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75T202

Part Number	75T202
Manufacturer	TDK
Description	(75T202 / 75T203) 5V Low Power DTMF Receiver
Published	Jan 22, 2006
Detailed Description	DESCRIPTION w The 75T202 and 75T203 are complete Dual-tone Multifrequency (DTMF) receivers detecting a selectable grou...
Datasheet	75T202 PDF File

Overview

DESCRIPTION w The 75T202 and 75T203 are complete Dual-tone Multifrequency (DTMF) receivers detecting a selectable group of 12 or 16 standard digits.
No front-end pre-filtering is needed.
The only externally required components are an inexpensive 3.
58 MHz television “colorburs” crystal (for frequency reference) and a bias resistor.
Extremely high system density is made possible by using the clock output of a crystal-connected 75T202 or 75T203 receiver to drive the time bases of additional receivers.
Both are monolithic integrated circuits fabricated with low-power, complementary symmetry MOS (CMOS) processing.
They require only a single low tolerance voltage supply and are packaged in a sta...

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