CW6675
is a highly integrated system-on-chip including all the base-band
signal processing, an internal 16KX8 OTP, and system control functions
that are required for a family radio service (FRS) or walkie-talkie
system. With its embedded Codec and DSP technology, CW6675 provides
many functions such as high accurate/high speed CTCSS tone generator
and detector, weather detector, scramble/ descramble for security,
vibration detection and remote monitor with very low external components.
Meanwhile,
VOX(Voice Activity Detection), ALC(Auto-level Control), 8-bit micro-processor
with 16K byte OTP for customer FRS MMI (Man-Machine Interface) software,
LCD driver, and many other rich features are also included in this
DSP based processor. It is very suitable for a high performance
but cost effective FRS solution.
Features
:
FRS applications with 48 high accurate/speed CTCSS
codes
Built-in weather channel detection
Built-in vibration and remote monitor detection
Built-in VOX for hand-free and and ALC for remote monitor
Built-in scramble/descramble function for security
Provide gain/volume controls and speaker driver up to 32
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On-chip 8-bit A/D for Battery detector, RSSI detection
On-chip 8-bit D/A for output of CTCSS enocder
Power supply from 3.6 to 5.25 volt through internal regulators
Built-in LCD driver for 23X8 LCD pannel and max. 53 GPIOs
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