SA627 Datasheet, PDF (9/16 Pages) NXP Semiconductors – High performance low power FM IF system with high-speed RSSI

Philips Semiconductors
High performance low power mixer FM IF system
with high-speed RSSI
Product specification
SA627
20
RF = 45MHz
IF = 455kHz
V_CC = 6V
AUDIO REF = 174mV_RMS
0
RSSI
5 (Volts)
–20
4
+
THD NOISE
–40
3
AM (80%)
–60
2
–80
RSSI
(Volts)
NOISE
1
–100
–130
–110
–90
–70
–50
–30
–10
RF INPUT LEVEL (dBm)
Figure 6. SA627 Application Board at 25°C
0
10
SR00486
1.70
1.65
1.60
1.55
RFINP–38dBm
1.50
RFINP–28dBm
1.45
RFINP–56dBm
1.40
1.35
1.30
1.25
1.20
1.15
1.10
–40
–30
–20
–10
0
10
20
30
40
50
60
70
80
TEMPERATURE (°C)
Figure 7. SA627 Rise Time 455kHz IF Frequency
90
SR00487
1997 Nov 07
9