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AD1887 Datasheet

  • AD1887

  • AC’97 SoundMAX Codec

  • 150.68KB

  • 16頁

  • AD

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a
AC鈥?7 2.1 FEATURES
Variable Sample Rate Audio
AC鈥?7 FEATURES
AC鈥?7 2.2 Compliant
Greater than 90 dB Dynamic Range
Integrated Stereo Headphone Amplifier
Multibit - Converter Architecture for Improved S/N
Ratio Greater than 90 dB
16-Bit Stereo Full-Duplex Codec
Two Analog Line-Level Stereo Inputs for:
LINE-IN and CD
Mono MIC Input with Built-In Programmable Preamp
High-Quality CD Input with Ground Sense
Power Management Support
48-Terminal TQFP Package
AC鈥?7 SoundMAX
廬
Codec
AD1887
ENHANCED FEATURES
Full Duplex Variable Sample Rates from 7040 Hz to
48 kHz with 1 Hz Resolution
Software-Enabled V
REFOUT
Output for Microphones and
External Power Amp
Split Power Supplies (3.3 V Digital/5 V Analog)
Mobile Low-Power Mixer Mode
Extended 6-Bit Headphone Volume Control
Digital Audio Mixer Mode
FUNCTIONAL BLOCK DIAGRAM
ID0
ID1
AD1887
MIC
MIC
PREAMP
CHIP SELECT
V
REF
V
REFOUT
CD
SELECTOR
LINE_IN
PGA
16-BIT
- A/D
CONVERTER
PGA
16-BIT
- A/D
CONVERTER
RESET
SYNC
GA
M
GA
M
GA
M
GA
M
GA
M
M
GA
SAMPLE
RATE
GENERATORS
AC
LINK
BIT_CLK
SDATA_OUT
16-BIT
- A/D
CONVERTER
SDATA_IN
SELECTOR
HP_OUT_L
HP
M
GA
M
M
M
G = GAIN
A = ATTENUATE
M = MUTE
GA
16-BIT
- A/D
CONVERTER
HP_OUT_R
HP
M
GA
OSCILLATOR
XTL_OUT
XTL_IN
SoundMAX is a registered trademark of Analog Devices, Inc.
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.
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 Analog Devices, Inc., 2001

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