AD1984A Datasheet, PDF (1/20 Pages) Analog Devices – High Definition Audio SoundMAX Codec

High Definition Audio
SoundMAX Codec
AD1984A
FEATURES
Microsoft Vista Premium Logo for desktop
96+ dB audio outputs, 90 dB audio inputs
WLP 3.0 and 4.0
Security feature prevents unauthorized recording
2 stereo headphone amplifiers
Internal 32-bit arithmetic for greater accuracy
Impedance and presence detection on all jacks
Full analog mixer with DAC inputs
3 independent microphone bias pins
Digital and analog PCBeep
3 general-purpose digital I/O (GPIO) pins
3.3 V analog supply voltage
1.7 V to 1.9 V or 3.3 V digital supply voltages
1.5 V or 3.3 V HD Audio link signaling voltage
Advanced power management modes
48-lead, RoHS compliant LFCSP_VQ package
192 kHz DACs/ADCs
2 independent stereo DAC/ADC pairs
Simultaneous record of 2 stereo channels
Simultaneous playback of 2 stereo channels
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
16-, 20-, and 24-bit resolution
Selectable stereo mixer on outputs
STEREO DIGITAL MICROPHONE INTERFACE
Two 192 kHz digital microphone channels
Supports 1 or 2 microphones per pin
Selectable bit clock rates of 1.5 MHz, 2.0 MHz, and 3.0 MHz
Mono and stereo array support
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
16-, 20-, and 24-bit resolution
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 and AC3 formats
Digital PCM gain control
AUXILIARY PINS
Stereo CD/auxiliary I/O port with ground sense
Stereo auxiliary/dock I/O port
Mono out pin for internal speakers or telephony
H
DAC1
D
DAC0
A
U
D
I
S/PDIF
O
I
N
T
DIGITAL
E
PCBEEP
R
F
A
C
ADC0
E
ADC1
AD1984A
⌺
HP
⌺
HP
⌺
⌺
⌺
⌺
PORT A
PORT D
MONO OUT
PORT E
PORT F
PCBEEP
PORT B
PORT C
DIGITAL
MICROPHONE
DM_1/2
DM_2
DM_CLK
Figure 1. Functional Block Diagram
Rev. 0
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