Line Card



【Basic Info】

【Product Feature】

Automatic Sound IF Standard Detection
Dual Headphone Outputs with Integrated Amplifiers
4 Stereo Synchronous Digital I2S Input Channels
1 Stereo Synchronous Digital I2S Output
1 SPDIF input
1 SPDIF output
Operating Temperature Range Industrial:–40°C to +85°C
Audio porcessor bit resolution:28bit
Multichannel ADC bit resolution:24-bit
Multichannel DAC bit resolution:24-bit
Sound IF:NTSC / Worldwide
Delay Memory:200ms


TV Application


multistandard broadcast SIF demodulation and decoding.
The audio processor, by default, loads a dedicated TV audio
flow that incorporates full matrix switching (any input to any
output), automatic volume control that compensates for volume
changes during advertisements or when switching channels,
dynamic bass, a multiband equalizer, and up to 200 ms of stereo
delay memory for audio-video synchronization.
Alternatively, Analog Devices offers an award-winning
graphical programming tool (SigmaStudio™) that allows custom
flows to be quickly developed and evaluated. This allows the
creation of customer-specific audio flows, including the use of
Analog Devices’ library of third-party algorithms.
The analog I/O integrates Analog Devices’ proprietary
continuous-time, multibit Σ-Δ architecture to bring a higher
level of performance to ATV systems, required by third-party
algorithm providers to meet system branding certification. The
analog input is provided by 95 dB dynamic range (DNR) ADCs,
and the analog output is provided by 95 dB DNR DACs.
The main speaker outputs can be supplied as a voltage out from
the integrated DAC channels (ADAV4312 and ADAV4322) or
as a digitally modulated PWM stream to support digital
amplifiers (ADAV4412 and ADAV4422).
The ADAV43x2/ADAV44x2 include multichannel digital inputs
and outputs. In addition, two of the digital input channels can
be routed through integrated sample rate converters (SRC),
which are capable of supporting any arbitrary sample rate from
5 kHz to 50 kHz.