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AD1886A Datasheet

  • AD1886A

  • AC’97 SoundMAX Codec

  • 276.33KB

  • 28頁

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a
AC鈥?7 2.1 FEATURES
Variable Sample Rate Audio
Multiple Codec Configuration Options
External Audio Power-Down Control
AC鈥?7 FEATURES
AC鈥?7 2.2 Compliant
Greater than 90 dB Dynamic Range
Stereo Headphone Amplifier
Multibit - Converter Architecture for Improved S/N
Ratio Greater than 90 dB
16-Bit Stereo Full-Duplex Codec
Four Analog Line-Level Stereo Inputs for:
LINE-IN, CD, VIDEO, and AUX
Two Analog Line-Level Mono Inputs for Speakerphone
and PC BEEP
Mono MIC Input w/Built-In 20 dB Preamp, Switchable
from Two External Sources
High-Quality CD Input with Ground Sense
AC鈥?7 SoundMAX Codec
AD1886A
廬
Stereo Line Level Outputs
Mono Output for Speakerphone or Internal Speaker
Power Management Support
48-Terminal LQFP Package
ENHANCED FEATURES
20-Bit SPDIF Output w/32 kHz, 44.1 kHz, and 48 kHz
Symbol Rates
Full Duplex Variable Sample Rates from 7040 Hz to
48 kHz with 1 Hz Resolution
Jack Sense Pins Provide Automatic Output Switching
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 Master Volume Control
Extended 6-Bit Headphone Volume Control
Digital Audio Mixer Mode
Phat鈩?Stereo 3D Stereo Enhancement
FUNCTIONAL BLOCK DIAGRAM
ID0
ID1
JS
SPDIF
V
REFOUT
MIC1
MIC2
LINE
AUX
CD
VIDEO
PHONE_IN
0dB/
20dB
VREF
CHIP SELECT
JACK SENSE
AD1886A
SPDIF
OUT
SELECTOR
PGA
16-BIT
- A/D
CONVERTER
PGA
16-BIT
- A/D
CONVERTER
RESET
SYNC
MONO_OUT
MV
G
A
M
G
A
M
G
A
M
G
A
M
G
A
M
G
A
M
G
A
M
AC LINK
SAMPLE
RATE
GENERATORS
BIT_CLK
HP_OUT_L
MV
PHAT
STEREO
SDATA_OUT
16-BIT
- D/A
CONVERTER
LINE_OUT_L
MV
SDATA_IN
LINE_OUT_R
MV
PHAT
STEREO
A
M
G = GAIN
A = ATTENUATE
M = MUTE
G
A
M
16-BIT
- D/A
CONVERTER
HP_OUT_R
MV
OSCILLATOR
PC_BEEP
XTAL_OUT
XTAL_IN
SoundMAX is a registered trademark and Phat is a 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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