132dB SNR Highest Performance Stereo DAC (S/W Control) - PCM1792A

PCM1792A (ACTIVE)

132dB SNR Highest Performance Stereo DAC (S/W Control)

 

Description

The PCM1792A is a monolithic CMOS integrated circuit that includes stereo digital-to-analog converters 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 PCM1792A provides balanced current outputs, allowing the user to optimize analog performance externally. The PCM1792A accepts PCM and DSD audio data formats, providing easy interfacing to audio DSP and decoder chips. The PCM1792A also interfaces with external digital filter devices (DF1704, DF1706, PMD200). Sampling rates up to 200 kHz are supported. A full set of user-programmable functions is accessible through an SPI or I²C serial control port, which supports register write and readback functions. The PCM1792A also supports the time division multiplexed command and audio (TDMCA) data format.

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%
  • 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-, 20-, and 24-Bit Audio Data
  • PCM Data Formats: Standard, I²S, and Left-Justified
  • DSD Format Interface Available
  • Optional Interface to External Digital Filter or DSP Available
  • TDMCA or Serial Port (SPI/I²C)
  • User-Programmable Mode Controls:
    • Digital Attenuation: 0 dB to –120 dB, 0.5 dB/Step
    • Digital De-Emphasis
    • Digital Filter Rolloff: Sharp or Slow
    • Soft Mute
    • Zero Flag for Each Output
  • Dual Supply Operation:
    • 5-V Analog, 3.3-V Digital
  • 5-V Tolerant Digital Inputs
  • Small 28-Lead SSOP Package
  • APPLICATIONS
    • A/V Receivers
    • SACD Player
    • DVD Players
    • HDTV Receivers
    • Car Audio Systems
    • Digital Multitrack Recorders
    • Other Applications Requiring 24-Bit Audio

View more

Parametrics Compare all products in Audio DAC

 
DACs (#)
# Inputs / # Outputs
DAC SNR (Typ) (dB)
Architecture
Resolution (Bits)
Control Interface
Digital Audio Interface
THD+N(Typ) (%)
Additional Features
Pin/Package
Power Consumption (Typ) (mW)
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Approx. Price (US$)
PCM1792A PCM1794A PCM1795 PCM1796 PCM1798
2    2    2    2    2   
0 / 2    0 / 2    0 / 2    0 / 2    0 / 2   
127    127    123    123    123   
Advanced Segment    Advanced Segment    Advanced Segment    Advanced Segment    Advanced Segment   
24    24    32    24    24   
SPI
I2C   
H/W    SPI
I2C
TDMCA   
SPI
I2C   
H/W   
L
R
I2S
TDMCA
DSD   
L
R
I2S   
L
R
I2S
TDMCA
DSD   
L
R
I2S
TDMCA
DSD   
L
R
I2S   
0.001    0.0005    0.0005    0.0005     
TDMCA/DSD Support      32-Bit Digital Processing    TDMCA/DSD Support    DSD Support   
28SSOP    28SSOP    28SSOP    28SSOP    28SSOP   
205    205      115    115   
Catalog    Catalog    Catalog    Catalog    Catalog   
-25 to 85    -25 to 85    -25 to 85    -25 to 85    -25 to 85   
SSOP    SSOP    SSOP    SSOP    SSOP   
28SSOP: 80 mm2: 7.8 x 10.2(SSOP)    28SSOP: 80 mm2: 7.8 x 10.2(SSOP)    28SSOP: 80 mm2: 7.8 x 10.2(SSOP)    28SSOP: 80 mm2: 7.8 x 10.2(SSOP)    28SSOP: 80 mm2: 7.8 x 10.2(SSOP)   
7.21 | 1ku    7.08 | 1ku    2.90 | 1ku    2.78 | 1ku    2.78 | 1ku   

Featured tools and software