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Analog Devices Semiconductor Electronic Components Datasheet



AD1987

HD Audio Codec


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AD1987 pdf
a
High Definition Audio
SoundMAX Codec
AD1987
FEATURES
EIGHT 192 kHz DACs
Four independent stereo DAC pairs
7.1 surround sound or 5.1 stereo out plus independent
headphone
Independent 8, 11.025, 16, 22.05, 32, 44.1,
48, 88.2, 96, 176.4, and 192 kHz sample rates
16, 20, and 24-bit PCM resolution
Selectable stereo mixer on outputs
FOUR 96 kHz ADCs
Two independent stereo ADC pairs
Simultaneous record of up to four channels
Independent 8, 11.025, 16, 22.05, 32, 44.1,
48, 88.2, and 96 kHz sample rates
16, 20, and 24-bit PCM resolution
Support for quad microphone arrays
S/PDIF OUTPUT
Supports 44.1, 48, 88.2, 96, 176.4, and 192 kHz sample rates
16, 20, and 24-bit data; PCM, AC3
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Digital PCM gain control
DEDICATED AUXILIARY PINS
Stereo CD/auxiliary I/O port w/GND sense
Mono out pin for internal speakers or telephony
ENHANCED FEATURES
Three stereo headphones
Microsoft Vista Premium logo for desktop
95 dB audio outputs, 90 dB audio inputs
Internal 32-bit arithmetic for greater accuracy
Impedance and presence detection on all jacks
Retaskable jacks
Four independent microphone bias pins
Digital and analog PCBeep
C/LFE channel swapping
Two general-purpose digital I/O (GPIO) pins
Advanced power management modes
48-lead, Pb-free LFCSP_VQ package
S /P D IF Tx
S/P DIF O UT
D IG IT A L
PCBEEP
AD1987
DAC3
DAC2
H
D DAC1
A
U DAC0
D
I
O
I
N
T
E GPIO
R
F
A
C
E
PORT F
PORT G
PORT D
PORT H
MONO OUT
PORT E
PORT A
PORT B
PORT C
ADC1
ADC0
Figure 1. AD1987 Block Diagram
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. Trademarks and
registered trademarks are the property of their respective owners.
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 ©2007 Analog Devices, Inc. All rights reserved.



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AD1987 pdf
AD1987
CONTENTS
General Description ................................................. 3
AD1987 Specifications .............................................. 4
Test Conditions .................................................... 4
Performance ........................................................ 4
General Specifications ............................................ 4
HD–Audio Link Specification .................................. 7
Power Down States ............................................... 7
Absolute Maximum Ratings ....................................... 8
ESD Sensitivity ..................................................... 8
Environmental Conditions ...................................... 8
Pin Configuration and Function Descriptions ................. 9
HD Audio Widgets ................................................ 12
AD1987 HD Audio Parameters ................................. 13
Outline Dimensions ............................................... 17
Ordering Guide ..................................................... 17
REVISION HISTORY
5/07–Rev 0: Initial version
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Rev. 0 | Page 2 of 18 | May 2007



Part Number AD1987
Description HD Audio Codec
Maker Analog Devices - Analog Devices
Total Page 18 Pages
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