WM8781集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

WM8781屬于集成電路（IC）的ADC/DAC-特殊用途。由凌云邏輯制造生產的WM8781ADC/DAC - 特殊用途該產品族中的產品可用于模擬和數字表示的信息轉換，適用于特定用例，或集成了通用數據轉換器中不常見的其他功能。例如針對超聲或汽車雷達應用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

DESCRIPTION

The WM8781 is a high performance, low cost stereo audio ADC designed for recordable media applications.

The device offers stereo line level inputs along with two control input pins (FORMAT, IWL) to allow operation of the audio interface in three industry standard modes. An internal op-amp is integrated on the front end of the chip to accommodate analogue input signals greater than 1Vrms. The device also has a high pass filter to remove residual DC offsets.

FEATURES

? SNR 102dB (‘A’ weighted @ 48kHz)

? THD -90dB (at –1dB)

? Sampling Frequency: 8 – 192kHz

? Master or Slave Clocking Mode

? System Clock (MCLK): 128fs, 192fs, 256fs, 384fs, 512fs, 768fs

? Audio Data Interface Modes

- 16-24 bit I2S, 16-24 bit Left, 16-24 bit Right Justified

? Supply Voltages

- Analogue 2.7 to 5.5V

- Digital core: 2.7V to 3.6V

? 20-lead SSOP package

APPLICATIONS

? Recordable DVD Players

? Personal Video Recorders

? STB

? Studio Audio Processing Equipment