ad1988a Analog Devices, Inc., ad1988a Datasheet
ad1988a
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ad1988a Summary of contents
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... Trademarks and registered trademarks are the property of their respective owners. High Definition Audio SoundMAX ENHANCED FEATURES 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™ ...
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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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... / GAM GAM GAM 0 (39 – GAM 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 ...
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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 − ...
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... 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 3.63 V 3. AD1988A/AD1988B DI Typ AI Typ Unit DD DD 21/20 1.2/1.7 mA 6/6 5/5.6 mA 5.3/5.4 3.2/3.1 mA 0/0 2.0/2.4 mA 0/0 0.5/0.5 mA 2.9/2.7 3.1/3.4 mA ...
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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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... PORT-C Boost 3A Audio selector PORT-F Boost 3B Audio selector PORT-E Boost 3C Audio selector PORT-D Boost 3D Audio selector Table 11. AD1988A Device Root and Function Node Parameters 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. ...
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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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... SEATING PLANE ORDERING GUIDE Model Audio Output Performance AD1988AJSTZ 1 AD1988AJSTZ- AD1988AJCPZ AD1988AJCPZ- AD1988BJSTZ 101 dB 1 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. © ...