
1995 Jul 17
2
Philips Semiconductors
Product specification
Digital audio input/output circuit (DAIO)
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 (f
s
) 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 I
2
S-bus format
Auxiliary I
2
S-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
PACKAGE
NAME
PIN POSITION
VERSION
TDA1315H
QFP44
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
×
10
×
1.75 mm
SOT307-2