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Manufacturer / Brand: AD
Details: Quad ADC with Diagnostics (10V Input)
Series: ADAU1977
Quantity Available: Over 22380 pieces

Datasheet for ADAU1977:

ADAU1977 datasheet
Price for ADAU1977
Product Parameters
  • Manufacturer Part Number : ADAU1977
  • Manufacturer : AD
  • Description : Quad ADC with Diagnostics (10V Input)
  • Series : ADAU1977
  • Reference Price : USD 2.656
  • Our Price : We have a better price, contact us by email
  • Product Type : Audio A/D Converters
  • Function : -
  • Current Suggest : Production
  • Status : Production
  • RoHS Status: -
  • Voltage: -
  • Feature: -
  • Package Case: -
  • Temperature Range: -
  • Packing: Reel/Tray/Tube
  • Standard Packing Quantity: -
  • Country of Origin: -
  • Other Part Number : ADAU1977
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Related IC Components
Features and Benefits of ADAU1977
  • Programmable microphone bias (5 V to 9 V) with diagnostics
  • Four 10 V rms capable direct-coupled differential inputs
  • On-chip PLL for master clock
  • Low EMI design
  • 106 dB ADC dynamic range
  • −95 dB THD + N
  • Selectable digital high-pass filter
  • 24-bit ADC with 8 kHz to 192 kHz sample rates
  • See data sheet for additional features


Product Detailed Description for ADAU1977
The ADAU1977 incorporates four high performance analog-todigital converters (ADCs) with direct-coupled inputs capable of 10 V rms. The ADC uses multibit sigma-delta (Σ-Δ) architecturewith continuous time front end for low EMI. The ADCs can be connected to the electret microphone (ECM) directly and provide the bias for powering the microphone. Built-in diagnostic circuitry detects faults on input lines and includes comprehensive diagnostics for faults on microphone inputs. The faults reported are short to battery, short to microphone bias, short to ground, short between positive and negative input pins, and open inputterminals. In addition, each diagnostic fault is available as an IRQ flag for ease in system design. An I2C/SPI control port is also included. The ADAU1977 uses only a single 3.3 V supply. The part internally generates the microphone bias voltage. The microphone bias is programmable in a few steps from 5 V to 9 V. The low power architecture reduces the power consumption. An on-chip PLL can derive the master clock from an external clock input or frame clock (sample rate clock). When fed with a frame clock, the PLL eliminates the need for a separate high frequency master clock in the system. The ADAU1977 is available in a 40-lead LFCSP package.

APPLICATIONS
Lifecycle information of ADAU1977

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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