描述 Description

The SRC4190 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 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. The SRC4190 is available in an SSOP-28 package.

特性 Features

? Qualified for Automotive Applications
? 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 dBFS Input,BW = 20 Hz to fS/2, A-Weighted)
? THD+N: –125 db (0 dBFS 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 Data
? 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 SSOP-28 Package
? Pin Compatible With the SRC4192, AD1895, and AD1896
? APPLICATIONS
? Digital Mixing Consoles
? Digital Audio Workstations
? Audio Distribution Systems
? Broadcast Studio Equipment
? High-End A/V Receivers
? General Digital Audio Processing