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AD1980 Datasheet

  • AD1980

  • SigmaDSP⑩ 3-Channel, 26-Bit Signal Processing DAC

  • 647.20KB

  • 32頁(yè)

  • AD

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a
FEATURES
AC 鈥?7 2.3 COMPATIBLE FEATURES
6 DAC Channels for 5.1 Surround
S/PDIF Output
Integrated Stereo Headphone Amplifier
Variable Rate Audio
Double Rate Audio (f
S
= 96 kHz)
Greater than 90 dB Dynamic Range
20-Bit PCM DACs
Line-Level Mono 鈥漃hone鈥?Input
High Quality CD Input
Selectable MIC Input with Preamp
AUX and Line_In Stereo Inputs
External Amplifier Power-Down Control
Power Management Modes
48-Lead LQFP Package
AC 鈥?7 SoundMAX Codec
AD1980
廬
ENHANCED FEATURES
Integrated Parametric Equalizer
Stereo MIC Preamp Support
Integrated PLL for System Clocking
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
V
REFOUT
V
REF
VOLTAGE
REFERENCE
XTL_OUT XTL_IN SPDIF
AD1980
MC1
MIC PREAMP
G
G
G
MC2
PHONE_IN
CD_L
CD_GND
CD_R
AUX_L
AUX_R
LINE_IN_L
LINE_IN_R
CD
DIFF AMP
2CMIC
CODEC CORE
PCM L/R
ADC RATE
SPDIF
TX
MS
PLL
RECORD
SELECTOR
ID0
G
M
16-BIT
- ADC
16-BIT
- ADC
ID1
G
M
PCM LFE
DAC RATE
RESET
LFE_OUT
MZ
A
SPRD
M
G
AC '97 INTERFACE
20-BIT
- DAC
DAC
SLOT
LOGIC
SYNC
CENTER_OUT
MZ
A
SPRD
M
G
20-BIT
- DAC
GA
M
M
M
GA
M
GA
M
GA
M
GA
M
GA
M
GA
M
GA
M
M
M
G = GAIN
A = ATTENUATION
M = MUTE
Z = HIGH Z
PCM FRONT
DAC RATE
BITCLK
LINE_OUT_L
MZ
MZ
MZ
A
BYPASS
MONO_OUT
LINE_OUT_R
A
LOSEL
EQ COEF STORAGE
LOSEL
SDATA_OUT
EQ
SDATA_IN
A
M
M
M
M
HPSEL
G
G
20-BIT
- DAC
20-BIT
- DAC
20-BIT
- DAC
20-BIT
- DAC
PCM SURR
DAC RATE
BYPASS
SURR_OUT_L/
HP_OUT_L
HP
M
A
HPSEL
EQ
AC '97
CONTROL
REGISTERS
G
SURR_OUT_R/
HP_OUT_R
HP
M
M
M
G
A
ANALOG MIXING
CONTROL LOGIC
EAPD
JS0
JS1
EAPD
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 companies.
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 2002 Analog Devices, Inc. All rights reserved.

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