WM8770

Features: • Audio Performance− 106dB SNR ('A' weighted @ 48kHz) DAC − 102dB SNR ('A' weighted @ 48kHz) ADC• DAC Sampling Frequency: 8KHz 192kHz• ADC Sampling Frequency: 8KHz 96kHz• 3-Wire SPI or CCB MPU Serial Control Interface• Master or Slave Clocking ...

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WM8770 Picture
SeekIC No. : 004546203 Detail

WM8770: Features: • Audio Performance− 106dB SNR ('A' weighted @ 48kHz) DAC − 102dB SNR ('A' weighted @ 48kHz) ADC• DAC Sampling Frequency: 8KHz 192kHz• ADC Sampling Frequency...

floor Price/Ceiling Price

Part Number:
WM8770
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/3/28

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Product Details

Description



Features:

• Audio Performance
  − 106dB SNR ('A' weighted @ 48kHz) DAC
  − 102dB SNR ('A' weighted @ 48kHz) ADC
• DAC Sampling Frequency: 8KHz 192kHz
• ADC Sampling Frequency: 8KHz 96kHz
• 3-Wire SPI or CCB MPU Serial Control Interface
• Master or Slave Clocking Mode
• Programmable Audio Data Interface Modes
  − I2S, Left, Right Justified or DSP
  − 16/20/24/32 bit Word Lengths
• Four Independent stereo DAC outputs with independent analogue and digital volume controls
• Analogue Bypass Path Feature
• Six channel selectable AUX input to the volume controls
• Eight stereo ADC inputs with analogue gain adjust from +19dB to 12dB in 1dB steps
• 2.7V to 5.5V Analogue, 2.7V to 3.6V Digital supply Operation
• 5V tolerant digital inputs



Application

• Surround Sound AV Processors and Hi-Fi systems
• Automotive Audio



Pinout

  Connection Diagram


Specifications

CONDITION
MIN
MAX
Digital supply voltage
-0.3V
+3.63V
Analogue supply voltage
-0.3V
+7V
Voltage range digital inputs (DI, CL, CE & RESETB)
DGND -0.3V
+7V
Voltage range digital inputs (MCLK, DIN[3:0], ADCLRC, DACLRC &
BCLK)
DGND -0.3V
DVDD + 0.3V
Voltage range analogue inputs
AGND -0.3V
AVDD +0.3V
Master Clock Frequency
37MHz
Operating temperature range, TA
-25°C
+85°C
Storage temperature
-65°C
+150°C



Description

The WM8770 is a high performance, multi-channel audio codec. The WM8770 is ideal for surround sound processing applications for home hi-fi, automotive and other audio visual equipment.

A stereo 24-bit multi-bit sigma delta ADC is used with an eight stereo channel input selector. Each channel has analogue domain mute and programmable gain control.Digital audio output word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported.

Four stereo 24-bit multi-bit sigma delta DACs of the WM8770 are used with oversampling digital interpolation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 192kHz are supported. Each DAC channel has independent analogue volume and mute control, with a set of input multiplexors allowing selection of an external 3 channel stereo analogue input into these volume controls.

The audio data interface supports I2S, left justified, right justified and DSP digital audio formats.

The WM8770 is controlled via a 3 wire serial interface. The interface provides access to all features including channel selection, volume controls, mutes, de-emphasis and power management facilities. The device is available in a 64-pin TQFP package.




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