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.