—— FORTEMEDIA PRODUCT INTRODUCTION ——
—— FM1188 Product Introduction ——
FM1188 Introduction
- Noise reduction of uplink signals
- Full duplex echoless communication
- The Bright Voice Enhancement (BVE) function intelligently equalizes the output of the speaker to improve the user's auditory senses.
- Natural, zero distortion sound
- Provide Wideband voice processing for emerging mobile broadband calls
Application
The FM1188 chip is mainly used in communication products that use digital transmission methods such as Bluetooth, Ethernet, WIFI, telephone line, and 2.4G, making it easy to connect with various systems.
- Smart home intercom product, visual intercom doorbell.
- Enterprise video conferencing system, international business conferences, remote teaching, remote healthcare, remote conferences, remote training, remote recruitment and other equipment.
- Elderly and child monitoring, monitoring instrument intercom equipment.
- Network hands-free call system.
- Intelligent community, villa access control intercom system.
- Various broadcasting and intercom systems such as elevators, corporate office buildings, and production workshops.
- Intelligent multimedia educational call products.
- Vehicle intelligent communication system.
- Bluetooth call sound system.
- Supports hands-free intercom transfer on mobile phones.
- Handsfree calling tablet.
- Enterprise multi-party conference hands-free call system.
—— Example of FM1188 Circuit Design Block Diagram ——
FM1188 Digital Audio Interface
Explanation:
1) Upstream: Analog MIC signal enters FM1188, sends digital audio signal through PCM interface, and sends it to AP or CODEC as mic signal;
2) Downstream: AP or CODEC receives audio and sends it to FM1188 through the PCM interface. The output analog SPKOUT signal is amplified by PA and played by the speaker.
3) Function: Echo cancellation, noise reduction. Consumer communication products with only digital interfaces. Currently, it is widely used in car phones and other Bluetooth communication scenarios.
FM1188 Analog Audio Interface 1
Explanation:
1) Upstream: The analog MIC signal enters FM1188, and after processing, the analog signal is output by LINEOUT and sent to the backend AP or CODEC for processing;
2) Downstream: AP or CODEC sends the downstream analog signal to FM1188 through the line for downstream processing and echo cancellation reference, and then outputs it to PA through SPKOUT for amplification before being played by the speaker.
3) Function: Echo cancellation, noise reduction. It is recommended to use when strong echo cancellation is required. Used for consumer communication products with analog interfaces.
FM1188 Analog Audio Interface 2
Explanation:
1) Upstream: The analog MIC signal enters FM1188, and after processing, the analog signal is output by LINEOUT and sent out through AP or CODEC;
2) Downstream: AP or CODEC sends the downstream analog signal to FM1188 through the line for echo cancellation reference, and outputs it to PA for speaker playback.
3) Function: Weak echo cancellation, noise reduction. There is an analog audio interface.
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