Overview
The UDA1355H/N2,518, produced by NXP USA Inc., is a single-chip IEC 60958 decoder and encoder. It integrates stereo digital-to-analog converters (DACs) and analog-to-digital converters (ADCs) using bitstream conversion techniques. This component is designed to handle various audio processing tasks, including decoding and encoding of digital audio signals, and it supports multiple audio formats and interfaces.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply | 2.7 to 3.6 | V |
| Package Type | QFP44 | - |
| Package Dimensions | 10 × 10 × 1.75 mm | - |
| Sample Frequencies | 32 kHz, 44.1 kHz, 48 kHz | - |
| Data Path Resolution | 24-bit | - |
| Signal-to-Noise Ratio (SNR) | -97 dB (fs = 48 kHz), -95 dB (fs = 96 kHz) | dB |
| Total Harmonic Distortion + Noise (THD+N) | -85 dB (fs = 48 kHz and 96 kHz at 0 dB) | dB |
| Channel Separation | -100 dB | dB |
| Crystal Frequency | 12.288 MHz | MHz |
| Power Consumption (DAC in Playback Mode) | 74 mW | mW |
Key Features
- Integrated digital interpolator filter and DAC, with no analog post filtering required for DAC.
- Integrated ADC, Programmable Gain Amplifier (PGA), and digital decimator filter.
- Supports I2S-bus, MSB-justified, LSB-justified 16, 18, 20, and 24 bits formats on digital I/O interface.
- Master or slave mode for digital audio data I/O interface.
- Controlled by means of static pins or microcontroller (L3-bus or I2C-bus) interface.
- Selectable one-of-four SPDIF input channels with on-chip amplifier for converting IEC 60958 input to CMOS levels.
- Programmable digital silence detector and noise shaper operating at 64fs or 128fs.
- Left and right volume control, bass boost, treble control, and optional resonant bass boost control in microcontroller mode.
- Mixing possibility of two data streams.
Applications
The UDA1355H/N2,518 is suitable for various audio processing applications, including:
- Digital audio systems requiring IEC 60958 compliance.
- Consumer electronics such as DVD players, CD players, and home theaters.
- Professional audio equipment like mixers and audio interfaces.
- Automotive audio systems.
- Any system needing high-quality stereo audio decoding and encoding with SPDIF interface support.
Q & A
- What is the power supply range for the UDA1355H/N2,518?
The power supply range is 2.7 to 3.6 V.
- What package type is the UDA1355H/N2,518 available in?
The component is available in a QFP44 package.
- What are the supported sample frequencies for the UDA1355H/N2,518?
The component supports sample frequencies of 32 kHz, 44.1 kHz, and 48 kHz.
- What is the resolution of the data path in the UDA1355H/N2,518?
The data path resolution is 24-bit).
- What are the signal-to-noise ratio (SNR) and total harmonic distortion + noise (THD+N) specifications for the UDA1355H/N2,518?
The SNR is -97 dB (fs = 48 kHz) and -95 dB (fs = 96 kHz), and the THD+N is -85 dB at 0 dB for both 48 kHz and 96 kHz sample frequencies).
- How is the UDA1355H/N2,518 controlled?
The component can be controlled by means of static pins or a microcontroller using L3-bus or I2C-bus interface).
- What types of audio interfaces does the UDA1355H/N2,518 support?
The component supports I2S-bus, MSB-justified, LSB-justified 16, 18, 20, and 24 bits formats on digital I/O interface).
- Does the UDA1355H/N2,518 support multiple SPDIF input channels?
Yes, it supports selectable one-of-four SPDIF input channels).
- What are some of the audio processing features of the UDA1355H/N2,518?
The component features left and right volume control, bass boost, treble control, and optional resonant bass boost control in microcontroller mode. It also allows mixing of two data streams).
- What is the typical power consumption of the UDA1355H/N2,518 in DAC playback mode?
The typical power consumption in DAC playback mode is 74 mW).
