132dB SNR Highest Performance Stereo DAC (H/W Control)
Product details
Parameters
Package | Pins | Size
Features
- 24-Bit Resolution
- Analog Performance:
- Dynamic Range:
- 132 dB (9 V RMS, Mono)
- 129 dB (4.5 V RMS, Stereo)
- 127 dB (2 V RMS, Stereo)
- THD+N: 0.0004%
- Dynamic Range:
- Differential Current Output: 7.8 mA p-p
- 8× Oversampling Digital Filter:
- Stop-Band Attenuation: –130 dB
- Pass-Band Ripple: ±0.00001 dB
- Sampling Frequency: 10 kHz to 200 kHz
- System Clock: 128, 192, 256, 384, 512, or 768 fS
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
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Description
The PCM1794A device is a monolithic, CMOS-integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28-pin 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 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.
Technical documentation
| Type | Title | Date | |
|---|---|---|---|
| * | Datasheet | PCM1794A 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo Digital-to-Analog Converter datasheet (Rev. B) | Dec. 07, 2015 |
| Application notes | Current-to-voltage converter circuit for audio DACs | Jan. 16, 2019 | |
| Application notes | HiFi Audio Circuit Design | Aug. 23, 2017 | |
| User guides | DEM-PCM1792, DEM-DSD1792, DEM-PCM1794, DEM-DSD1794 EVM User's Guide | Aug. 06, 2003 | |
| Application notes | Dynamic Performance Testing of Digital Audio D/A Converters | Oct. 02, 2000 | |
| Application notes | A Low Noise, Low Distortion Design for Antialiasing and Anti-Imaging Filters | Sep. 27, 2000 | |
| Application notes | THD+N Versus Frequency Characteristics and Spectra of the PCM1717/18/19/20/23/27 | Sep. 27, 2000 |
Design & development
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CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SSOP (DB) | 28 | View options |
Ordering & quality
Support & training
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