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.
RX sensitivity of the receiver typical -100 dBm.
Supports clock for an external C and allows clock free total shut down of the whole system.
Wide supply range between 2.7 to 5.5 V.
Low RX current, typical 10 mA @ 2.4 V.
Low idle mode current, typical 1.2mA.
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.
Minimum only 1 XTAL and 4 capacitors 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 |
|
| ESD |
Electrostatic discharge |
|
1K |
V |
1) 3)
|
| Tstg |
Storage temperature |
-55 |
125 |
|
|
Tlead |
Lead temperature |
|
260 |
|
2) |
DescriptionThe ASCell3912 is a low power, triple ISM band (868 / 433 / 315 MHz), single channel FSK re-ceiver designed to work in a remote control
link together with the SC3911 transmitter system cell.
The ASCell3912 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.
A general bi-directional micro-controller (C) interface is provided, to support the C with clock-and reset- signal, and to operate the highly
efficient power up/down management.
As external components the SC3911 need at minimum only a reference XTAL, and 4 capacitors.
ASCELL3912 Data Sheet
