• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The SRC4192 and SRC4193 are asynchronous sample rate converters designed for professional and broadcast audio applications. The SRC4192 and SRC4193 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 to connect to a wide range of audio data converters, digital audio receivers and transmitters, and digital signal processors.

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

特性

• AUTOMATIC SENSING OF THE INPUT-TO-OUTPUT SAMPLING RATIO
• WIDE INPUT-TO-OUTPUT SAMPLING RANGE: 16:1 to 1:16
• SUPPORTS INPUT & OUTPUT SAMPLING RATES UP TO 212kHz
• DYNAMIC RANGE: 144dB (–60dbFS input, BW = 20Hz to f_s/2, A-Weighted)
• THD+N: –140dB (0dbFS input, BW =20Hz to f_s/2)
• ATTENUATES SAMPLING AND REFERENCE CLOCK JITTER
• HIGH PERFORMANCE, LINEAR PHASE DIGITAL FILTERING WITH BETTER THAN 140dB OF STOP BAND ATTENUATION
• 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:0dB to –127.5dB,0.5dB/step
• POWER DOWN MODE
• OPERATES FROM A SINGLE +3.3 VOLT POWER SUPPLY
• SMALL 28-LEAD SSOP PACKAGE
• PIN COMPATIBLE WITH THE AD1896 (SRC4192 ONLY)⁽²⁾
• APPLICATIONS