STV5728 View Datasheet(PDF) - STMicroelectronics
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STV5728 Datasheet PDF : 11 Pages
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STV5728
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
Tj
Toper
Power Supply Voltage
Junction Temperature
Operating Temperature
Parameter
Value
Unit
6
V
150
oC
0, +70
oC
THERMAL DATA
Symbol
Rth (j-a)
Parameter
Junction-ambient Thermal Resistance
(IC solded on the PC board)
Max.
Value
75
Unit
oC/W
RECOMMENDED OPERATING CHARACTERISTICS
Symbol
VCC
VCCFM
CAGC
CCOM
CCOM1
RADJ
Parameter
Power Supply
FM HIFI Power Supply
AGC Time Constant
Decoupling Capacitor
Decoupling Capacitor
Record Current Adjustment Resistor
Min. Typ. Max. Unit
4.75
5
5.25
V
4.75
5
5.25
V
4.7
22
nF
4.7 470
nF
4.7 470
nF
15
22
33
kΩ
Figure 1 : FM Record Current Amplifier ; Record Current Adjustment Curve
70
60
Recording Level
50
40
30
20
10
20
30
RADJ Value (kΩ)
A certain ratio must be kept between RADJ and
RFMIN to insure maximum performances with an
average FM recording input voltage around
170mVPP. Some examples are given in the follow-
ing tables. If the average input voltage is higher (or
lower), the RFMRIN value must be increased (de-
creased) proportionnaly.
SET-UP
(1)
(2)
(3)
40
RADJ
15kΩ
22kΩ
33kΩ
RFMRIN
1kΩ
1.5kΩ
2kΩ
3/11
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