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