This document is a preliminary specification for the UDA1350AH IEC 958 audio DAC. It provides details on the product's features and characteristics, including general features, control, IEC 958 input, digital output and input interfaces, digital sound processing and DAC.
The Philips UDA1350AH is a single-chip IEC 958 audio decoder with an integrated stereo digital-to-analog converter (DAC) employing bitstream conversion techniques. It features a high-performance architecture that includes an on-chip amplifier for converting IEC 958 input to CMOS levels and supports selectable input channels.
The device offers flexible control options, allowing operation via static pins or the L3 microcontroller interface. Key capabilities include automatic de-emphasis for standard audio sample frequencies (32.0, 44.1, and 48.0 kHz), a soft mute function with cosine roll-off, and an interpolating filter cascade consisting of recursive and FIR filters to generate bitstream data for the DAC.
| Power supply voltage (VDDA, VDDP) | 2.7 to 3.6 V |
|---|---|
| Power consumption (playback mode) | 80 mW |
| Operating temperature range | -40 to +85 °C |
| Total harmonic distortion-plus-noise (THD+N) | -85 dB |
| Signal-to-noise ratio (S/N) | 100 dB |
| Channel separation | -96 dB |
The UDA1350AH is available in a QFP44 plastic quad flat package with 44 leads.
No, the device does not require analog post filtering for its DAC.
Automatic de-emphasis is supported when using IEC 958 input with 32.0, 44.1 and 48.0 kHz audio sample frequencies.
The device can be controlled either by means of static pins or via the L3 microcontroller interface.