th71221 Melexis Company, th71221 Datasheet - Page 7

• Manufacturer Part Number: th71221
• Description: Transceiver - 27 To 930mhz, Fsk/fm/ask, Multi-channel 32l Qfn 5x5 Quad
• Manufacturer: Melexis Company

39010 071221
Rev. 006
Pin No.
10
11
12
13
14
15
16
8
9
OUT_DTA
VCC_DIG
ASK/FSK
RE/SCLK
TE/SDTA
FSK_SW
VEE_RO
IN_DTA
Name
RO
analog I/O
analog I/O
I/O Type
ground
supply
output
input
input
input
input
ASK/FSK
RE/SCLK
TE/SDTA
IN_DTA
RO
13
16
10
12
15
OUT_DTA
Functional Schematic
FSK_SW
8
Page 7 of 44
11
VCC
VCC
VCC
VCC
VEE
36p
39k
2.6µA
120
VCC
VCC
VEE
120k
VEE
120k
120k
VEE
VCC
VEE
VEE
VEE
120
120
120
36p
FSK/FM/ASK Transceiver
OA1 output, high impedance
in transmit and idle mode
ground of RO
RO input, base of bipolar
transistor
FSK pulling pin, switch to
ground or OPEN
The switch is open in re-
ceive and idle mode
ASK/FSK modulation data
input, pull down resistor
120kΩ
ASK/FSK mode select input
positive supply of serial port
and control logic
receiver enable input / clock
input for the shift register,
pull down resistor 120kΩ
transmitter enable input /
serial data input, pull down
resistor 120kΩ
TH71221
Description
27 to 930MHz
Data Sheet
June/08