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CM7001 Datasheet(PDF) 7 Page - C-Media Electronics |
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CM7001 Datasheet(HTML) 7 Page - C-Media Electronics |
7 / 29 page CM7001/CM7001N Voice and Audio Processor SOC Powered By Xear™ Sound Technologies Datasheet Revision: 1.0 www.cmedia.com.tw Page 7 / 29 Copyright© C-Media Electronics Inc. Supports flexible I/O connection and configurable signal routing paths by internal ROM codes: analog-to-analog (default) DMIC-to-DMIC I2S-to-I2S analog-to-I2S DMIC-to-I2S Allows by-passing DSP process from inputs to outputs 3.4 Control interface Supports 2-mode selector control input pins, or I2C control to switch among 4 chip operation modes: Power-Down/Active /Bypass/Suspend Master/slave I2C control interface for interaction with the baseband, application processor, MCU, EEPROM, or other components (supports 100kHz and 400kHz speeds; 100kHz is the default in master mode) Configurable UART control interface Supports up to 8 GPIOs (shared pins) 3.5 Power management Supports 4-power state/operation modes: Power-down/Active/Bypass/Suspend Power-down mode current (for power saving in standby/sleep states of mobile phones): < 1uA Active mode current (ENC-ON): ~21.16 mA (AVDD=2.8V, DVDD=1.8V, Clock=26 MHz, digital mic in/out) Supply current can be lower with some advanced power management configurations Wide power supply range with built-in LDO regulators 3.6 Audio DAC/ADC Embedded 2-channel audio sigma-delta ADC Embedded mono audio DAC 16-bit/16kHz high-fidelity voice data conversion High S-N ratio: ~90 dB Supports mic pre-ampilifer with PGA gain: 0~+31dB, 1dB/step (default=+20dB) Aux-In PGA gain: -12~+19dB, 1dB/step (default=+8dB) Supports DAC PGA gain: 0 ~ -31dB, 1dB/step (default= -17dB) 3.7 F/W control Allows the baseband to read/write commands/parameters in RAM or HW registers via I2C in real-time Allows downloads to upgrade the entire F/W codes into instruction RAM via I2C Power-on loading F/W codes or customized HW and algorithm parameters from external I2C EEPROM\ |
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