Описание
The WM8788 is a high performance 24-bit stereo ADC designed for LCD televisions, DVD, Blu-Ray and set-top box applications.A stereo pair of analogue inputs is provided; external resistors are used to configure the device for line level inputs at 1Vrms or for higher input signal levels. The hi-fi ADCs output 16, 20 or 24- bit stereo data on the digital audio interface. ADC sample rates from 8kHz to 192kHz are supported; Master Clock (MCLK) ratios of 128fs up to 768fs are possible (fs = sample rate).The digital audio interface operates in Master or Slave modes, and supports Right-justified, Left-justified and I2S modes, selectable using hardware control pins.The WM8788 is powered from a single 3.3V supply rail, connected to the AVDD and REFVDD pins.A power on reset (POR) circuit ensures correct start-up and shut-down. The device is held in reset when MCLK is not present, offering a low-power standby state.The WM8788 is supplied in a 16-pin TSSOP package.
- Hi-fi audio ADC
- 106dB SNR (‘A’ weighted
- -91dB THD (-1dBFS output)
- Sample rates 8kHz to 192kHz
- 2 analogue audio inputs
- Support for line level inputs >1Vrms
- Digital audio interface
- Master or Slave operation
- 16, 20 or 24-bit data format
- Right-justified, Left-justified, I2S modes
- Wide range of master clock (MCLK) rates
- 128fs, 192fs, 256fs, 384fs, 512fs, 768fs supportt
- Hardware configuration control
- Integrated voltage reference circuits
- Single 3.3V supply
- 16-pin TSSOP package
