SRC4193 High-End Sample Rate Converter |

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High-End Sample Rate Converter



The SRC4192 and SRC4193 devices are asynchronous, sample-rate converters designed for professional and broadcast audio applications. The SRC4192 and SRC4193 devices combine a wide input-to-output sampling ratio with outstanding dynamic range and ultra-low distortion. Input and output serial ports support standard audio formats, as well as a Time Division Multiplexed (TDM) mode. Flexible audio interfaces allow the SRC4192 and SRC4193 devices to connect to a wide range of audio data converters, digital audio receivers and transmitters, and digital signal processors.

The SRC4192 device is a standalone, pin-programmed device, with control pins for mode, data format, mute, bypass, and low group-delay functions. The SRC4193 device is a software-controlled device featuring a serial peripheral interface (SPI) port, which is utilized to program all functions through the internal control registers.

The SRC4192 and SRC4193 devices can operate from a single 3.3-V power supply. A separate digital I/O supply (VIO) operates over the 1.65-V to 3.6-V supply range, allowing greater flexibility when interfacing to current and future generation signal processors and logic devices. Both devices are available in a 28-pin SSOP package.


  • Automatic Sensing of the Input-to-Output
    Sampling Ratio
  • Wide Input-to-Output Sampling Range: 16:1 to
  • Supports Input and Output Sampling Rates Up to
    212 kHz
  • Dynamic Range: 144 dB (–60-dbFS Input, BW =
    20 Hz to fS/2, A-Weighted)
  • THD+N: –140 dB (0-dbFS Input, BW = 20 Hz to
  • Attenuates Sampling and Reference Clock Jitter
  • High-Performance, Linear-Phase Digital Filtering
    with Stop Band Attenuation Greater than 140 dB
  • Flexible Audio Serial Ports:
    • Master or Slave-Mode Operation
    • Supports I2S, Left-Justified, Right-Justified,
      and TDM Data Formats
    • Supports 16, 18, 20, or 24-Bit Audio Data
    • TDM Mode Allows Daisy-Chaining of up to
      Eight Devices
  • Supports 24-, 20-, 18-, or 16-Bit Input and Output
    Data: All Output Data is Dithered from the Internal
    28-Bit Data Path
  • Low Group Delay Option for Interpolation Filter
  • Direct Downsampling Option for Decimation Filter
    (SRC4193 Only)
  • SPI Port Provides Access to Internal Control
    Registers (SRC4193 Only)
  • Soft Mute Function
  • Bypass Mode
  • Programmable Digital Output Attenuation
    (SRC4193 Only); 256 Steps: 0 dB to –127.5 dB,
  • Power Down Mode
  • Operates From a Single 3.3-V Power Supply
  • Small 28-Pin SSOP Package
  • Pin Compatible with the AD1896 (SRC4192 Only)


Compare all products in Sample rate converters Email Download to Excel
Part number Order Number of SRC channels Control mode Audio data format Dynamic range (dB) THD+N (dB) Digital audio interface Control interface Digital supply (up to 5 V) (V) Power supply (V) Operating temperature range (C) Rating
SRC4193 Order now 2     SW (SPI)     Normal
144     -140     I2S
SPI     3 - 3.6     3.3     -40 to 85     Catalog    
SRC4190 Order now 2     H/W     Normal
128     -125     I2S
H/W     3 - 3.6     3.3     -40 to 85     Catalog    
SRC4192 Order now 2     H/W     Normal
144     -140     I2S
H/W     3 - 3.6     3.3     -40 to 85     Catalog