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| U3745BM Datasheet, PDF (2/29 Pages) ATMEL Corporation – UHF ASK RECEIVER IC | |||
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System Block Diagram
1 Li cell
Encoder
Keys M44Cx9x
UHF ASK/FSK
Remote control transmitter
U2745B
UHF ASK
Remote control receiver
U3745BM
Demod.
Data
interface
XTO
PLL
VCO
Antenna Antenna
IF Amp
PLL
XTO
1...3
µC
Power
amp.
LNA
VCO
Pin Configuration
Figure 1. Pinning SO20
NC 1
ASK 2
CDEM 3
AVCC 4
AGND 5
DGND 6
MIXVCC 7
LNAGND 8
LNA_IN 9
NC 10
U3745BM
20 DATA
19 ENABLE
18 TEST
17 POUT
16 MODE
15 DVCC
14 XTO
13 LFGND
12 LF
11 LFVCC
2 U3745BM
4663AâRKEâ06/03
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