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U2741B Datasheet(PDF) 2 Page - ATMEL Corporation

Part No. U2741B
Description  UHF ASK/FSK TRANSMITTER
Download  9 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

U2741B Datasheet(HTML) 2 Page - ATMEL Corporation

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U2741B
4733A–RKE–11/03
Figure 1. System Block Diagram
Figure 2. Block Diagram
Demod.
IF Amp
LNA
VCO
PLL
XTO
Control
U3741BM
1...3
Power
amp.
XTO
VCO
PLL
U2741B
Antenna Antenna
UHF ASK/FSK
Remote control transmitter
UHF ASK/FSK
Remote control receiver
Encoder
ATARx9x
1 Li cell
Keys
64
f
PA
n
f
OR
Power
up
VCO
XTO
ASK
FSK
VCC
CLK
GND
LFVCC
LFGND
LF
DIVC
PWRSET
PWRVCC
ANT
PWRGND1
PWRGND2
XTO1
XTO2
U2741B


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