TH71081EDC データシートの表示（PDF） - Melexis Microelectronic Systems

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TH71081EDC

868/915MHz ASK Transmitter / LO Source

Melexis Microelectronic Systems  

Not recommended for new designsTH71081

868/915MHz

ASK Transmitter / LO Source

3 Pin Definition and Description

Pin No. Name

1 LF

I/O Type

analog I/O

Functional Schematic

LF

200Ω

1

200Ω

5p

2 RO

analog I/O

37k

RO

2

28p

28p

3 ENTX

input

ENTX

1.1k

3

Description

connection to loop filter,

charge pump output,

VCO tuning input

XOSC connection to XTAL,

Colpitts type crystal oscilla-

tor

mode control input, CMOS-

compatible with internal

pull-down

4 PS/DATA analog I/O

5 VCC

6 OUT2

supply

output

PS/DATA

4

200Ω

20µA

VCC

VCC

power-select and ASK input,

high-impedance comparator

logic

TX standby: IPS = 0

TX active: IPS = 20µA

positive power supply

differential power amplifier

output, open collector

7 OUT1

8 VEE

output

OUT2

6

VEE

ground

OUT1

7

differential power amplifier

output, open collector

VEE

VEE

negative power supply

3901071081

Rev. 009

Page 5 of 12

Data Sheet

May/05

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