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Analog Devices Semiconductor Electronic Components Datasheet



AD1988A

High Definition Audio


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High Definition Audio SoundMAX® Codec
AD1988A/AD1988B
FEATURES
Ten 192 kHz DACs
Five independent stereo DAC pairs
7.1 surround sound plus independent headphone
Independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
sample rates
Selectable stereo mixer on outputs
16-, 20-, and 24-bit PCM resolution
Six 192 kHz ADCs
Three independent stereo ADC pairs
Simultaneous record of up to three stereo channels
Support for quad microphone arrays plus independent
capture channel
Independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
sample rates
16-, 20-, and 24-bit resolution
S/PDIF output
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
sample rates
16-, 20-, and 24-bit data widths
PCM, WMA/PRO, Dolby®, AC3, and DTS® formats
Digital PCM gain control
Digital PCM ADC/stream mixer
S/PDIF input
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
sample rates
16-, 20-, and 24-bit data widths
PCM, WMA/PRO, Dolby, AC3, and DTS formats
Digital PCM gain control
Auto synchronizes to source
High quality stereo CD input with GND sense
MONO_OUT pin for internal speakers or telephony
Retasking jack support
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™ compliant
101 dB outputs
92 dB audio inputs
Internal 32-bit arithmetic for greater accuracy
Impedance and presence detection on all jacks
Analog PCBEEP and digital synthesis BEEP
C/LFE channel swap
Two general-purpose digital I/O (GPIO) pins
3.3 V analog and digital supplies
Reduced support components
Advanced power management modes
48-pin LQFP and LFCSP_VQ package options, Pb-free
Supports Andrea Active Noise Reduction headphones
Hardware volume control
Built-in microphone gain amps
Adjustable microphone bias pins
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.



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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
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............................................................ 19
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
REVISION HISTORY
10/06—Revision 0: Initial Version
Rev. 0 | Page 2 of 20



Part Number AD1988A
Description High Definition Audio
Maker Analog Devices - Analog Devices
Total Page 20 Pages
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