®
a
AC’97 SoundMAX Codec
AD1886A
Stereo Line Level Outputs
AC’97 2.1 FEATURES
Mono Output for Speakerphone or Internal Speaker
Power Management Support
48-Terminal LQFP Package
Variable Sample Rate Audio
Multiple Codec Configuration Options
External Audio Power-Down Control
AC’97 FEATURES
ENHANCED FEATURES
AC’97 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
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 VREFOUT 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
High-Quality CD Input with Ground Sense
Phat™ Stereo 3D Stereo Enhancement
FUNCTIONAL BLOCK DIAGRAM
SPDIF
JS
ID1
ID0
VREF
V
REFOUT
AD1886A
SPDIF
OUT
CHIP SELECT
JACK SENSE
MIC1
MIC2
0dB/
20dB
LINE
AUX
CD
16-BIT
⌺-⌬ A/D
CONVERTER
PGA
PGA
16-BIT
⌺-⌬ A/D
CONVERTER
RESET
VIDEO
PHONE_IN
SYNC
SAMPLE
RATE
GENERATORS
MONO_OUT
MV
BIT_CLK
G
A
M
G
G
A
M
G
A
M
G
A
M
G
A
M
⌺
⌺
⌺
A
M
HP_OUT_L
MV
SDATA_OUT
G
16-BIT
⌺-⌬ D/A
CONVERTER
PHAT
STEREO
A
⌺
⌺
⌺
⌺
⌺
LINE_OUT_L
⌺
⌺
MV
M
SDATA_IN
G
A
M
16-BIT
⌺-⌬ D/A
CONVERTER
PHAT
STEREO
⌺
⌺
⌺
⌺
⌺
LINE_OUT_R
MV
MV
⌺
⌺
A
M
G = GAIN
HP_OUT_R
PC_BEEP
A = ATTENUATE
M = MUTE
OSCILLATOR
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, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat
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
Fax: 781/326-8703
www.analog.com
© Analog Devices, Inc., 2001