cxa2555q Sony Electronics, cxa2555q Datasheet - Page 19

• Manufacturer Part Number: cxa2555q
• Description: Rf Amplifier For Cd Player/cd-rom
• Manufacturer: Sony Electronics

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