1.1 Overview

Incorporating the latest Fortemedia technologies for removing ambient noise and acoustic echoes, the FM1288 preserves voice naturalness for greater speech intelligibility in a variety of noisy automotive enviroments. Designed to be compatible with a wide range of host processors and blue-tooth devices, the FM1288 voice processor is designed for easy system integration.

The FM1288 provides system designer the flexibilities to customize each processing module and fine-tune the algorithms to the unique needs and acoustic path characteristics of the manufacturer’s automotive model cabin or handsfree communication device.

1.2 Key Features

- Highly integrated SOC

o Digital Signal Processor(DSP) with Hardware Accelerators, RAM, and ROM

o 3 ADC (Analog to Digital Converter)

o 2 DAC (Digital to Analog Converter)

o Differential I/O on all analogs to improve noise immunity

o 2 On-chip analog microphone inputs

o IIC-Compatible Serial (SHI) and UART control interface to host processor

o IIS-Compatible and PCM data interface to host or Bluetooth processor

o Built-in PLL supports highly flexible clocking input

o Can operate as co-processor or as standalone processor

- High performance

o Advanced algorithms for acoustic echo cancellation and noise reduction

o Robust full-duplex for in-vehicle applications

o Preserves voice naturalness and effective in automotive environment

o Wideband (HD Voice) and narrowband voice processing

o Bright Voice Enhancement (BVE) for downlink listening improvement

o Dynamic Range Control (DRC) for range control

o Equalization (EQL) on uplink and downlink voice paths

o Line in and Line out signal path Automatic Gain Control (AGC)

o Configurable processing modules performance

o Non-invasive run-time performance tuning via UART and IIC-compatible port

o Run time switching between processing mode and various by-pass modes

o User-selectable between two microphone inputs (usage - one for front-seat passengers and another for back-seat passengers in vehicle cabins)

- Available in 48-pin LQFP packages, Automotive Grade