ADAV400_15 Datasheet, PDF (1/36 Pages) Analog Devices – Audio Codec with Embedded SigmaDSP Processor

Audio Codec with
Embedded SigmaDSP Processor
ADAV400
FEATURES
Fully programmable audio digital signal processing (DSP) for
enhanced sound processing
Scalable digital audio delay line
Pool of 400 ms @ 48 kHz (200 ms for stereo channel)
High performance, integrated analog-to-digital converters
(ADCs) and digital-to-analog converters (DACs)
1 stereo analog input (ADC)
4 stereo analog inputs with mux-to-stereo ADC
4 stereo (8-channel) analog outputs (DACs)
Dedicated headphone output with integrated amplifier
Multichannel digital I/O
8-channel I²S input and output modes
8- and 16-channel TDM input and output modes
2-channel (1 stereo) asynchronous I²S input with
integrated sample rate converter (SRC), supporting
sample rates from 5 kHz to 50 kHz
Features SigmaStudio™, a proprietary graphical
programming tool for fast development of custom
signal flows
Includes various third-party audio algorithms
I²C control interface
Operates from 3.3 V (analog), 1.8 V (digital core),
3.3 V (digital interface)
Features on-chip regulator for single 3.3 V operation
80-lead LQFP (14 mm × 14 mm)
Temperature range: 0°C to 70°C
APPLICATIONS
ATV and AV audio applications
TV audio processing
Set-top box (STB)
HTiB
General audio enhancement
FUNCTIONAL BLOCK DIAGRAM
ADAV400
MCLKI
MCLKO
SCL
SDA
AD0
BCLK0
LRCLK0
SDIN0
SDIN1
SDIN2
SDIN3
AINL1
AINR1
AINL4
AINR4
PLL
SYSTEM
CLOCKS
I²C INTERFACE
SRC
ASYNCHRONIZE
DIGITAL INPUT
SYNCHRONIZE
MULTICHANNEL
DIGITAL INPUT
ADC
PROGRAMMABLE
AUDIO
PROCESSOR
CORE
A–V
SYNC DELAY
MEMORY
Figure 1.
MULTICHANNEL
DIGITAL OUTPUTS
DAC
DAC
DAC
DAC
SDO0
SDO1
SDO2
SDO3
LRCLK1
BCLK1
VOUT1
VOUT2
VOUT3
VOUT4
HPOUTL
HPOUTR
AUXL1
AUXR1
AUXL2
AUXR2
Rev. A
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