AD1987_15 Datasheet, PDF (1/20 Pages) Analog Devices – High Definition Audio SoundMAX Codec

High Definition Audio
SoundMAX Codec
AD1987
FEATURES
16-, 20-, and 24-bit PCM resolution
3 stereo headphones
Selectable stereo mixer on outputs
Microsoft Vista Premium logo for desktop
FOUR 96 kHz ADCs
95 dB audio outputs, 90 dB audio inputs
2 independent stereo ADC pairs
Internal 32-bit arithmetic for greater accuracy
Simultaneous record of up to 4 channels
Impedance and presence detection on all jacks
Retaskable jacks
4 independent microphone bias pins
Digital and analog PCBeep
C/LFE channel swapping
E 2 general-purpose digital I/O (GPIO) pins
Advanced power management modes
48-lead LFCSP_VQ package
T EIGHT 192 kHz DACs
4 independent stereo DAC pairs
7.1 surround sound or 5.1 stereo out plus independent
headphone
E Independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
sample rates
Independent 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz,
44.1 kHz, 48 kHz, 88.2 kHz, and 96 kHz sample rates
16-, 20-, and 24-bit PCM resolution
Support for quad microphone arrays
S/PDIF OUTPUT
Supports 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and
192 kHz sample rates
16-, 20-, and 24-bit data; PCM, AC3
Digital PCM gain control
DEDICATED AUXILIARY PINS
Stereo CD/auxiliary I/O port w/GND sense
Mono out pin for internal speakers or telephony
L _{S/PDIF Tx}
S/P DIF O UT
D IG IT A L
PCBEEP
AD1987
O _DAC3
DAC2
H
S ^D
DAC1
A
U
DAC0
D
I
O
B _I
N
T
E
G P IO
R
O^F
⌺
PORT F
⌺
PORT G
⌺
PORT D
⌺
PORT H
⌺
MONO OUT
⌺
PORT E
⌺
PORT A
⌺
PORT B
A
C
E
⌺
PORT C
⌺
ADC1
ADC0
Figure 1. AD1987 Block Diagram
Rev. A
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