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FM1182 fiches techniques PDF

Forte - Voice Processor

Numéro de référence FM1182
Description Voice Processor
Fabricant Forte 
Logo Forte 





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FM1182 fiche technique
Fortemedia offers the FM1182, a single chip voice
processor with SAM (small array microphone) technology
that delivers industry-best voice quality with echo
cancellation and noise suppression. This device is ideal for
portable Bluetooth devices, USB speakerphones, and as a
solution for the personal computer (“PC”) to have
embedded speakerphone functionality.
The low-power feature allows FM1182 to be used in
portable wireless hands-free devices. The industry leading
echo cancellation will enable speakerphone functions to be
www.DataSheet4U.comadded to Bluetooth headsets and other small form-factor
devices.
With an integrated USB audio interface, designers can
minimize BOM costs in offering a USB speakerphone.
Also, with the FM1182, any PC or monitor can become a
hands-free communication device allowing users to run PC
telephony applications. The FM1182 can also convert
traditional telephones into USB telephones that will enable
users to connect to the PC as another means of
communication.
Application Summary:
Portable Bluetooth device (mobile phone, headset,
speakerphone, etc.)
Hands-free car kit
USB speakerphone/PC speakerphone
Embedded speakerphone for PC/notebook monitor
FM1182 features array microphone with beam-forming to
suppress non-stationary noise by 20dB. Its superior acoustic
echo cancellation performance, up to 60dB, allows a very
short distance (4cm) between the placement of the
microphone and speaker, even while the speaker delivers
120dB throughput.
FM1182 supports dynamic range control, noise suppression
for both voice input and output to increase voice
intelligibility, and full duplex performance.
For Bluetooth applications, the FM1182 provides a serial
port interface that supports all formats.
Key Features:
Highly integrated single chip solution
Powerful acoustic echo cancellation (60dB AEC)
Extremely low power consumption (35mW)
FM1182 Voice Processor
Product Brief v1.0
Requires only single power supply
Small form factor
Supports 1 & 2 microphone modes
Differential inputs/outputs to reduce RF
interference and increase noise immunity
Dynamic range control to increase voice
intelligibility and full duplex
UART interface to external controller
Serial port interface supports u-Law, A-Law, and
linear PCM format
Performance:
Adaptive Step-Sized Sub-band process with
dedicated Non-Linear Filter delivers 60dB AEC
performance
Array microphone with beam-forming to suppress
non-stationary noise (20dB)
Superior full-duplex
Noise suppression (Mic_in), 12dB
Side tone cancellation (25 to 35dB)
Acoustic echo tail length coverage: 64-100ms
Hardware Details:
Up to 40 MIPs 16-bit DSP
3 analog input channels
Programmable gain control
On-chip microphone amplifier
84dB SNR
120-3400Hz for 8KHz sampling rate
2 analog output channels
Programmable gain control
8KHz sampling rate
Speaker_out: 84dB SNR
Line_out: 76dB SNR (single-ended)
Supports 2 Clock Inputs:
4.096MHz clock
13MHz clock
USB 1.1 port (slave mode) for voice data
Separate voltage source for digital interface
circuitry (1.8V or 3.3V)
Power down: <180uW, wakeup time less than
100mS
Hardware Accelerator for Voice Applications
Mic_in, Line_in PGA range: -2dB to +26dB
Line_out, Spk_out PGA range: -29dB to 2dB
Available Packages: 48-pin BGA & 48-pin LQFP
19050 Pruneridge Ave., #100, Cupertino, CA 95014. U.S.
Phone: (408) 8618088, Fax: (408) 8618089, www.fortemedia.com

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