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WM8785

Features: `SNR 111dB ( 'A' weighted @48kHz )`THD -102dB (at -0.1dB) `Sampling Frequency: 8-192kHz `2 or 3 Wire Microprocessor 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`A TDM bus is s...

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SeekIC No. : 004546215 Detail

WM8785: Features: `SNR 111dB ( 'A' weighted @48kHz )`THD -102dB (at -0.1dB) `Sampling Frequency: 8-192kHz `2 or 3 Wire Microprocessor Control Interface`Master or Slave Clocking Mode `Programmable Audio Data...

WM8785 Data Sheet

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Part Number:
WM8785
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:

`SNR 111dB ( 'A' weighted @48kHz )
`THD -102dB (at -0.1dB) 
`Sampling Frequency: 8-192kHz
`2 or 3 Wire Microprocessor 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 
`A TDM bus is supported for data out 
`Supply Voltages
   - Analogue 4.5 to 5.5V
   - Digital core: 2.7V to 3.6V 
`20-lead SSOP package




Application

·Recordable DVD
·Players 
·Personal Video Recorders 
·High End Sound Cards 
·Studio Audio Processing Equipment


Pinout

Connection Diagram


Specifications

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by
continuously operating at or beyond these limits. Device functional operating limits and guaranteed
performance specifications are given under Electrical Characteristics at the test conditions specified.

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically
susceptible to damage from excessive static voltages. Proper ESD precautions must be taken
during handling and storage of this device.

Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to
determine acceptable storage  conditions prior to surface mount assembly. These levels are:

MSL1=unlimited floor life at <30/ 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2=out of bag storage for 1 year at <30 / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3=out of bag storage for 168 hours at <30/ 60% Relative Humidity.Supplied in moisturebarrierbag.
CONDITION
MIN
MAX
Digital supply voltage
-0.3V
+3.63V
Analogue supply voltage
-0.3V
+7V
Voltage range digital inputs
DGND -0.3V
DVDD + 0.3V
Voltage range analogue inputs
AGND -0.3V
AVDD +0.3V
Master Clock Frequency
40MHz
Operating temperature range, TA
-25
+85
Storage temperature after soldering
-65
+150

Note:  Analogue and digital grounds must always be within 0.3V of each other.


Description

The WM8785 is a stereo audio ADC with differential inputs designed for high performance recordable media pplications. Data is provided as a PCM output.

Stereo 24-bit multi-bit sigma-delta ADCs are used with digital audio output word lengths of 16 to 32 bits, and sampling ates from 8kHz to 192kHz. The device has a selectable high pass filter to remove residual DC offsets. The device also s upports a TDM bus for data out.

The WM8785 is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including oversam pling rate, audio format, powerdown, master/slave control and digital signal manipulation. The device is supplied in a 0-lead SSOP package.




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