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WM8739

Features: • 90dB SNR ('A' weighted @ 48kHz) ADC• Low Power- 12mW all-on, 1.4mW standby ('L' version)- 41mW all-on, 5.3mW standby (standard version)• Low Supply Voltages- 1.8 3.6V Analogue Supply ('L' version)- 2.7 3.6V Analogue Supply (standard version)- 1.42 3.6V Digital Supp...

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SeekIC No. : 004546185 Detail

WM8739: Features: • 90dB SNR ('A' weighted @ 48kHz) ADC• Low Power- 12mW all-on, 1.4mW standby ('L' version)- 41mW all-on, 5.3mW standby (standard version)• Low Supply Voltages- 1.8 3.6V ...

WM8739 Data Sheet

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Part Number:
WM8739
Supply Ability:
5000

Price Break

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

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Product Details

Description



Features:

• 90dB SNR ('A' weighted @ 48kHz) ADC
• Low Power- 12mW all-on, 1.4mW standby ('L' version)- 41mW all-on, 5.3mW standby (standard version)
• Low Supply Voltages- 1.8 3.6V Analogue Supply ('L' version)- 2.7 3.6V Analogue Supply (standard version)- 1.42 3.6V Digital Supply (both versions)
• Input Volume and Mute Controls
• ADC Sampling Frequency: 8KHz 96KHz
• Selectable ADC High Pass Filter
• 2 or 3-Wire MPU Serial Control Interface
• Programmable Audio Data Interface Modes- I2S, Left, Right Justified or DSP- 16/20/24/32 bit Word Lengths- Master or Slave Clocking Mode
• 20-Pin SSOP or 5x5mm QFN Package Options


Application

• CD, Minidisc and DAT Recorders
• General Purpose Audio Digitisation


Pinout

Connection Diagram


Specifications

CONDITION MIN MAX
Digital supply voltage -0.3V +3.63V
Analogue supply voltage -0.3V +3.63V
Voltage range digital inputs DVSS -0.3V DVDD +0.3V
Voltage range analogue inputs AVDD -0.3V AVDD +0.3V
Master Clock Frequency (see Note 4)   40MHz
Operating temperature range, TA -10°C +70°C
Storage temperature prior to soldering 30°C max / 85% RH max
Storage temperature after soldering -65oC +150oC
Package body temperature (soldering 10 seconds) +240oC
Package body temperature (soldering 2 minutes) +183oC



Description

The WM8739 is a stereo audio ADC. The WM8739 is designed specifically for portable MP3 audio and speech players and recorders. The WM8739 is also ideal for MD,CD-RW machines and DAT recorders.

Stereo line-level audio inputs are provided, along with a mute and volume function, and master or slave mode clocking schemes. The device also has a programmable high pass filter to remove residual DC offsets.

Stereo 24-bit multi-bit sigma delta ADCs of the WM8739 are used with oversampling digital interpolation and digital filters. Digital audio output word lengths from 16-32 bits and sampling rates from 8KHz to 96KHz are supported.

The WM8739 is controlled via a 2 or 3 wire serial interface.The interface provides access to all features including volume controls, mutes, de-emphasis and extensive power management facilities. The device is available in a small 20-pin SSOP package.




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