AD1981A Analog Devices, AD1981A Datasheet
AD1981A
Manufacturer Part Number
AD1981A
Description
AD1981A AC'97 Soundmax Codec
Manufacturer
Analog Devices
Datasheet
1.AD1981A.pdf
(24 pages)
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LINE_OUT_R
LINE_OUT_L
MONO_OUT
HP_OUT_R
HP_OUT_L
PHONE_IN
CD_GND
LINE_IN
MIC_IN
CD_R
CD_L
AUX
a
SoundMAX is a registered trademark of Analog Devices, Inc.
KEY:
G = GAIN
A = ATTENUATE
M = MUTE
AD1981A
HP
HP
DIFF AMP
CD
M
M
M
M
M
A
A
A
A
A
MIC PREAMP
G
GA
M
GA
M
FUNCTIONAL BLOCK DIAGRAM
GA
M
GA
M
M
GA
M
GA
M
GA
M
GA
M
M
VREF
JACK SENSE
M
M
G
G
G
G
CONTROL
JS0
ANALOG
LOGIC
MUTE
AC ‘97 SoundMAX
V
GA
GA
REF
M
M
M
M
G
JS1
A/D SAMPLE RATE
16-BIT - A/D
16-BIT - A/D
16-BIT - A/D
16-BIT - A/D
20-BIT - D/A
20-BIT - D/A
CONVERTER
CONVERTER
CONVERTER
CONVERTER
CONVERTER
CONVERTER
GENERATOR
AC ’97 CONTROL REGISTERS
V
REFOUT
EQ COEFF STORAGE
EAPD
EAPD
D/A SAMPLE RATE
XTL_OUT
SPKR
SPKR
XTAL OSCILLATOR
EQ
EQ
GENERATOR
GENERATOR
PLL CLOCK
AD1981A
XTL_IN
®
Codec
LINK PORT/
SPDIF
SPDIF
ID SELECT
ID1
ID0
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