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TH72002 Datasheet(PDF) 7 Page - Melexis Microelectronic Systems

Part # TH72002
Description  ASK Transmitter
PDF  20 Pages
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Manufacturer  MELEXIS [Melexis Microelectronic Systems]
Direct Link  http://www.melexis.com
Logo MELEXIS - Melexis Microelectronic Systems

TH72002 Datasheet(HTML) 7 Page - Melexis Microelectronic Systems

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TH72002
315MHz
ASK Transmitter
3901072002
Page 7 of 20
Data Sheet
Rev. 010
Jun/12
3 Pin Definition and Description
Pin No.
Name
I/O Type
Functional Schematic
Description
1
ASKDTA
input
ASK data input,
CMOS compatible with
operation mode dependent
pull-up circuit
TX standby: no pull-up
TX active: pull-up
2
n. c.
no connection
3
ROI
analog I/O
XOSC connection to XTAL,
Colpitts type crystal
oscillator
4
ENTX
input
mode control input,
CMOS-compatible with
internal pull-down circuit
5
PSEL
analog I/O
power select input, high-
impedance comparator logic
TX standby: IPSEL = 0
TX active: IPSEL = 8µA
6
VCC
supply
positive power supply
7
OUT
output
power amplifier output,
open collector
8
VEE
ground
negative power supply
1.5kΩ
1
0: ENTX=1
1: ENTX=0
ASKDTA
ROI
3
36p
36p
25k
ENTX
4
1.5kΩ
PSEL
5
1.5kΩ
PSEL
I
OUT
7
VEE
VEE
VCC



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