Philips Semiconductors
Digital audio input/output circuit (DAIO)
Product specification
TDA1315H
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.
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.
In the receive mode, the device adjusts automatically to
one of the three standardized sample frequencies
(32, 44.1 or 48 kHz), decodes the input signal and
separates audio and control data. A clock signal of either
256 or 384 times the sample frequency is generated to
serve as a master clock signal in digital audio systems.
In the transmit mode, the device multiplexes the audio
control and user data and encodes it for subsequent
transmission via a cable or optical link.
ORDERING INFORMATION
TYPE
NUMBER
TDA1315H
NAME
QFP44
PACKAGE
PIN POSITION
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10 × 10 × 1.75 mm
VERSION
SOT307-2
1995 Jul 17
2