Codec IC - CJC8991
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
- Model Number: CJC8991
- Data Sheet:
- Quantity:
- - +
Product Specification
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：
Application：
Portable multimedia player
Multimedia mobile phone
Palm game
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