LV25450PNW Datasheet, PDF (12/40 Pages) Sanyo Semicon Device – For Automotive Applications DSP Tuner Front End

LV25450PNW Level Diagrams
LV25450PNW
FET : FET Application
FM (FET) Gain Down
Near practical sensitivity
IFAGC-ON
RFAGC-ON
Strong input signal
ANT in dBμV
5.0
43.6
65.0
120.0
-3.5
ANT
1.5
40.1
61.5
116.5
120
ANTin = 120dBμV
100
0
ANTD
1.5
40.1
61.5
68.1
22.9
FET
Amp
24.4
63.0
84.4
91.0
13.5
IQ
Mixer
37.9
76.5
97.9
104.5
FM Level Diagram
-3
CF
(180k)
34.9
73.5
94.9
101.5
25.5
IFAGC Amp
60.4
99.0
99.0
99.0
55.4
Total
Gain
80
ANTin = 65dBμV
60
ANTin = 45.6dBμV
40
20
ANTin = 5dBμV
0
ANT in dBμV
ANT
ANTD
FET
Amp
Block
IQ
Mixer
CF
(180k)
IFAGC Amp
AM
Near practical sensitivity
IFAGC-ON
RFAGC-ON
Strong input signal
Full Gain
ANT IN
24
56.3
80
120
-16.5
ANT Dummy
7.5
39.8
63.5
103.5
120
ANTin = 120dBμV
0
21.5
10.5
ANTD
RF amp
Mixer
7.5
29
39.5
39.8
61.3
71.8
63.5
85
95.5
63.5
85
95.5
AM Level Diagram
-3.5
CF
(180k)
36
68.3
92
92
100
ANTin = 65dBμV
80
6.2
1st-IF
Amp
42.2
74.5
98.2
98.2
-1
Xtal filter
(6k)
41.2
73.5
97.2
97.2
25.5
IFAGC
Amp
66.7
99
99
99
60
ANTin = 45.6dBμV
40
20
ANTin = 5dBμV
0
ANT IN ANT Dummy ANTD
RF amp
Mixer
Block
CF
(180k)
1st-IF
Amp
Xtal filter
(6k)
IFAGC
Amp
No.A1668-12/40