The SRC4190 device is an asynchronous sample rate converter designed for professional and
broadcast audio applications. The SRC4190 combines a wide input-to-output sampling ratio with
outstanding dynamic range and 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
SRC4190 to connect to a wide range of audio data converters, digital audio receivers and
transmitters, and digital signal processors.
The SRC4190 is a standalone pin-programmed device, with control pins for mode, data
format, mute, bypass, and low group delay functions.
The SRC4190 may be operated from a single 3.3-V power supply. A separate digital I/O
supply (VIO) operates with a 1.65-V to 3.6-V supply, allowing greater flexibility when interfacing
to current and future generation signal processors and logic devices. The SRC4190 is 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 1:16
- Supports Input and Output Sampling Rates up to 212 kHz
- Dynamic Range: 128 dB (–60-dB fS Input, BW = 20 Hz to fS / 2, A-Weighted)
- THD+N: –125 dB (0-dB fS Input, BW = 20 Hz to fS / 2)
- Attenuates Sampling and Reference Clock Jitter
- High-Performance, Linear Phase Digital Filtering
- 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
- All Output Data is Dithered from the Internal 28-Bit Data Path
- Low Group Delay Option for Interpolation Filter
- Soft Mute Function
- Bypass Mode
- Power-Down Mode
- Operates from a Single 3.3-V Power Supply
- Small 28-Pin SSOP Package
- Pin Compatible With the SRC4192, AD1895, and AD1896 U.S. Patent No. 7,262,716 See for details.
| Number of SRC channels | 2 |
| Digital audio interface | I2S, L, R, TDM |
| Dynamic range (dB) | 128 |
| Digital supply (up to 5 V) (V) | 3 - 3.6 |
| THD+N (dB) | -125 |
| Control mode | H/W |
| Power supply (V) | 3.3 |
| Control interface | H/W |
| Audio data format | I2S, Normal, TDM |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 85 |
| Sampling rate (max) (kHz) | 212 |