NXP Semiconductors SGTL 5000低功耗立体声编解码器

NXP SGTL5000低功耗立体声编解码器配有Freescale品牌的耳机放大器。此编解码器旨在为需要LINEIN、MIC_IN、LINEOUT和数字I/O的产品提供完整的音频解决方案。 SGTL5000能够实现低功耗、小尺寸和高性能等优势。此编解码器采用无电容耳机设计和有助于降低整体系统成本的内部PLL。

特性

Analog Inputs
- Stereo LINEIN - Support for external analog input
- Stereo LINEIN - Codec bypass for low power
- MIC bias provided
- Programmable MIC gain
- ADC - 85dB SNR (-60dB input) and -73dB THD+N (V_DDA = 1.8V)
Analog Outputs
- HP Output - Capless design
- HP Output - 62.5mW max, 1.02kHz sine into 16Ω load at 3.3V
- HP Output - 100dB SNR (-60dB input) and -80dB THD+N (V_DDA = 1.8V, 16Ω load, DAC to headphone)
- LINEOUT - 100dB SNR (-60dB input) and -85dB THD+N (V_DDIO = 3.3V)

Digital I/O
- I²S port to allow routing to the application processor
Integrated Digital Processing
- NXP surround, NXP bass, tone control/ parametric equalizer/graphic equalizer clocking/control
- PLL allows input of an 8.0MHz to 27MHz system clock - standard audio clocks are derived from PLL
Power Supplies
- Designed to operate from 1.62 to 3.6 volts