PCM1798 123dB SNR Stereo DAC (H/W Control) | TI.com

PCM1798 (ACTIVE)

123dB SNR Stereo DAC (H/W Control)

123dB SNR Stereo DAC (H/W Control) - PCM1798
 

Description

The PCM1798 device is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters (DACs) and support circuitry in a small 28-lead SSOP package. The data converters use TI’s advanced segment DAC architecture to achieve excellent dynamic performance and improved tolerance to clock jitter. The PCM1798 device provides balanced current outputs, allowing the user to optimize analog performance externally. Sampling rates up to 200 kHz are supported.

Features

  • 24-Bit Resolution
  • Analog Performance:
    • Dynamic Range: 123 dB
    • THD+N: 0.0005%
  • Differential Current Output: 4 mAp-p
  • 8× Oversampling Digital Filter:
    • Stop-Band Attenuation: –98 dB
    • Pass-Band Ripple: ±0.0002 dB
  • Sampling Frequency: 10 kHz to 200 kHz
  • System Clock: 128, 192, 256, 384, 512, or 768 fS
    With Autodetect
  • Accepts 16- and 24-Bit Audio Data
  • PCM Data Formats: Standard, I2S, and Left-
    Justified
  • Interface Available for Optional 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-Lead SSOP Package
  • Pin Assignment Compatible With PCM1794

View more

Parametrics Compare all products in Audio DACs

 
DAC Channels
Analog Inputs
Analog Outputs
DAC SNR (Typ) (dB)
Sampling Rate (Max) (kHz)
Control Interface
Resolution (Bits)
Architecture
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
PCM1798 PCM1792A PCM1794A PCM1795
2     2     2     2    
0     0     0     0    
2     2     2     2    
123     127     127     123    
192     192     192     200    
H/W     SPI
I2C    
H/W     SPI
I2C
TDMCA    
24     24     24     32    
Advanced Segment     Advanced Segment     Advanced Segment     Advanced Segment    
28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)     28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)     28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)     28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)    
2.78 | 1ku     7.64 | 1ku     7.08 | 1ku     2.90 | 1ku    

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