ADC IC - CJC6808

Audio Performance
- ADC SNR 95dB (‘A’ weighted) at 3.3V
- DAC SNR 98dB (‘A’ weighted) at 3.3V
ADC and DAC Sampling Frequency: 8kHz – 96kHz
ADC : 16K 32K
DAC : 8K 32K 44.1K 48K 88.2K 96K

  • Model Number: CJC6808
  • Data Sheet: Date Sheet File
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  • ADC IC
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Product Specification

The CJC6808 are low power multi route direct sound gathering CODECs. The CJC6808 is also ideal for MD, CD-RW machines and DAT recorders.
The CJC6808 include 6 ADCs and 2 DACs, along with a mute function, programmable line level volume control and a bias voltage output suitable for an electronic microphone. Stereo 24-bit multi-bit sigma delta ADCs and DACs are used with oversampling digital interpolation and decimation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported. Line level outputs are also provided along with anti-thump mute and power up/down circuitry.

The CJC6808 also include a PLL which can produce 11.2896MHZ clock. Then only 12.288MHZ crystal is needed and we need not change crystal . A sar adc is also put into to wake up the chip when the music coming in .
The device 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 smaller 48 lead quad flat leadless package (QFN).

FEATURES:
Audio Performance
- ADC SNR 95dB (‘A’ weighted) at 3.3V
- DAC SNR 98dB (‘A’ weighted) at 3.3V
ADC and DAC Sampling Frequency: 8kHz – 96kHz
ADC : 16K 32K
DAC : 8K 32K 44.1K 48K 88.2K 96K
Selectable ADC High Pass Filter
Programmable ALC / Noise Gate
2 or 3-Wire MPU Serial Control Interface
Programmable Audio Data Interface Modes
- I2S, Left, Right Justified
- 16/20/24/32 bit Word Lengths of DAC
- Master or Slave Clocking Mode
-Cascade TDM interface of ADC
Microphone differential input
Available in 48-lead QFN package
Recorders
PDAs / smartphones


Application:

Sound recorder

PDA

Smart phone

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