U3741BM-M3FL Atmel, U3741BM-M3FL Datasheet - Page 2

• Manufacturer Part Number: U3741BM-M3FL
• Description: RF Receiver UHF Remote Receiver IF BW of 600kHz
• Manufacturer: Atmel
• Type: RKE Design Kit (U2741B, U3741BM)r

Specifications of U3741BM-M3FL

• Package / Case: SOIC-20
• Operating Frequency: 450 MHz
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS 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