Description

The CXD4016R is an IC that processes the transmitted digital signals used for infrared spatial digital audio communication (based on the IEC61603-8-1 standard) in consumer products. This IC contains the digital-to-analog converter (DAC) and a PLL circuit for RF signal. RF signal is processed by digital signal processing, so the operation is stable without any adjustments.

Features

♦ Performs all the transmitted digital signal processing on a single chip

♦ Supports the infrared spatial digital audio communication system formats for consumer uses

♦ Support the three audio sampling frequencies (32kHz, 44.1kHz, 48kHz)

♦ Direct output of RF signals enabled by on-chip DAC

♦ External RAM and PLL circuit not required

< Audio I/F Block >

♦ Interfaces for various audio ADCs

< Parity Generator Block >

♦ Automatic generation of Reed-Solomon parity for the infrared spatial digital audio communication system format

< Modulator Block >

♦ Digital processing throughout enables the transmitted RF signals in the infrared spatial digital audio communication system formats to be processed directly

♦ External analog circuit can be simplified by on-chip digital filter and on-chip DAC for RF signal applications

♦ Generation of subcarrier processed digitally

< Controller Block >

♦ Simple pin setting mode

♦ Serial interface provided by serial bus

< PLL Block >

♦ On-chip analog PLL circuit for generating the clock signals (640fs) required by the infrared spatial digital audio communication system formats