4112NH3 Datasheet, PDF (1/2 Pages) ebm-papst – DC axial compact fan

AD1984A SoundMAX HD Audio Codec With 4 DACs,
4 ADCs, SPDIF Out
Features
2 stereo headphone amplifiers
Line outputs and inputs
Analog microphone inputs
Retaskable ports
192 kHz DACs/ADCs
– 2 independent stereo DAC/ADC
pairs
– Simultaneous record of 2 stereo
channels
– Simultaneous playback of 2 stereo
channels
– All independent sample rates, 8
kHz through 192 kHz
– 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
– All sample rates, 8 kHz through
192 kHz
– 16-, 20-, and 24-bit resolution
– Digital PCM gain control
S/PDIF Output
– Supports 44.1 Hz through 192 kHz
sample rates
– 16-, 20-, and 24-bit data; PCM and
AC3 formats
– Digital PCM gain control
Auxiliary Pins
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
Security feature prevents
unauthorized recording
48-lead, RoHS compliant QFN
package
Software
Voice input enhancements
Output enhancements
Applications
Embedded Audio
Point Of Sale Systems
Overview
The AD1984A audio codec and software provide superior high definition audio quality
and performance. The AD1984A has two 192 kHz DAC pairs, two 192 kHz ADC pairs, an
S/PDIF output, a 2-channel digital microphone interface, and digital and analog PCBeep.
These features make the AD1984A the right choice for embedded systems where
performance is key. The AD1984A is available in a 48-lead, RoHS compliant lead frame
chip scale package in both reels and trays.
Block Diagram
S/PDIF Rx
S/PDIF Tx
S/PDIF Tx
S/PDIF IN
S/PDIF OUT 2 (HDMI)
S/PDIF OUT 1
Digital and
Analog
PCBeep
HD
Audio
Interface
DAC3
DAC2
DAC1
DAC0
GPIO
and
EAPD
ADC2
ADC1
ADC0
Σ
Σ
Σ
Σ
Σ
Σ
Σ
Σ
Σ
Port F
Port G
Port D
MONO OUT
Port E
Port A
Port B
Port C
Digital
Microphone
DM_DATA
DM_CLK
Part Number AD1984A
Description SoundMAX HD Audio
Codec