ADAV803 Audio Codec for Recordable DVD _ BDTIC a Leading Distributor in China

ADAV803 Audio Codec for Recordable DVD

DVD-recordable All formats CD-R/W

The ADAV803 is a stereo audio codec intended for applications such as DVD or CD recorders that require high performance and flexible, cost-effective playback and record functionality. The ADAV803 features Analog Devices, Inc. proprietary, high performance converter cores to provide record (ADC), playback (DAC), and format conversion (SRC) on a single chip. The ADAV803 record channel features variable input gain to allow for adjustment of recorded input levels and automatic level control, followed by a high performance stereo ADC whose digital output is sent to the record interface. The record channel also features level detectors that can be used in feedback loops to adjust input levels for optimum recording. The playback channel features a high performance stereo DAC with independent digital volume control.

The sample rate converter (SRC) provides high performance sample rate conversion to allow inputs and outputs that require different sample rates to be matched. The SRC input can be selected from playback, auxiliary, DIR, or ADC (record). The SRC output can be applied to the playback DAC, both main and auxiliary record channels, and a DIT. Operation of the ADAV803 is controlled via an I2C®-compatible serial interface, which allows the programming of individual control register settings. The ADAV803 operates from a single analog 3.3 V power supply and a digital power supply of 3.3 V with an optional digital interface range of 3.0 V to 3.6 V.

The part is housed in a 64-lead LQFP package and is character-ized for operation over the commercial temperature range of −40°C to +85°C.

Applications

Features and Benefits

Stereo analog-to-digital converter (ADC)
Supports 48 kHz/96 kHz sample rates
102 dB dynamic range
Single-ended input
Automatic level control
Stereo digital-to-analog converter (DAC)
Supports 32 kHz/44.1 kHz/48 kHz/96 kHz/192 kHz sample rates
101 dB dynamic range
Single-ended output
Asynchronous operation of ADC and DAC
Stereo sample rate converter (SRC)
Input/output range: 8 kHz to 192 kHz
140 dB dynamic range
Digital interfaces
Record
Playback
Auxiliary record
Auxiliary playback

S/PDIF (IEC 60958) input and output
Digital interface receiver (DIR)
Digital interface transmitter (DIT)
PLL-based audio MCLK generators
Generates required DVDR system MCLKs
Device control via I2C-compatible serial port
64-lead LQFP package