• - 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 SRC4184 is a four-channel, asynchronous sample rate converter (ASRC), designed for professional and broadcast audio applications. The SRC4184 combines a wide input-to-output sampling ratio with outstanding dynamic range and ultra low distortion. The input and output serial ports support the most common audio data formats, as well as a time division multiplexed (TDM) format. This allows the SRC4184 to interface to a wide range of audio data converters, digital audio receivers and transmitters, and digital signal processors.

The SRC4184 may be operated in Hardware mode as a standalone pin-programmed device, with dedicated control pins for serial port mode, audio data format, soft mute, bypass, and digital filtering functions.

特性

• AUTOMATIC SENSING OF INPUT-TO-OUTPUT SAMPLING RATIO
• WIDE INPUT-TO-OUTPUT SAMPLING RANGE: 16:1 to 1:16
• SUPPORTS INPUT AND OUTPUT SAMPLING RATES UP TO 212kHz
• DYNAMIC RANGE: 128dB (–60dbFS Input, BW = 20Hz to f_s/2, A-Weighted)
• THD+N: –125dB (0dbFS Input, BW = 20Hz to f_s/2)
• 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
  • TDM Mode Allows Daisy-Chaining of Up to Four Devices
• SUPPORTS 24-, 20-, 18-, or 16-BIT INPUT AND OUTPUT DATA
  • All Output Data is Dithered from the Internal 28-Bit Data Path
• SERIAL PERIPHERAL INTERFACE (SPI)™ PORT SUPPORTS REGISTER READ AND WRITE OPERATIONS IN SOFTWARE MODE
• BYPASS MODE
  • Routes Input Port Data Directly to the Output Port
• FOUR GROUP DELAY OPTIONS FOR THE INTERPOLATION FILTER
• DIRECT DOWNSAMPLING OPTION FOR THE DECIMATION FILTER
• DIGITAL DE-EMPHASIS FILTER
  • User-Selectable for 32kHz, 44.1kHz, and 48kHz Sampling Rates
• SOFT MUTE FUNCTION