RFEVAL2-315 RF Solutions, RFEVAL2-315 Datasheet - Page 3

• Manufacturer Part Number: RFEVAL2-315
• Description: BOARD EVALUATION RF 315MHZ
• Manufacturer: RF Solutions
• Series: KEELOQ®r
• Type: Keyless Entryr

Specifications of RFEVAL2-315

• Frequency: 315MHz
• For Use With/related Products: RF600
• Other names: RFEVAL2-315R1; RFEVAL2-315R1

DS600-10 March ‘06
Pin Descriptions
S0-3
These are the switch inputs which when operated wake up the RF600E and cause transmission. They
may be switched directly to Vcc. Transmission occurs for the duration of the switch operation.
Vcc / Vss
The power supply needs to be a stable regulated voltage with <10mV ripple. Note that in idle mode the
transmitter current drain is typically only 100nA.
OP
Data Output, this is a standard CMOS / TTL output that may be connected directly to the data input pin of
the RF Module. In the event that this represents a load to Vcc then a buffer stage between the data output
and the RF module will be required.
LED
A direct LED drive with internal current limit of typically 1 mA operates when the RF600E is transmitting.
Typical Application Circuit Diagram for FM radio modules
Not that a circuit constructed using AM radio modules does not need to have transistor BC848, resistor
10K or 2k2 Pull up resistor fitted.
Name
LED
Vss
Vcc
OP
S0
S1
S2
S3
Sw 4
RF / IR Encoder / Decoder Chipset
RF Evaluation Boards,
Sw 3
Number
Pin
1
2
3
4
5
6
7
8
Sw 2
Sw 1
Switch input 0
Switch input 1
Switch input 2
Switch input 3
Ground reference connection
Data output
Cathode connection for directly
driving LED during transmission
Positive supply voltage connection
©2004 Reg. No. 227 4001, ENGLAND
4
1
2
3
S3
S0
S1
S2
Vcc
RF600E
Description
GND
Vcc
LED
DO
8
7
6
5
10K
Transmit
LED
BC848
Serial Data
Output
Pull Up Resistor
2K2
Page 3
RF Transmitte r
RF600E
RF600D