GENERAL DESCRIPTION

The Digital Audio Input/Output circuit (DAIO) of the TDA1315H is a complete transceiver for biphase-mark

encoded digital audio signals that conform to the SPDIF and“IEC 958”interface standards (consumer mode),

made in the full CMOS-process C200.

FEATURES

• Transceiver for SPDIF and“IEC 958”encoded signals

• High sensitivity input for transformer-coupled links

• TTL-level input for optical links

• Built-in IEC input selector

• Built-in IEC feed-through function

• Automatic sample frequency (fs) detection

• System clock recovery from IEC input signal

• Low system clock drift when IEC input signal is removed

• Error detection and concealment

• PLL lock detection in transmit mode

• Serial audio interface conforms to I2S-bus format

• Auxiliary I2S-bus input for Analog-to-Digital Converter (ADC)

• Audio output selector

• Microcontroller-controlled and stand-alone mode

• 128-byte buffer for user data

• Bytewise exchange of user data with microcontroller

• Decoding of Compact Disc (CD) subcode Q-channel data

• Support for serial copy management system (SCMS)

• Light Emitting Diode (LED) drive capability (sample frequency and error indication)

• Pin-selectable device address for microcontroller interface

• Power-down mode.