TH71221 datasheet(8/44 Pages) MELEXIS

Il numero della parte	TH71221

Spiegazioni elettronici	27 to 930MHz FSK/FM/ASK Transceiver

PDF	44 Pages

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Produttore elettronici	MELEXIS [Melexis Microelectronic Systems]

Homepage	http://www.melexis.com

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8 / 44 page

TH71221

27 to 930MHz

FSK/FM/ASK Transceiver

39010 071221

Page 8 of 44

Data Sheet

Rev. 005

June/07

Pin No.

Name

I/O Type

Functional Schematic

Description

FS0/SDEN

input

FS0/SDEN

VEE

VCC

120

frequency select input / se-

rial data enable input

VEE_DIG

ground

ground of serial port and

control logic

FS1/LD

input /

output

VEE

VCC

FS1/LD

120

frequency select input / lock

detector output

VCC_PLL analog I/O

VCO open-collector output,

connection to VCC or exter-

nal LC tank

TNK_LO

analog I/O

VCO open-collector output,

connection to external LC

tank

analog I/O

VEE

VCC_PLL

VCC

VEE

VCOCUR

6.3pF

VEE

TNK_LO

120

6.5k

VCC

charge pump output, con-

nection to external loop filter

VEE_PLL

ground

ground of PLL frequency

synthesizer

PS_PA

analog I/O

VEE

VCC

120

PS_PA

10µA

power-setting input

OUT_PA

output

VEE

VCC

OUT_PA

20p

power amplifier open-

collector output

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