SA2421 Datasheet, PDF (9/12 Pages) NXP Semiconductors – 2.45 GHz low voltage RF transceiver

Philips Semiconductors
2.45 GHz low voltage RF transceiver
Product specification
SA2421
9
8
7
6
5
4
3
2
1
0
–1
–40_C
0_C
25_C
70_C
TEMPERATURE (°C)
85_C
2.7V
3.0V
3.8V
5.5V
SR02274
Figure 15. TX 1dB compression vs Supply Voltage and Temp
12.0
11.5
11.0
10.5
10.0
9.5
9.0
8.5
8.0
7.5
7
–18
–16
–14
–12
–10
–8
–5
–2
LO Input (dBm)
–40C
0C
+25C
+70C
+85C
SR02276
Figure 17. Receive Gain vs LO Input over Temp Range
–10
–11
–12
–13
–14
–15
–16
–17
–18
–40_C
25_C
TEMPERATURE (°C)
85_C
2.7V
3.0V
3.8V
5.5V
SR02275
Figure 16. LNA 1dB compression vs Supply Voltage and Temp
26
25
24
23
22
21
20
19
18
17
–18
–16
–14
–12
–10
–8
–5
–2
LO Input (dBm)
–40C
0C
+25C
+70C
+85C
SR02277
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 =
+4.2 dBm (P_–1dB).
2000 Mar 13
9