PCM1794A-Q1
PCM1794A-Q1 is Audio Stereo Digital-to-Analog Converter manufactured by Texas Instruments.
Features
- 1 Qualified for Automotive Applications
- AEC-Q100 Qualified With the Following Results:
- Device Temperature Grade 1:
- 40°C to +125°C Ambient Operating Temperature Range
- Device HBM Classification Level 2
- Device CDM Classification Level C6
- 24-Bit Resolution
- Analog Performance:
- Dynamic Range:
- 132 d B (9 V RMS, Mono)
- 129 d B (4.5 V RMS, Stereo)
- 127 d B (2 V RMS, Stereo)
- THD+N: 0.0004%
- Differential Current Output: 7.8 m A p-p
- 8× Oversampling Digital Filter:
- Stop-Band Attenuation:
- 130 d B
- Pass-Band Ripple: ±0.00001 d B
- Sampling Frequency: 10 k Hz to 200 k Hz
- System Clock: 128, 192, 256, 384, 512, or 768 f S With Autodetect
- Accepts 16-Bit and 24-Bit Audio Data
- PCM Data Formats: Standard, I2S, and Left Justified
- Optional Interface Available to External Digital Filter or DSP
- Digital De-Emphasis
- Digital Filter Rolloff: Sharp or Slow
- Soft Mute
- Zero Flag
- Dual-Supply Operation: 5-V Analog, 3.3-V Digital
- 5-V Tolerant Digital Inputs
- Small 28-Pin SSOP Package
2 Applications
- A/V Receivers
- Automotive Head Units
- Musical Instruments
- Car Audio Systems
- Other Applications Requiring 24-Bit Audio
3 Description
The PCM1794A-Q1 device is a monolithic, CMOSintegrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28pin SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1794A-Q1 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 k Hz are supported.
PART NUMBER...
