u2741b ATMEL Corporation, u2741b Datasheet - Page 2
u2741b
Manufacturer Part Number
u2741b
Description
Uhf Ask/fsk Transmitter U2741b
Manufacturer
ATMEL Corporation
Datasheet
1.U2741B.pdf
(11 pages)
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Figure 1-1.
Figure 1-2.
2
Keys
1 Li cell
U2741B
System Block Diagram
Block Diagram
ATARx9x
Encoder
Remote control transmitter
U2741B
LFGND
LFVCC
UHF ASK/FSK
XTO
GND
VCC
ASK
FSK
CLK
LF
Power
PLL
amp.
VCO
Power
U2741B
OR
up
Antenna Antenna
VCO
f
f
64
n
U3741BM
XTO
PA
LNA
Remote control receiver
Demod.
IF Amp
UHF ASK/FSK
DIVC
PWRSET
PWRVCC
ANT
PWRGND1
PWRGND2
XTO1
XTO2
VCO
PLL
Control
XTO
1...3
4733B–RKE–09/05
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