Overview
The PCM5102APW is a high-performance stereo digital-to-analog converter (DAC) produced by Texas Instruments. It is part of the PCM510xA family, which utilizes advanced segment-DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. This device is packaged in a 20-pin TSSOP (Thin Shrink Small Outline Package) and is designed for single-supply operation, supporting both 1.8 V and 3.3 V digital inputs and a 3.3 V analog supply voltage.
The PCM5102APW features Texas Instruments' DirectPath™ charge-pump technology, which provides 2.1-V RMS ground-centered outputs, eliminating the need for DC blocking capacitors and external muting circuits. The integrated high-performance audio PLL with BCK reference generates the SCK internally, reducing system EMI and the need for a master clock.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | PCM5102APW |
| Package Type | 20-TSSOP (Thin Shrink Small Outline Package) |
| Pins | 20 |
| Operating Temperature Range (°C) | -25 to 85 |
| Resolution | 16, 24, 32 bits |
| Sampling Rate (Max) | 384 kHz |
| DAC Channels | 2 (Stereo) |
| DAC SNR (Typ), dB | 112 dB |
| Supply Voltage | 3.3 V (Analog), 1.8 V or 3.3 V (Digital) |
| Output Type | 2 Voltage Outputs |
| Load Impedance | Down to 1 kΩ per pin |
| RoHS Compliance | Yes |
Key Features
- Ultra Low Out-of-Band Noise: Up to 20 dB lower out-of-band noise compared to conventional switched capacitor DAC architectures, reducing EMI and aliasing in downstream amplifiers/ADCs.
- Integrated High-Performance Audio PLL: Generates SCK internally using the BCK reference, allowing a 3-wire I2S connection and reducing system EMI.
- Direct Line Level 2.1-V RMS Output: No DC blocking capacitors required; supports loads down to 1 kΩ per pin.
- Intelligent Muting System: Soft up or down ramp and analog mute for 120-dB mute SNR.
- Accepts Various Audio Data Formats: Supports 16-, 24-, and 32-bit audio data; PCM data formats include I2S and Left-Justified.
- Automatic Power-Save Mode: Activates when LRCK and BCK are deactivated.
- Failsafe LVCMOS Digital Inputs: 1.8 V or 3.3 V compatible.
- Simple Configuration Using Hardware Pins: Easy setup and configuration.
- Single-Supply Operation: Supports both 1.8 V and 3.3 V digital inputs and a 3.3 V analog supply voltage.
- AEC-Q100 Qualified: Suitable for automotive applications.
Applications
The PCM5102APW is suitable for a variety of high-performance audio applications, including:
- Professional Audio Equipment: Mixing consoles, audio interfaces, and digital audio workstations.
- Consumer Electronics: High-end home audio systems, soundbars, and wireless speakers.
- Automotive Systems: In-car audio systems, given its AEC-Q100 qualification.
- Industrial and Medical Devices: Any application requiring high-fidelity audio output with low noise and high dynamic range.
Q & A
- What is the maximum sampling rate of the PCM5102APW?
The maximum sampling rate is 384 kHz.
- What are the supported audio data formats for the PCM5102APW?
The device supports 16-, 24-, and 32-bit audio data in I2S and Left-Justified formats.
- Does the PCM5102APW require DC blocking capacitors on the output?
No, the DirectPath™ charge-pump technology eliminates the need for DC blocking capacitors.
- What is the typical signal-to-noise ratio (SNR) of the PCM5102APW?
The typical SNR is 112 dB.
- What is the minimum load impedance supported by the PCM5102APW?
The device supports loads down to 1 kΩ per pin.
- Is the PCM5102APW RoHS compliant?
Yes, the device is RoHS compliant.
- What are the operating temperature ranges for the PCM5102APW?
The operating temperature range is -25°C to 85°C.
- Does the PCM5102APW have an integrated PLL?
Yes, it has an integrated high-performance audio PLL that generates SCK internally using the BCK reference.
- What is the power-save mode of the PCM5102APW?
The device enters an automatic power-save mode when LRCK and BCK are deactivated.
- Is the PCM5102APW suitable for automotive applications?
Yes, it is AEC-Q100 qualified, making it suitable for automotive systems.
