Philips Semiconductors

Product specification

SA2421

2.45 GHz low voltage RF transceiver

2000 Mar 13

9

–1

0

1

2

3

4

5

6

7

8

9

TEMPERATURE (

°C)

SR02274

–40

_C0_C25_C70_C85_C

2.7V

3.8V

3.0V

5.5V

Figure 15.

TX 1dB compression vs Supply Voltage and Temp

–18

–17

–16

–15

–14

–13

–12

–11

–10

TEMPERATURE (

°C)

SR02275

–40

_C25_C85_C

2.7V

3.8V

3.0V

5.5V

Figure 16.

LNA 1dB compression vs Supply Voltage and Temp

7

7.5

8.0

8.5

9.0

9.5

10.0

10.5

11.0

11.5

12.0

LO Input (dBm)

SR02276

–40C

+25C

0C

+70C

+85C

–18

–16

–14

–12

–10

–8

–5

–2

Figure 17.

Receive Gain vs LO Input over Temp Range

17

18

19

20

21

22

23

24

25

26

LO Input (dBm)

SR02277

–40C

+25C

0C

+70C

+85C

–18

–16

–14

–12

–10

–8

–5

–2

Figure 18.

Transmit Gain vs LO Input over Temp Range

The Rx IN port is matched to 50

Ω and has an input IP3 of +2.2 dBm

(mixer only). The down-convert mixer is buffered and has open

collectors at the pins to allow for matching to common SAW filters.

The up convert mixer has an input pin to output pin gain of 23 dB.

The output of the up-converter is designed for a power level =