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4

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k

P

3

T

1

E

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R

3

Pin Descriptions RF803E

See Page 8 for typical application circuit

RF803E

PDIP

DFN

1

8

7

6

3

2

VCC

IP 2

TX

GND

N/C

4

5

IP1

IP 3

N/C

SOT23

Pin

Number

Name

Input /

Output

Description

1

IP 1

IP

Switch input 1 (active low)

3

IP 2

IP

Switch input 2 (active low)

6

IP 3

IP

Switch input 3 (active low)

2

GND

IP

Supply GND

4

TX

OP

Data output

5

Vcc

IP

Supply Voltage

PDIP

Pin

Number

Name

Input /

Output

Description

1

-

-

Not Connected

2

Vcc

IP

Supply Voltage

3

TX

OP

Data output

4

IP 2

IP

Switch input 2 (active low)

5

IP1

IP

Switch Input 1 (active low)

6

-

-

Not Connected

7

GDN

OP

Ground Connection

8

IP3

IP

Switch Input 3 (active low)

IP 1-3

These are the switch inputs which when operated wake up the RF803E and cause transmission.

They may be switched directly to Ground. Transmission occurs for the duration of the switch

operation.

Vcc

The power supply needs to be a stable regulated voltage between 2.5 and 5.5V with <10mV ripple.

Note that in idle mode the transmitter current drain is typically only 100nA.

GND

Ground connection

TX

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.