Technical content and expertise to help jump start your design and get you to production faster.
Start your designDownload our latest development and embedded software solutions.
Expedite time-to-market with our extensive lineup of development kits.
Jump-start your design with proven hardware and software solutions.
Get the latest specifications in our technical documentation library.
Further your technical expertise with online and in-person instruction.
Get comprehensive paid support to fast-track your product development.
Design ideas, demo videos, quality answers. Connect with NXP professionals and other knowledgeable designers ready to help.
Software, documentation, evaluation tools. The resources to build comprehensive solutions and accelerate your time to market.
Access our design resource libraryWe're always looking for passionate and talented people to work with us.
Join our teamArchived content is no longer updated and is made available for historical reference only.
The UDA1355H is a single-chip IEC 60958 decoder and encoder with integrated stereo digital-to-analog converters and analog-to-digital converters employing bitstream conversion techniques.
The UDA1355H has a selectable one-of-four SPDIF input (accepting level I, II and III timing) and one SPDIF output which can generate level II output signals with CMOS levels. In microcontroller mode the UDA1355H offers a large variety of possibilities for defining signal flows through the IC, offering a flexible analog, digital and SPDIF converter chip with possibilities for off-chip sound processing via the digital input and output interface.
A lock indicator is available on pin LOCK when the IEC 60958 decoder and the clock regeneration mechanism is in lock. By default the DAC output and the digital data interface output are muted when the decoder is not in lock.
The UDA1355H contains two clock systems which can run at independent frequencies, allowing to lock-on to an incoming SPDIF or digital audio signal, and in the mean time generating a stable signal by means of the crystal oscillator for driving, for example, the ADC or SPDIF output signal.
Using the crystal oscillator (which requires a 12.288 MHz crystal) and the on-chip low jitter PLL, all standard audio sampling frequencies (fs= 32, 44.1 and 48 kHz including half and double these frequencies) can be generated.
1.1 General
1.2 Control
1.3 IEC 60958 input
1.4 IEC 60958 output
1.5 Digital I/O interface
1.6 ADC digital sound processing
1.7 DAC digital sound processing
1.1 General
1.2 Control
1.3 IEC 60958 input
1.4 IEC 60958 output
1.5 Digital I/O interface
1.6 ADC digital sound processing
1.7 DAC digital sound processing