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Codec IC

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  • Price

    Price on request   ≥1piece

  • Model Number

    CJC8991

  • Data Sheet

  • Package

    Original packaging

  • Specs

    CJC8991

  • Quantity

    - +

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Product Description

CJC8991 Is a low-power, high-quality codec, specially designed for portable digital audio applications.

The device integrates the full interface into a stereo headset or line output port. The requirement for external components is not required. Advanced on-chip digital signal processing for a microphone or line input performs an audio equalizer, 3 D sound enhancement, and automatic volume control.

CJC8991 Can be run as a host or slave with a variety of main clock frequencies including USB, a 12 or 24 MHz of devices, or standard 256fs rates such as 12.288MHz and 24.576MHz. Different audio sampling rates such as 96kHz,48kHz,44.1kHz are generated directly from the main clock without the need for external PLs.

CJC8991 It can operate when the power supply voltage drops to 1.8V, and the digital computing unit can operate at a voltage as low as 1.5V to save power consumption. The maximum voltage of all power sources is 3.3V. Different parts of the chip can also be powered off individually under software control. CJC8991, With a very compact 4x4mm COL package, perfect for use in handheld devices and portable systems.


Features：

DAC SNR 95dB („A‟ weighted), THD –85.2dB at 48kHz, 1.8V
ADC SNR 97.7dB („A‟ weighted), THD -87dB at 48kHz, 1.8V
Programmable ALC / Noise Gate
2x On-chip Headphone Drivers
-THD –84.5dB , SNR 94dB with 16Ω Headphone at 48KHz, 1.8V
Digital Graphic Equaliser
Low Power
-7mW stereo playback (1.8V supplies)
-13mW record and playback (1.8V supplies)
Low Supply Voltages
-Analogue 1.8V to 3.3V
-Digital core: 1.5V to 3.3V
-Digital I/O: 1.8V to 3.3V
256fs / 384fs or USB master clock rates: 12MHz, 24MHz
Audio sample rates: 8, 11.025, 16, 22.05, 24, 32, 44.1, 48,
88.2, 96kHz generated internally from master clock
4x4mm COL package


Application：

Portable multimedia player

Multimedia mobile phone

Palm game

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