FM1073

Key Features

‧ High integration (DSP, 4 channels of A/Ds, and 2 channels of D/As, ROM, and RAM) and small footprint (48pin LQFP)

‧ Superior noise suppression, up to 18dB, to deliver good voice quality and high voice recognition rate

‧ Differential input/output to minimize the RF interference and white noise

‧ AS3NLF (Adaptive Step-Sized Sub-band NLMS with Non-Linear Filter) delivers excellent Acoustic Echo Cancellation, 52dB to 65dB, with 2 mic., and provides loud and clear voice

‧ Dedicated non-linear echo cancellation process to suppress non-linear echo

‧ Automatic calibration eliminates the needs of any hand adjustments for echo performance

‧ Line echo (side tone) cancellation to remove side tone (25dB to 35dB)

‧ Superior full duplex

‧ Programmability through an optional EEPROM, SHI (Serial Host Interface) or UART for customization

‧ Upgradable to array microphone

‧ Support u-Law and linear PCM mode on CHI bus (serial port interface)

　

 

FM1072

Key Features

‧Adaptive Step-Sized Sub-band process with dedicated Non-Linear Filter delivers 45-60dB AEC performance

‧Array microphone with beam-forming to suppress non-stationary noise (12-15dB)

‧High integration (DSP, 3 channels of A/Ds, and 2 channels of D/As, ROM, and RAM)

‧Very Low power consumption < 30mW (1.8V)

‧Support one and two microphone mode

‧Differential inputs/outputs to reduce RF interference and increase noise immunity

‧Bi-directional noise suppression (Mic_in and Line_in), 13-18dB

‧Dynamic range control to increase the intelligibility and full duplex

‧Side tone cancellation (25 to 35dB)

‧Acoustic echo tail length coverage: 64-100ms

‧Good full duplex

‧Provides UART for external controller to program the FM1072LP

‧Supports u-Law, A-Law, and linear PCM format on Serial Port

 

 

FM1182

Key Features

‧16-bit DSP w/ Hardware Accelerator (Up to 40 MIPs)

‧3 ADC (Analog to Digital Converter)

‧2 DAC (Digital to Analog Converter)

‧On-chip microphone amplifier

‧UART interface to external controller

‧Serial port interface supports u-Law, A-Law, and linear PCM format

‧ Extreme low power consumption (35mW)

‧Powerful AEC (acoustic echo cancellation) (60dB)

‧Differential I/O to reduce RF interference and increase noise immunity

‧ Dynamic range control (DRC) to increase voice intelligibility

‧Side tone cancellation of 25 to 35dB

‧Acoustic echo tail length coverage: 64 to 100ms

‧Mic_in & Line_in PGA (programmable gain amplification) range from -2dB to +26dB

‧Line_out & Spk_out PGA range from -29dB to +2dB