U3741BM-M2FL Atmel, U3741BM-M2FL Datasheet - Page 2
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U3741BM-M2FL
Manufacturer Part Number
U3741BM-M2FL
Description
Manufacturer
Atmel
Datasheet
1.U3741BM-M2FL.pdf
(32 pages)
Specifications of U3741BM-M2FL
Operating Frequency (max)
450000kHz
Operating Temperature (min)
-40C
Operating Temperature (max)
105C
Operating Temperature Classification
Industrial
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Lead Free Status / Rohs Status
Not Compliant
System Block Diagram
Block Diagram
2
Keys
1 Li cell
U3741BM
ATARx9x
Encoder
LNAGND
FSK/ASK
MIXVCC
LNA_IN
CDEM
AGND
DGND
AVCC
SENS
Remote control transmitter
U2741B
XTO
UHF ASK/FSK
LNA
RSSI
Power
VCO
amp.
PLL
and data filter
Demodulator
FSK/ASK-
4
IF Amp
IF Amp
th
3 MHz
3 MHz
LPF
LPF
Order
Antenna
Limiter out
Sensitivity
reduction
DEMOD_OUT
Antenna
f
VCO
U3741BM
64
Standby logic
LNA
Polling circuit
control logic
FE
Remote control receiver
and
Demod
UHF ASK/FSK
XTO
CLK
50 k
VCO
PLL
V
S
DATA
ENABLE
TEST
POUT
MODE
DVCC
LFGND
LFVCC
XTO
LF
Control
XTO
1...3
µC
4662B–RKE–10/04