U2741B-NFB
| Model | U2741B-NFB |
| Description | UHF ASK/FSK TRANSMITTER |
| PDF file | Total 9 pages (File size: 187K) |
| Chip Manufacturer | ATMEL |
Figure 1.
System Block Diagram
UHF ASK/FSK
Remote control transmitter
UHF ASK/FSK
Remote control receiver
1 Li cell
U2741B
Encoder
ATARx9x
XTO
U3741BM
Demod.
PLL
IF Amp
Micro-
controller
Control
1...3
Keys
Antenna Antenna
VCO
PLL
XTO
Power
amp.
LNA
VCO
Figure 2.
Block Diagram
ASK
OR
DIVC
FSK
PWRSET
Power
up
VCC
PWRVCC
VCO
CLK
PA
ANT
GND
f
64
PWRGND1
LFVCC
f
n
PWRGND2
XTO
XTO1
LFGND
LF
U2741B
XTO2
2
U2741B
4733A–RKE–11/03
Related PDFs
| Model | Description | Manufacturer | Operation |
|---|---|---|---|
 U2741B-NFBG3
|
UHF ASK/FSK TRANSMITTER | ATMEL | Preview |
