ALC888T REALTEK, ALC888T Datasheet
ALC888T
Related parts for ALC888T
ALC888T Summary of contents
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... ALC888T-GR 7.1+2 CHANNEL HIGH DEFINITION AUDIO CODEC for VOIP APPLICATIONS DATASHEET Realtek Semiconductor Corp. No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan Tel.: +886-3-578-0211. Fax: +886-3-577-6047 www.realtek.com.tw Rev. 1.1 09 February 2007 Track ID: JATR-1076-21 ...
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... USING THIS DOCUMENT This document is intended for the hardware and software engineer’s general information on the Realtek ALC888T-GR Audio Codec ICs. Though every effort has been made to ensure that this document is current and accurate, more information may have become available subsequent to the production of this guide. In that event, please contact your Realtek representative for additional information that may help in the development process ...
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... Parameter – Subordinate Node Count (Verb ID=F00h, Parameter ID=04h)......................................................25 8.1.4. Parameter – Function Group Type (Verb ID=F00h, Parameter ID=05h) ...........................................................25 7.1+2 Channel High Definition Audio Codec for VoIP Applications Table of Contents .....................................................................................................................2 ......................................................................................................................3 U .........................................................................................................5 NIT V I ............................................................................6 ERSION DENTIFICATION .....................................................................................................................13 ............................................................................................................19 F .......................................................................................................21 ORMAT ...................................................................................................................22 (V ID=F00 ) .................................................................................24 ERB H ALC888T-GR iii Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... ESPONSE NABLE ID=F01 ) .................................................... .....................................................................33 )..............................................................33 H )................................................................. ..................................................................39 H ID=F06 ) ...................................................46 H ID=706 ) ....................................................47 H )................................................................... ...................................................................49 H ID=F08 ) ...............................................50 ERB H ID=708 ) ................................................50 ERB H ) ...........................................................52 H ID=71C /71D /71E ERB H H ).....................................................................55 )...................................................................... ID=F19 ) ...........................57 ASK ERB ID=719 ) ............................57 ASK ERB H iv Track ID: JATR-1076-21 ALC888T-GR Datasheet /71F H H FOR Rev. 1.1 ...
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... ONVERTER ONTROL & C ONVERTER ONTROL ID [31:0] (V ID=F20 ERB ID [31:0] (V ID=723 ERB H FOR ...................................................................................................................63 .....................................................................................................................65 ................................................................................................................ ID= F0D , F0E ONTROL ERB ID=70D , 70E ONTROL ERB H /F21 /D22 /F23 ) ...................................... [31:24], 722 [23:16], 721 H FOR v Track ID: JATR-1076-21 ALC888T-GR Datasheet ) .............. ................ FOR Rev. 1.1 ...
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... Table 41. Verb – Get Processing Coefficient (Verb ID=Ch).....................................................................39 Table 42. Verb – Set Processing Coefficient (Verb ID=4h)......................................................................39 Table 43. Verb – Get Amplifier Gain (Verb ID=Bh) ................................................................................40 Table 44. Verb – Set Amplifier Gain (Verb ID=3h)..................................................................................42 7.1+2 Channel High Definition Audio Codec for VoIP Applications List of Tables vi ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Table 76. S/PDIF Input/Output Characteristics ........................................................................................64 Table 77. Link Reset and Initialization Timing ........................................................................................65 Table 78. Link Timing Parameters at the Codec.......................................................................................66 Table 79. S/PDIF Output and Input Timing..............................................................................................67 Table 80. Analog Performance .................................................................................................................68 Table 81. Ordering Information ................................................................................................................71 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR vii Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Figure 12. Codec Transmits Data Over Multiple SDIs.............................................................................16 Figure 13. Link Reset Timing...................................................................................................................20 Figure 14. Codec Initialization Sequence.................................................................................................21 Figure 15. Link Reset and Initialization Timing.......................................................................................65 Figure 16. Link Signals Timing ................................................................................................................66 Figure 17. Output and Input Timing .........................................................................................................67 7.1+2 Channel High Definition Audio Codec for VoIP Applications List of Figures viii ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Windows Vista premium desktop and notebook PC systems. The ALC888T-GR supports host/soft audio from the Intel ICH series chipset, and also from any other HDA compatible audio controller. With EAX/Direct Sound 3D/I3DL2/A3D compatibility, and excellent ...
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... Built-in headphone amplifiers for each re-tasking jack Two GPIOs (General Purpose Input and Output) for customized applications Supports anti-pop mode when analog power AVDD is on and digital power is off. 64-pin LQFP ‘Green’ package 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 2 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Software DTMF decoder supports VoIP using traditional phone API and library available for system integrator to develop their own GUI for VoIP application 3. System Applications Desktop multimedia PCs Laptop PCs Information appliances (IA) e.g., set-top box 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 3 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Block Diagram 7.1+2 Channel High Definition Audio Codec for VoIP Applications Figure 1. Block Diagram 4 ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Analog Input/Output Unit Pin Complex widgets NID=14h~1Bh are re-tasking IOs. Output_Signal_Left Output_Signal_Right Input_Signal_Left Input_Signal_Right 7.1+2 Channel High Definition Audio Codec for VoIP Applications A R EN_OBUF EN_AMP R EN_OBUF EN_IBUF Figure 2. Analog Input/Output Unit 5 ALC888T-GR Datasheet Left Right Track ID: JATR-1076-21 Rev. 1.1 ...
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... ALC888T 57 58 LLLLLLL 59 60 TXXXXV TAIWAN Figure 3. Pin Assignments 6 ALC888T-GR Datasheet LINE1-R 32 LINE1 MIC1-R 29 MIC1-L 28 CD-R 27 CD-GND 26 CD-L 25 MIC2-R 24 MIC2-L 23 LINE2-R 22 LINE2-L 21 Sense A VOICE-IN+ 20 VOICE-IN- ...
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... Output has 12mA@75Ω driving capability V Chip select, output CMOS Output, Vt=(2/3)*DVDD Serial port data input CMOS Input, Vt=(2/3)*DVDD Serial port data output CMOS Output, Vt=(2/3)*DVDD Serial port bit clock output CMOS Output, Vt=(2/3)*DVDD Total: 17 Pins ALC888T-GR =DVDD, V =DVSS OH OL =DVDD, V =DVSS OH OL =0.5*DVDDIO t =0 ...
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... Low Frequency output Analog output (JACK -G) Side output left channel Analog output (JACK -H) Side output right channel Analog output (JACK -H) Jack Detect pin l Jack resistor network input 1 Jack Detect pin 2 Jack resistor network input 2 Total: 26 Pins 8 ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Analog GND Analog ground for DACs and ADCs Digital VDD Digital power for core Digital GND Digital ground for core Digital VDD Digital IO power for HDA bus Digital GND Digital ground for HDA bus Total: 8 Pins 9 ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Channel High Definition Audio Codec for VoIP Applications T = 20.833 µs (48KHz) frame_sync Stream 'A' Tag Stream 'B' Tag (Here ' Stream 'B' Data Stream 'A' Data Stream Stream 'C' Data 'C' Tag (n bytes + 10-bit data) Figure 4. HDA Link Protocol 10 ALC888T-GR Datasheet Next Frame (Here ' Track ID: JATR-1076-21 Rev. 1.1 ...
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... Start of Frame 999 998 997 996 995 994 993 992 991 990 499 Codec samples SDO at both rising and falling edge of BCLK Figure 5. Bit Timing 11 ALC888T-GR 498 497 496 495 494 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... The multiple SDOs and multiple SDIs are used to expand the transmission rate between controller and codecs. Section 7.2 Frame Composition, page 13 describes the detailed outbound and inbound stream compositions for single and multiple SDOs/SDIs. The connections shown in Figure 6 can be implemented concurrently in an HDA system. The ALC888T-GR is designed to receive a single SDO stream. SDI14 . . ...
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... Preamble Stream=10 Data of Stream 10 (4-Bit) (4-Bit Previous Stream SDO Stream Tag is Indicated in SYNC 13 ALC888T-GR Next Frame Stream 'X' Tag (Here ' Stream 'X' Data Padded at the Null Field end of Frame time of samples, Block2 th Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... SDO1 is for transmitting a striped stream. The codec does not support multiple SDOs connected to SDO0. To guarantee all codecs can determine their corresponding stream, the command stream is not striped always transmitted on SDO0, and copied on SDO1. 7.1+2 Channel High Definition Audio Codec for VoIP Applications Figure 9. Striped Stream on Multiple SDOs 14 ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Sample Block Data Length in Bytes n-1 A Complete Stream Figure 11. SDI Stream Tag and Data ALC888T-GR Next Frame 0s Stream 'X' Null Field Padded at the end of Frame (N+1) th Null Pad n-2 0 (Data Length in Bytes *8)-Bit 15 Track ID: JATR-1076-21 ...
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... AND interleave an empty frame between non-empty frames (Table 9, page 18). 7.1+2 Channel High Definition Audio Codec for VoIP Applications Stream 'A' Tag A Data A Stream 'X' Stream 'B' Tag B Data B Stream and Y are independent and have separate IDs ALC888T-GR Stream ' Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... One sample block is transmitted in every 4 frames One sample block is transmitted in every 3 frames One sample block is transmitted in every 6 frames One sample block is transmitted in every 6 frames Two sample blocks are transmitted in each frame Four sample blocks are transmitted in each frame 17 ALC888T-GR Datasheet Track ID: JATR-1076-21 Rev. 1.1 ...
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... Channel High Definition Audio Codec for VoIP Applications 44.1kHz Variable Rate of Delivery Timing -11 -12 -11 -11 -12 -11 -11 -11 - (repeat -11 -12 -11 -11 -12 -11 -11 -11 - (repeat) ALC888T-GR 18 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... The controller drives SYNC and all SDOs to low. Codecs also drive SDIs to low The controller asserts the RST# signal to low, and enters the ‘Link Reset’ state All link signals driven by controller and codecs should be tri-state by internal pull low resistors 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 19 Track ID: JATR-1076-21 Datasheet ...
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... Channel High Definition Audio Codec for VoIP Applications 4 BCLK 4 BCLK Link in Reset Driven Low Pulled Low Driven Low Pulled Low Pulled Low Driven Low Pulled Low Figure 13. Link Reset Timing 20 ALC888T-GR Datasheet >=100 usec >= 4 BCLK Initialization Sequence Normal Frame SYNC 8 Wake Event Track ID: JATR-1076-21 Rev. 1.1 ...
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... Codec Controller Drives SDIx Turnaround (477 BCLK Max.) Figure 14. Codec Initialization Sequence Bit [31:28] Bit [27:20] Codec Address Node ID Bit [31:28] Bit [27:20] Codec Address Node ID ALC888T-GR Address Frame (Non-48kHz Frame) Frame SYNC 6 SD14 7 8 Controller Codec Drives SDIx Turnaround (477 BCLK Max.) Bit [19:16] Bit [15:0] ...
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... Power Management The ALC888T-GR does not support Wake-Up events when in low power mode. All power management state changes in widgets are driven by software. Table 14 shows the System Power State Definitions. In the ALC888T-GR, all the widgets, including output/input converters, support power control. Software may have various power states depending on system configuration ...
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... All headphone drivers are powered down All internal mixer widgets are powered down. The DC reference and VREFOUTx at individual pin complexes are still alive All internal references, DC reference, and VREFOUTx at individual pin complexes are off 23 ALC888T-GR Datasheet D2 D3 Link Reset Normal PD ...
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... Codec Response Format Bit Description 31:24 Reserved. Read as 0’s 23:20 MajRev. The major version number (in decimal) of the HDA Spec to which the ALC888T-GR is fully compliant 19:16 MinRev. The minor version number (in decimal) of the HDA Spec to which the ALC888T-GR is fully compliant 15:8 Revision ID. The vendor’s revision number 00h is for the first silicon version, 01h is for the second version, etc ...
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... Unsolicited response is supported by this function group 7:0 Function Group Type 00h: Reserved 01h: Audio Function 02h: Modem Function 03h~7Fh: Reserved 80h~FFh: Vendor Defined Function Note: The Audio Function Group (NID=01h) supports this parameter. 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 25 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... No processing control 1: Processing control is supported 5 Reserved. Read Format Override 3 AmpParOvr, AMP Param Override 7.1+2 Channel High Definition Audio Codec for VoIP Applications 1h: Audio Input 2h: Mixer 3h: Selector 6h: Volume Knob Widget 7h~Eh: Reserved 26 ALC888T-GR Datasheet 4h: Pin Complex Fh: Vendor defined audio widget Track ID: JATR-1076-21 Rev. 1.1 ...
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... R12. 384kHz (=8*48kHz) rate support 0: Not supported 1: Supported 10 R11. 192kHz (=4*48kHz) rate support 0: Not supported 1: Supported 9 R10. 176.4kHz (=4*44.1kHz) rate support 0: Not supported 1: Supported 8 R9. 96kHz (=2*48kHz) rate support 0: Not supported 1: Supported 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 27 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Codec Response Format Bit Description 31:3 Reserved. Read as 0’s 2 AC3 0: Not supported 1: Supported 1 Float32 0: Not supported 1: Supported 0 PCM 0: Not supported 1: Supported Note: Input converters and output converters support this parameter. 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 28 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Note: Only Pin Complex widgets support this parameter. 7.1+2 Channel High Definition Audio Codec for VoIP Applications 100% 80% Reserved 29 ALC888T-GR Datasheet Ground 50% Hi-Z Track ID: JATR-1076-21 Rev. 1.1 ...
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... Reserved. Read as 0 14:8 Number of Steps Indicates the number of steps in the gain range. ‘0’ means the gain is fixed 7 Reserved. Read as 0 6:0 Offset. Indicates which step is 0dB 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 30 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Codec Response Format Bit Description 31:16 Reserved. Read as 0’s 15:8 NumCoeff. Number of Coefficient 7:1 Reserved. Read as 0’s 0 Benign 0: Processing unit is not linear and time invariant 1: Processing unit is linear and time invariant 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 31 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Bit Description 31:0 Reserved. Read as 0’s Note: The ALC888T-GR does not support volume knob and will respond with 0s to this parameter. 8.2. Verb – Get Connection Select Control (Verb ID=F01h) Table 34. Verb – Get Connection Select Control (Verb ID=F01h) Get Command Format ...
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... Returns 22h (Sum Widget) for N=0~3 Returns 00h for N>3 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Select Index [7:0] Bit [19:8] Payload Bit [7:0] Offset Index - N[7:0] ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes Codec Response Format Response [31:0] 32-bit Response 33 Track ID: JATR-1076-21 Datasheet Rev ...
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... Returns 00h 23:16 Connection List Entry (N+2) Returns 00h 15:8 Connection List Entry (N+1) Returns 0Bh (Mixer) for N=0~3 Returns 00h for N>3 7:0 Connection List Entry (N) Returns 02h (Front DAC) for N=0~3 Returns 00h for N>3 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 34 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Returns 0Bh (Mixer) for N=0~3 Returns 00h for N>3 7:0 Connection List Entry (N) Returns 05h (Front DAC) for N=0~3 Returns 00h for N>3 Codec Response for NID=26h (Fout Sum) Bit Description 31:24 Connection List Entry (N) Returns 00h 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 35 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Codec Response for NID= 22h/23h/ (Sum Widget before MIX/LINE ADCs) Bit Description 31:24 Connection List Entry (N+3) Returns 1Bh (Pin Complex – LINE2) for N=0~3 Returns 15h (Pin Complex-SURR) for N=4~7 Returns 00h for N>7 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 36 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Get Command Format Bit [31:28] Bit [27:20] CAd=X Node ID=Xh Verb ID=F03h Codec Response for All NID Bit Description 31:0 Not supported (returns 00000000h) 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0’s ALC888T-GR Codec Response Format Response [31:0] 32-bit response 37 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Bit [19:8] Payload Bit [7:0] Processing State [7:0] Bit [19:16] Payload Bit [15:0] Verb ID=Dh 0’s Bit [19:16] Payload Bit [15:0] Verb ID=5h Coefficient Index [15:0] ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes Codec Response Format Response [31:0] Bit [15:0] are Coefficient Index Codec Response Format Response [31:0] 0’s for all nodes 38 ...
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... Codec Response for All NID Bit Description 31:0 0’s 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:16] Payload Bit [15:0] Verb ID=Ch 0’s Bit [19:16] Payload Bit [15:0] Verb ID=4h Coefficient [15:0] ALC888T-GR Codec Response Format Response [31:0] Processing Coefficient [15:0] Codec Response Format Response [31:0] 0’s for all nodes 39 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Bit- ‘Get Amplifier Gain’: Read as 0’s (No Output Amplifier Mute) 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:16] Payload Bit [15:0] Verb ID=Bh ‘Get’ payload [15:0] ALC888T-GR Codec Response Format Response [31:0] Bit[7:0] are responsible for ‘Get’ 40 Track ID: JATR-1076-21 Datasheet ...
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... Bit- ‘Get Amplifier Gain’: Read as 0’s Bit- ‘Get Amplifier Gain’: Read as 0 (No Output Amplifier Gain) Codec Response to Other NID Bit Description 31:0 Not supported (returns 00000000h) 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 41 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Mute 0: Unmute 1: Mute (-∞ gain) 6:0 Gain[6:0] A 7-bit step value specifying the amplifier gain 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Verb ID=3h ‘Set’ payload [7:0] ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes 42 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Sample Base Rate Multiple (MULT) 000b: *1 001b: *2 10:8 Sample Base Rate Divisor (DIV) 000b: /1 001b: /2 The ALC888T-GR does not support Divisor. Always read as 000b 7 Reserved. Read as 0. 6:4 Bits per Sample (BITS) 000b: 8 bits 3:0 Number of Channels 0: 1 channel Codec Response for other NID ...
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... Set format [15:0] 010b: *3 011b: *4 100b~111b: Reserved 010b: /3 011b: /4 100b: /5 001b: 16 bits 010b: 20 bits 011b: 24 bits 1: 2 channels 2: 3 channels …..… 15: 16 channels ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes 101b: /6 110b: /7 111b: /8 100b: 32 bits 101b~111b: Reserved 44 Track ID: JATR-1076-21 Datasheet ...
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... PS-Set controls the current power setting of the referenced node Codec Response for other NID Bit Description 31:0 Not supported (returns 00000000h) 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Verb ID=Ah 0’s ALC888T-GR Codec Response Format Response [31:0] Power State [7:0] 45 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Description 31:0 Not supported (returns 00000000h) 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Power State [7:0] Bit [19:8] Payload Bit [7:0] 0’s ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes Codec Response Format Response [31:0] Stream & Channel [7:0] 46 Track ID: JATR-1076-21 Datasheet ...
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... Note: This verb assigns stream and channel for output converters (NID=02h~06h, 25h) and input converters (NID=08h~0Ah). Other widgets will ignore this verb. 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Stream & Channel [7:0] ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes 47 Track ID: JATR-1076-21 Datasheet Rev ...
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... AVDD 101b: 100% of AVDD 110b~111b: Reserved Codec Response for other NID Bit Description 31:0 Not supported (returns 00000000h) 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0’s ALC888T-GR Codec Response Format Response [31:0] Pin Control [7:0] 48 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... AVDD 010b: Ground 0V 011b: Reserved 100b: 80% of AVDD) 101b: 100% of AVDD 110b~111b: Reserved 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] Pin Control [7:0] ALC888T-GR Codec Response Format Response [31:0] 0’s for all nodes 49 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Tag[3:0] is defined by software to assign a 4-bit tag for nodes that are enabled to generate unsolicited responses 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0’s Bit [19:8] Payload Bit [7:0] EnableUnsol [7:0] ALC888T-GR Codec Response Format Response [31:0] 32-bit Response Codec Response Format Response [31:0] 0’s for all nodes 50 Track ID: JATR-1076-21 Datasheet Rev ...
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... Presence Detect Status 0: No device is attached to the pin 1: Device is attached to the pin 30:0 Measured Impedance The ALC888T-GR does not support hardware impedance detection. This field is read as 0s. Codec Response for other NID Bit Description 31:0 Not supported (returns 00000000h) 8.24. Verb – Execute Pin Sense (Verb ID=709h) Table 55. Verb – ...
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... Codec Response for All NID Bit Description 31:0 0’s 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0’s Bit [19:8] Payload Bit [7:0] Label [7:0] ALC888T-GR Codec Response Format Response [31:0] 32-bit Response Codec Response Format Response [31:0] 0’s for all nodes 52 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Codec Response for All NID Bit Description 31:0 0’s 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0’s Bit [19:8] Payload Bit [7:0] Divider [7:0] ALC888T-GR Codec Response Format Response [31:0] Divider [7:0] Codec Response Format Response [31:0] 0’s for all nodes 53 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Set command for NID=01h (Audio Function Group) Bit Description 31:8 Reserved 7:3 GPIO[7:3] output Data. Not supported in the ALC888T-GR 2:0 GPIO[2:0] Output Data The value written determines the value driven on a pin that is configured as an output pin Codec Response for All NID Bit ...
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... Bit Description 31:8 Reserved 7:3 GPIO[7:3] Enable Mask. Not supported in the ALC888T-GR 2:0 GPIO[2:0] Enable Mask 0: The corresponding GPIO pin is disabled and is in Hi-Z state 1: The corresponding GPIO pin is enabled. Its behavior is determined by the GPIO direction control Note: All nodes except Audio Function Group (NID=01h) will ignore this verb. ...
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... Codec Response for NID=01h (Audio Function Group) Bit Description 31:8 Reserved 7:3 GPIO[7:3] Direction Control. Not supported in the ALC888T-GR 2:0 GPIO[2:0] Direction Control 0: The corresponding GPIO pin is configured as an input 1: The corresponding GPIO pin is configured as an output Note: All nodes except Audio Function Group (NID=01h) will ignore this verb. ...
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... Bit Description 31:8 Reserved 7:3 GPIO[7:3] Unsolicited Enable Mask. Not supported in the ALC888T-GR 2:0 GPIO[2:0] Unsolicited Enable mask 0: Unsolicited response will not be sent on link 1: Unsolicited response will be sent on link when state of corresponding GPIO has been changed Note: All nodes except Audio Function Group (NID=01h) will ignore this verb. ...
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... Description 31:0 Reserved. Read as 0’s Note: The Function Reset command causes all widgets in the ALC888T-GR to return to their power on default state. 8.38. Verb – Get Digital Converter Control 1 & Control 2 (Verb ID= F0Dh, F0Eh) Table 69. Verb – Get Digital Converter Control 1 & Control 2 (Verb ID= F0Dh, F0Eh) ...
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... In‘V’alid. V bit in sub-frame of S/PDIF-IN 0: Data X and Y are valid, or S/PDIF-IN is not locked 1: At least one of data X and Y is invalid 0 Digital Enable. DigEn 0: OFF 1: ON Codec Response for Other NID Bit Description 31:0 0’s 7.1+2 Channel High Definition Audio Codec for VoIP Applications ALC888T-GR 59 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... V for Validity Control (control V bit and data in Sub-Frame) 0 Digital Enable. DigEn 0: OFF 1: ON 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] SIC [7:0] Bit [19:8] Payload Bit [7:0] SIC [15:8] ALC888T-GR Codec Response Format Response [31:0] 0’s Codec Response Format Response [31:0] 0’s 60 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Bit [31:28] Bit [27:20] CAd = X Node ID=01h Verb ID=F20h Codec Response for NID=01h Bit Description 31:16 Subsystem ID[23:8]. (Default=10ECh) 15:8 Subsystem ID[7:0]. (Default=08h). 7:0 Assembly ID[7:0]. (Default=88h). 7.1+2 Channel High Definition Audio Codec for VoIP Applications Bit [19:8] Payload Bit [7:0] 0s ALC888T-GR Codec Response Format Response [31:0] 32-bit Response 61 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Verb ID=723h, Codec Response for all NID Bit Description 31:0 0s 7.1+2 Channel High Definition Audio Codec for VoIP Applications Table 72. Verb – Set Subsystem ID [31:0] Bit [19:8] Payload Bit [7:0] Label [7:0] 722h, 721h, 720h ALC888T-GR Codec Response Format Response [31:0] 0s for all nodes 62 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... AVDD 4 ESD (Electrostatic Discharge) Susceptibility Voltage Table 74. Threshold Voltage Symbol Minimum V -0. 0.65* IH DVDDIO 0.56* DVDD IH (1.85) V 0.9*DVDD - ALC888T-GR Typical Maximum 3.3 3.6 3.3 3.6 5.0 5.5 - +70 - +125 Pass 3500V Typical Maximum - DVDD +0.30 - 0.30* DVDDIO - - - 0.44*DVDD (1.45 0.1*DVDD - 50k - Track ID: JATR-1076-21 Datasheet Units ...
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... S/PDIF-IN High Level Input S/PDIF-IN Low Level Input S/PDIF-IN Bias Level 7.1+2 Channel High Definition Audio Codec for VoIP Applications Table 75. Digital Filter Characteristics Minimum 0 0.60* 0.60* Table 76. S/PDIF Input/Output Characteristics Symbol Minimum ALC888T-GR Typical Maximum - 0.45* -76.0 - ±0. 0.45* -78.5 - ±0.020 - Typical Maximum 3 0 1.45 1.65 - ...
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... RESET# 7.1+2 Channel High Definition Audio Codec for VoIP Applications Table 77. Link Reset and Initialization Timing Symbol Minimum T 1.0 RST T 20 PLL T - FRAME 4 BCLK T RST Figure 15. Link Reset and Initialization Timing ALC888T-GR Typical Maximum - - - - - 1 >= 4 BCLK Normal Frame Initialization Request T T PLL FRAME 65 ...
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... T - cycle T - jitter T 18.75 high (45%) T 18.75 low (45%) T 2.1 setup T 2.1 hold T - tco T - flight T_cycle T_high T_low T_setup T_hold T_tco Figure 16. Link Signals Timing Typical Maximum 24.0 - 41. 2.0 - 22.91 (55%) - 22.91 (55 7.5 8.0 2.0 - T_flight 66 Track ID: JATR-1076-21 ALC888T-GR Datasheet Units MHz (%) ns (%) Rev. 1.1 ...
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... Bit parameters for 48kHz sample rate of S/PDIF-OUT *2: Bit parameters for 48kHz sample rate of S/PDIF-IN 9.2.4. Test Mode The ALC888T-GR does not support codec test mode or Automatic Test Equipment (ATE) mode. 7.1+2 Channel High Definition Audio Codec for VoIP Applications Table 79. S/PDIF Output and Input Timing Symbol ...
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... C, DVDD=3.3V ±5%, AVDD=5.0V±5% =25 ambient • 1kHz input sine wave; Sampling frequency=48kHz; 0dB=1Vrms • 10KΩ/50pF load; Test bench Characterization BW:10Hz~22kHz Table 80. Analog Performance Min - - - - - - - - - - 2. ALC888T-GR Datasheet Typical Max 1.6 - 1.1 - 1 FSA FSA 97 dB FSA - - - 0.45*Fs - 0.45*Fs ...
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... Application Circuits The ALC888T 64-pin LQFP package NOT pin compatible with the 48-pin ALC88x series HD Audio Codecs. The ALC888T has interfaces that connect with an SLIC (Subscriber Line Interface Circuit) supporting VoIP through a traditional phone. As the SLIC IC is provided by various third party vendors, the application circuit depends on the various SLIC adaptations and driver ...
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... Reference document : JEDEC MS-026 , BBC TITLE : 64LD LQFP ( 10x10x1.4mm) PACKAGE OUTLINE DRAWING , FOOTPRINT 2.0mm LEADFRAME MATERIAL: APPROVE 0.60 0.80 3.5° 9° － － CHECK REALTEK SEMICONDUCTOR CO., LTD ALC888T-GR DOC. NO. VERSION 1 PAGE OF DWG NO. LQ064 - P1 DATE NOV. 06.1997 70 Track ID: JATR-1076-21 Datasheet Rev. 1.1 ...
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... Ordering Information Part Number ALC888T-GR Note 1: See page 6 for ‘Green’ package and version identification. Note 2: The ALC888T is NOT pin compatible with the 48-pin ALC88x series HD Audio Codecs. Note 2: The ALC888T is tested under AVDD =5.0V. (Only AVDD=5.0V is Supported). Realtek Semiconductor Corp. Headquarters No ...