Features: Supports triple band operation: Europe 868 MHz and 433 MHz-, US and Japan 315 MHz ISM band.
Designed to be conform to EN 300 220, and FCC 47 CFR Ch.1 par.15 requirements.
Provides highly reliable packet oriented data transmission in blocks of 128 bit.
Event oriented single message transmission and status oriented and continuous message transmission supported.
Special transmission protocol for high reliability even in presence of burst interferer (e.g.GSM) implemented.
Supports clock for an external C and allows clock free total shut down of the whole system.
Wide supply range between 2,2 to 3,5 V.
Low TX current, typical 8,5 mA @ 2,2 V.
Low standby current, typical 0,5 A.
Wide operating temperature range from 40 °C to +85 °C.
Only a low cost XTAL for 25 ppm (868 MHz) or 50 ppm (433 and 315 MHz) reference fre-quency tolerance required.
Typically only 1 XTAL, 4 capacitors and 2 inductors externally required.
ApplicationKey-less car entry systems.
Short-range packet oriented data transmission.
Security applications and alarm systems.
Domestic remote control systems.
Industrial remote control systems.
Remote metering.
Pinout
Specifications
| Symbol |
Parameter |
Min |
Max |
Unit |
Note |
| VDD; VDD |
SYN Positive supply voltage |
-0.5 |
6 |
V |
|
| GND; GND |
SYN Negative supply voltage |
0 |
0 |
V |
|
| Vin |
Voltage at every input pin |
Gnd-0,5 |
VCC+0,5 |
V |
|
| Iin |
Input current into any pin except
supply pins
|
-10 |
10 |
mA |
Latch-up Test |
| ESD |
Electrostatic discharge |
|
1K |
V |
1) 3)
|
| ESDIN |
Electrostatic discharge of RF pins |
|
500 |
V |
1) 4) |
| Tstg |
Storage temperature |
-55 |
125 |
|
|
Tlead |
Lead temperature |
|
260 |
|
2) |
DescriptionThe ASCell3911 is a low power, triple ISM band (868 / 433 / 315 MHz), single channel FSK transmitter designed to work in a remote control link
together with the SC3912 receiver system cell.
The ASCell3911 performs packet oriented data transmission, in a single message- or continuos-message mode using a special protocol to
ensure high reliability even in presence of strong pulsed interferers in close adjacent bands like e.g. GSM.
ASCELL3911 contains a general bi-directional five line micro-controller (C) interface to support the C with clock- and reset- signal and to operate
the highly efficient power up/down management includ-ing. ASCELL3911 allows e.g. a clock-free total shut-down of the whole transmitter system.
As external components the ASCell3911 need only a reference XTAL, 4 capacitors and up to 2 inductors.
ASCELL3911 Data Sheet
