AD1988B Analog Devices, AD1988B Datasheet
AD1988B
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AD1988B Summary of contents
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... Three stereo headphone amps AD1988A: Windows Vista™ Operating System Premium Logo compliant 95 dB outputs 90 dB audio inputs AD1988B: Windows Vista Premium Logo compliant and Dolby Master Studio™ compliant 101 dB outputs 92 dB audio inputs Internal 32-bit arithmetic for greater accuracy ...
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... AD1988A/AD1988B TABLE OF CONTENTS Features .............................................................................................. 1 Enhanced Features............................................................................ 1 Revision History ............................................................................... 2 Functional Block Diagram .............................................................. 3 Specifications..................................................................................... 4 Test Conditions............................................................................. 4 Absolute Maximum Ratings............................................................ 7 Thermal Resistance ...................................................................... 7 ESD Caution.................................................................................. 7 REVISION HISTORY 10/06—Revision 0: Initial Version Pin Configuration and Function Descriptions..............................8 Clarification of Output Configurations .................................. 11 HD Audio Widgets......................................................................... 12 Jack Presence Detection................................................................. 18 HD Audio Style Jack Presence Detection ............................... 18 Hardware Volume Control ...
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... Figure 1. Block Diagram Rev Page AD1988A/AD1988B AVSS +3.3V +/-5% AVDD MIC Bias Regulator MIC_BIAS_FILT Stereo Paths ntrol Mono Paths VREF VREF_FILT 101+ dB (AD1988B Pow ntrol Σ (21 ) Split ...
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... AD1988A/AD1988B SPECIFICATIONS TEST CONDITIONS Test Conditions for the AD1988A and AD1988B are as follows, unless otherwise noted. Analog Input/Output Conditions Temperature at 25°C Digital supply ( 3.3 V ±10% DD Analog supply ( 3.3 V ±5% DD MIC_BIAS_FILT at 5.0 V ±5% Sample rate ( kHz S Input signal at 1008 Hz Analog output pass band kHz Table 1 ...
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... When ports are used as inputs 0 dB boost +10 dB boost +20 dB boost +30 dB boost 1 − reference to f A-weighted 3.3 V ± 10% IO Rev Page AD1988A/AD1988B Typ AD1988A/ Min AD1988B Max Unit 3 1.0 V rms 2.83 V p-p 300 Ω 10 kΩ 1000 pF −85/−85 dB ...
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... RESET Conditions/Comments 3.3 V ± 5% 3.3 V ± 10% 3.3 V ± 10% 100 mV p-p signal @ 1 kHz Comments D-State D3 Powered down saves (each) D3 Powered down saves (each) D3 Saves D3 Powered down saves D3 Low (active) state Rev Page Typ AD1988A/ Min AD1988B Max Unit 3.13 3.30 3.46 V 155/172 mW 47/52 mA 2.97 3.30 3.63 V 247.5/238 mW 75/75 mA 2.97 3.30 3. ...
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... Package Type LQFP 4 LFCSP_VQ θ thermal resistance: junction-to-ambient. JA θ thermal resistance: junction-to-case. JC θ thermal resistance: case-to-ambient very thin quad. ESD CAUTION Rev Page AD1988A/AD1988B × θ θ θ θ Unit ºC/W 47 ...
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... Input: line level input, supports microphones with MIC Bias and boost amplifiers. Output: line level output, capable of driving headphone load and power. Rev Page CORE PIN I AD1988A/AD1988B 5 6 TOP VIEW (Not to Scale SYNC 10 ...
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... Switchable Microphone Bias for PORT-D. This pin has the same function as MIC_BIAS-B. Filter for Microphone Bias Boost Circuitry. Connect this pin to 5.0 V via a low-pass filter. When connected in this way, the AD1988A/AD1988B are each capable of providing 3. microphone bias to all of the MIC_BIAS pins not available, connect this pin to 3.3 V (AV via a low-pass filter ...
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... AD1988A/AD1988B Table 6. Pins Grouped by Function Function Digital Interface Digital Input/Output Jack Sense Filter/Reference Microphone Bias Power and Ground Analog Input/Output Pin No. Mnemonic 5 SDATA_OUT 6 BIT_CLK 8 SDATA_IN 10 SYNC 11 RESET 48 S/PDIF_OUT 47 S/PDIF_IN/GPIO_1 2 GPIO_0/VOLUME 13 SENSE_A/SRC_B 34 SENSE_B/SRC_A 1 DV CORE 27 VREF_FILT 33 MIC_BIAS_FILT 28 MIC_BIAS-B 29 MIC_BIAS-C 30 MIC_BIAS-F 31 MIC_BIAS-E 32 MIC_BIAS-D ...
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... PORT PORT-D PORT PORT-E/PORT Rev Page AD1988A/AD1988B Function HP MIC Front Panel Headphone x x Front Panel Microphone x x Rear Panel Line- x In/Surround-Rear (5.1) Rear Panel x x Front/Headphone Rear Panel x Microphone/C/LFE Internal Mono Speaker ...
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... AD1988A/AD1988B HD AUDIO WIDGETS Table 10. Node ID Name ROOT 00 FUNCTION 01 S/PDIF DAC 02 DAC_0 03 DAC_1 04 DAC_2 05 DAC_3 06 S/PDIF ADC 07 ADC_0 08 ADC_1 09 DAC_4 0A S/PDIF Mix Selector 0B ADC Selector 0 0C ADC Selector 1 0D ADC Selector 2 0E ADC_2 0F Digital Beep 10 PORT-A 11 PORT-D 12 MONO_OUT 13 PORT-B 14 PORT-C 15 PORT-F 16 PORT-E ...
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... Node Vendor ID ID Name 0x00 00 ROOT 11D41988 01 FUNCTION 1 Silicon revision number may change without prior notice. Number shown is current at the publication date of this document. Table 12. AD1988B Device Root and Function Node Parameters Node Vendor ID ID Name 0x00 00 ROOT 11D4198B 01 FUNCTION 1 Silicon revision number may change without prior notice. Number shown is current at the publication date of this document. ...
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... AD1988A/AD1988B Table 13. Widget Parameters Widget PCM Size, Node Capabilities Rate 000004C0 000E07FF 02 0 00030311 000E07E0 03 0 00000405 000E07FF 0 00000405 000E07FF 00000405 000E07FF 06 0 00000405 000E07FF 07 1 00130391 000E07E0 08 1 00100501 000E07FF 09 1 00100501 000E07FF 0A 0 00000405 000E07FF 3 00300301 ...
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... Stream Pin Input Amp Formats Capabilities Capabilities Rev Page AD1988A/AD1988B Output Con. List Power Amp Length States Capabilities 00000002 00000003 00000003 00000003 00000003 00000001 00270300 00000001 00270300 00000001 00270300 00000001 ...
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... AD1988A/AD1988B Table 14. Connection List Node Connections Length 02 0000001D 0000001C 1 08 0000000C 1 09 0000000D 000F0908 3 0C 2418BC38 00203D25 7 0D 2418BC38 00203D25 7 0E 2418BC38 00203D25 7 0F 0000000E 00000022 1 12 00000029 1 13 ...
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... External Rear Mic in Internal Special 3 CD Internal Special 3 Other External Rear S/PDIF out External Rear S/PDIF in External Rear Line out External Rear Line out Rev Page AD1988A/AD1988B NID I NID I NID I NID Conn Misc Type Color JD Ovrrd ⅛ ...
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... AD1988A/AD1988B JACK PRESENCE DETECTION HD AUDIO STYLE JACK PRESENCE DETECTION The AD1988 uses two jack sense pins for presence detection eight audio jacks. This, combined with the device identifi- cation engine, enables software to determine if there is a device plugged into the circuit, and the type of device it is. Allowing software to configure jacks and amplifiers, as necessary, ensures proper audio operation ...
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... UP DOWN MUTE Figure 4 . Volume Control Circuitry The AD1988A/AD1988B support external volume control on Pin 2 (GPIO_0/VOLUME). The circuit diagram in Figure 4 allows up/down/mute control using only three switches and four resistors external to the codec. The up/down switches can also be replaced by a center-position-off SPDT toggle switch. ...
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... AD1988BJSTZ-RL 101 dB 1 AD1988BJCPZ 101 dB 1 AD1988BJCPZ-RL 101 Pb-free part. Dolby and Dolby Master Studio are trademarks of Dolby Laboratories. DTS is a trademark of DTS, Inc. Windows Vista is either a registered trademark or trademark of Microsoft Corporation in the United States and/or other countries. ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners ...