CXA2555Q 查看數據表（PDF） - Sony Semiconductor
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CXA2555Q Datasheet PDF : 22 Pages
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CXA2555Q
RF AC Characteristics Graphs (Pin 22)
Frequency response
28
1
RF C = VC
2
Rbst = 3.9kΩ
26
Rfc = 6.8kΩ
L/L H/L
24
L/H
H/H
22
20
10–1
25
20
100
101
Frequency [MHz]
Cut-off frequency
1
Rbst = 0Ω, RF C = 2 VC
H/H Mode
15
10
5
4 6 8 10 12 14 16 18 20
Rfc [kΩ]
Boost gain characteristics
8
Rfc =6.8kΩ,
7
1
RF C = VC
6
2
5
4
3
2
1
0
–1
0
5
10
15
20
Rbst [kΩ]
VCA characteristics
35
30
25
20
15
10
0.8 1.0 1.2 1.4 1.6 1.8
RF C [V]
Notes) In the graphs above,
Rfc: FC C (pin 26) external resistor value
Rbst: BST C (pin 27) external resistor value
∗ To ensure stable operation, it is recommended to select Rfc value of 6.2kΩ and above, and Rbst of 10kΩ
and below in all cases.
– 19 –
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