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AD1888 Datasheet

  • AD1888

  • AC 97 SoundMAX Codec

  • 36頁

  • AD

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a
FEATURES
AC 鈥?7 2.3 COMPATIBLE FEATURES
6 DAC Channels for 5.1 Surround
90 dB Dynamic Range
20-Bit PCM DACs
S/PDIF Output
Integrated Stereo Headphone Amplifiers
Phone, Aux, and Line-In
High Quality CD Input
Selectable MIC Input
Mono Output
External Amplifier Power-Down Control
Double Rate Audio (f
S
= 96 kHz)
Power Management Modes
48-Lead LQFP and 48-Lead LFCSP Packages
AC 鈥?7 SoundMAX Codec
AD1888
廬
ENHANCED FEATURES
Selectable Front and Rear MIC Inputs
with Preamp
Integrated PLL for System Clocking
Crystal-Free Operation
Variable Sample Rate 7 kHz to 96 kHz
Jack Sense (Auto Topology Switching)
Software Controlled VREF_OUT for MIC Bias
Software Enabled Outputs for Jack Sharing
Auto Down-Mix and Channel Spreading Modes
FUNCTIONAL BLOCK DIAGRAM
MIC1
MIC2
PHONE_IN
CD_L
CD_R
AUX_L
AUX_R
LINE_IN_L
LINE_IN_R
AD1888
G
XTAL_IN
XTAL_OUT
PLL
DIFF
AMP
G
M
16-BIT -
ADC
G
M
16-BIT -
ADC
ADC
SLOT
LOGIC
ID0
ID1
AC '97 INTERFACE
RESET
SYNC
GA
M
GA
M
GA
M
GA
M
GA
M
GA
GA
M
M
AC '97
CONTROL
REGISTERS
GA
M
GA
MONO_OUT
M
A
M
BIT_CLK
SDATA_OUT
DAC
SLOT
LOGIC
M
GA
20-BIT -
DAC
SDATA_IN
LINE_OUT_L
MZ
A
LINE_OUT_R
MZ
A
M
GA
20-BIT -
DAC
SPDIF
TX
SPDIF_OUT
M
M
M
M
M
M
20-BIT -
DAC
20-BIT -
DAC
EAPD
M
GA
EAPD
CENTER_OUT
MZ
A
LFE_OUT
MZ
A
M
G = GAIN
A = ATTENUATION
M = MUTE
Z = HIGH-Z
M
GA
GA
JACK
SENSE
LOGIC
VOLTAGE
REFERENCE
JS0
JS1
V
REF
V
REFOUT
SURR_L/
HP_OUT_L
SURR_R/
HP_OUT_R
HP
M
A
20-BIT -
DAC
20-BIT -
DAC
HP
M
A
M
GA
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. 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: 781/326-8703
漏 2003 Analog Devices, Inc. All rights reserved.

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