ad1884a Analog Devices, Inc., ad1884a Datasheet
ad1884a
Available stocks
Related parts for ad1884a
ad1884a Summary of contents
Page 1
... HP HP Figure 1. Functional Block Diagram One Technology Way, P.O.Box 9106, Norwood, MA 02062-9106 U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 High Definition Audio SoundMAX Codec AD1884A PORT A PORT D MONO OUT PORT E PORT F PC BEEP PORT B PORT C AD1884A www.analog.com ©2008 Analog Devices, Inc. All rights reserved. ...
Page 2
... AD1884A TABLE OF CONTENTS Features ................................................................. 1 Revision History ...................................................... 2 General Description ................................................. 3 Additional Information .......................................... 3 Jack Configuration ................................................ 3 Specifications .......................................................... 4 Test Conditions .................................................... 4 Performance ........................................................ 4 General Specifications ............................................ 4 HD Audio Link Specification ................................... 7 Power-Down States ............................................... 7 Absolute Maximum Ratings .................................... 8 ESD Caution ........................................................ 8 Environmental Conditions ...................................... 8 Pin Configuration and Function Descriptions ................. 9 Audio Widgets ...................................................... 12 HD Audio Parameters ............................................. 13 HD Widget Parameters ...
Page 3
... AD1884A the right choice for notebook PCs that meet Microsoft Vista Premium performance as well as desktop PCs that meet Microsoft Vista Basic performance. The AD1884A is available in a 48-lead, RoHS compliant lead frame chip scale package in both reels and trays. See Guide on Page 17 ...
Page 4
... AD1884A SPECIFICATIONS TEST CONDITIONS Parameter Temperature Digital Supply Analog Supply MIC_BIAS_IN (via Low-Pass Filter) Sample Rate f S Input Signal (Frequency Sine Wave) Amplitude for THD + N Analog Output Pass Band DAC ADC PERFORMANCE Parameter Line-Out Drive (10 kΩ loads—DAC to Pin) Total Harmonic Distortion (THD + N) Dynamic Range (– ...
Page 5
... AD1884A Unit Bits % rms V p-p Ω kΩ rms V p-p Ω Ω rms V p-p V rms V p-p V rms V p-p V rms V p-p kΩ ...
Page 6
... AD1884A Parameter MICROPHONE BIAS MIC_BIAS-B, MIC_BIAS-C MIC_BIAS_IN (Pin 33 3.3 V MIC_BIAS_IN (Pin 33 MIC_BIAS_IN (Pin 33) = 3.3 V MIC_BIAS-E (When Enabled as BIAS) Output Drive Current GPIO 0 Input Signal High ( Input Signal Low ( Output Signal High ( Output Signal Low ( Input Leakage Current (Signal High) (I ...
Page 7
... Powering down the MIC_BIAS powers down all port MIC_BIAS pins. This disables all microphone bias circuits set to 100% or 50%, setting them to the high-Z state. The 0 V and high-Z states remain unaffected by the MIC_BIAS power state. 1 100 mV p-p Signal @ 1 kHz Typ (1.7 V) VDD 36 15.75 7.5 3 4.5 4 Rev Page March 2008 AD1884A Min Typ Max 3.13 3.30 3.46 75.9 23 2.97 3.30 3.63 141.9 43 1.615 1.70 1.995 ...
Page 8
... AD1884A ABSOLUTE MAXIMUM RATINGS Stresses greater than those listed below may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability ...
Page 9
... PCBEEP AD1884AJCP TOP VIEW (Not To Scale Figure 2. AD1884A 48-Lead Package and Pinout Rev Page March 2008 38 37 PORT-D_R 36 PORT-D_L 35 SENSE_B/SRC_A 34 MIC_BIAS_IN 33 32 MONO_OUT 31 MIC_BIAS-E/GPIO_1 30 GPIO_2 29 MIC_BIAS-C 28 MIC_BIAS _FLT ...
Page 10
... High- 1.65 V, 2.86 V, and 3.0 V (with 3 Pin 33). Source Power for Microphone Bias Boost Circuitry. I Connect this pin to 5.0 V via a low-pass filter. When connected this way, the AD1884A is capable of providing 3 mic bias to all of the mic bias pins (except on Pin 31 not available, connect this pin to 3.3 V (AV Rev ...
Page 11
... I Digital Supply Return (Ground). Digital Supply Voltage 3.3 V ± 10%. This is regulated down supply the internal digital core internal to the AD1884A. Direct, filtered 1 1 can be applied to Pin 1 to lower the digital power requirements. Pin 9 MUST be DD connected to Pin 1 in this case. ...
Page 12
... AD1884A HD AUDIO WIDGETS 1 Table 5. HD Audio Widgets Node ID Name Type ID 0x00 ROOT x 0x01 FUNCTION x 0x02 S/PDIF DAC 0 0x03 DAC_0 0 0x04 DAC_1 0 0x07 Port A Mixer 2 0x08 ADC_0 1 0x09 ADC_1 1 0x0A Port D Mixer 2 0x0B Port F Mixer 2 0x0C ADC Selector 0 3 0x0D ADC Selector 1 ...
Page 13
... Sub Node Count 0x0010 0100 0x0001 0001 0x0002 0029 Type Value Function 0xBFD4 0000 Rev Page March 2008 Func. Group Type Audio F.G. Caps 05 08 0x0000 0001 0x0001 0C0C 31:16 15:8 7:0 SSID SKU ASM ID 0xBFD4 0x00 0x00 AD1884A GPIO Caps 11 0x4000 0003 ...
Page 14
... AD1884A WIDGET PARAMETERS Table 8. Widget Parameters Widget PCM Size, Node Capabilities Rate ID 0x09 0x0A 0x01 0x0000 04C0 0x000E 07FF 0x02 0x0003 0211 0x000E 07E0 0x03 0x0000 0405 0x000E 07FF 0x04 0x0000 0405 0x000E 07FF 0x07 0x0020 0103 0x08 0x0010 0501 0x000E 07FF ...
Page 15
... Rev Page March 2008 AD1884A NID R NID R NID R NID R NID 0x19 0x1A 0x1C 0x1E 1 0x26 0x03 0x04 ...
Page 16
... AD1884A DEFAULT CONFIGURATION BYTES Table 10. Default Configuration Bytes Node ID Name 0x11 Port A (Headphone) 0x12 Port D (Line Out) 0x13 Mono Out 0x14 Port B (Mic In) 0x15 Port C (Line In) 0x16 Port F (Aux In/Out) 0x1A Analog PCBeep 0x1B S/PDIF Out 0x1C Port E (Dock I/O) Table 10. Default Configuration Bytes (Continued) ...
Page 17
... Figure 3. 48-Lead Lead Frame Chip Scale Package [LFCSP_VQ Body, Very Thin Quad (CP-48-1) Dimensions shown in millimeters Package Description 48-Lead LFCSP_VQ 48-Lead LFCSP_VQ, 13” Tape and Reel Rev Page March 2008 0.30 0.23 0.60 MAX 0.18 PIN 1 INDICATOR 48 1 EXPOSED 5.25 PAD 5.10 SQ (BOTTOM VIEW) 4. 0.25 MIN 5.50 REF Package Option CP-48-1 CP-48-1 AD1884A ...
Page 18
... AD1884A Rev Page March 2008 ...
Page 19
... Rev Page March 2008 AD1884A ...
Page 20
... AD1884A ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07398-0-3/08(0) Rev Page March 2008 ...