Overview
The PCM5242RHBR is a monolithic CMOS integrated circuit developed by Texas Instruments. It features a stereo digital-to-analog converter (DAC) along with additional support circuitry, all packaged in a compact 32-terminal QFN package. This device utilizes TI’s advanced segment-DAC architecture, which ensures excellent dynamic performance and improved tolerance to clock jitter. The PCM5242 also includes a fully programmable miniDSP core, enabling developers to integrate various filters, dynamic range controls, custom interpolators, and other differentiating features into their products.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Package Type | VQFN-32 | - |
| Operating Temperature Range | -25 to 85 | °C |
| Analog Power Supply Voltage Range | 3.0 to 3.46 | V |
| Digital Power Supply Voltage Range | 1.65 to 1.95 (1.8V), 3.1 to 3.46 (3.3V) | V |
| Master Clock Frequency | Up to 50 MHz | - |
| Output Load Resistance | 2 to 10 kΩ | - |
| Output Load Capacitance | 10 pF | - |
| Operating Junction Temperature Range | -25 to 85 | °C |
Key Features
- Differential DirectPath™ Ground Biased Outputs, eliminating the need for DC blocking capacitors
- Market-Leading Low Out-of-Band Noise
- Selectable Digital-Filter Latency and Performance
- Integrated Negative Charge Pump
- Intelligent Muting System with Soft Up or Down Ramp and Analog Mute for 120dB Mute SNR
- Integrated High-Performance Audio PLL With BCK Reference to Generate SCK Internally
- Accepts 16-, 24-, and 32-Bit Audio Data; PCM Data Formats: I2S, Left-Justified, Right-Justified, TDM
- SPI or I2C Control; Hardware Configuration
- Automatic Power-Save Mode When LRCK And BCK Are Deactivated
- 1.8V or 3.3V Failsafe LVCMOS Digital Inputs
- Single Supply Operation: 3.3V Analog, 1.8V or 3.3V Digital
- Integrated Power-On Reset
Applications
- HiFi Smartphones
- A/V Receivers
- DVD and Blu-ray Players
- HDTV Receivers
Q & A
- What is the package type of the PCM5242RHBR?
The PCM5242RHBR is packaged in a 32-terminal VQFN package.
- What is the operating temperature range of the PCM5242RHBR?
The operating temperature range is -25°C to 85°C.
- What are the supported audio data formats by the PCM5242RHBR?
The device supports 16-, 24-, and 32-Bit audio data in I2S, Left-Justified, Right-Justified, and TDM formats.
- Does the PCM5242RHBR require DC blocking capacitors on the output?
No, the device provides differential DirectPath™ ground biased outputs, eliminating the need for DC blocking capacitors.
- What control interfaces are supported by the PCM5242RHBR?
The device supports SPI, I2C, and hardware control modes.
- What is the purpose of the integrated PLL in the PCM5242RHBR?
The integrated PLL generates the SCK internally using the BCK reference, eliminating the need for an external system clock.
- What is the mute SNR capability of the PCM5242RHBR?
The device features an intelligent muting system with a mute SNR of 120dB.
- Does the PCM5242RHBR have power-saving features?
Yes, the device enters an automatic power-save mode when LRCK and BCK are deactivated.
- What are the digital input voltage levels supported by the PCM5242RHBR?
The device supports 1.8V or 3.3V failsafe LVCMOS digital inputs.
- Is the PCM5242RHBR suitable for use in high-performance audio applications?
Yes, the device is designed for high-performance audio applications with market-leading low out-of-band noise and excellent dynamic performance.
