la3335m Sanyo Semiconductor Corporation, la3335m Datasheet - Page 3

• Manufacturer Part Number: la3335m
• Description: Pll Fm Multiplex Demodulator For 3 V Headphone Stereos And Radio-cassette Recorders
• Manufacturer: Sanyo Semiconductor Corporation

External Parts
Typical Voltage and Name of Each Pin
Proper cares in using IC
1.
2.
Pin No.
VCO stop method
Short pin 7 and pin 3 (V
(Note) The maximum voltage to be applied to pin 7 must not exceed the voltage on pin 3.
Free-running frequency check method : Use either of the following two methods.
a)
10
1
2
3
4
5
6
7
8
9
Connect pin 4 to a frequency counter through the high input impedance amplifier.
Part Name
Semifixed
Capacitor
Resistor
resistor
CC
V
V
CC
CC
Voltage
pin) to stop the VCO.
1.2 V
1.3 V
1.3 V
V
0 V
–0.7 V
–0.7 V
—
—
—
CC
Symbol
VR1
R1
R2
C1
C2
C3
C4
C5
C6
C7
Carbon resistor
Carbon resistor
Carbon resistor
Electrolytic capacitor
Electrolytic capacitor
Polystyrol capacitor
Electrolytic capacitor
Ceramic capacitor
Ceramic capacitor
Electrolytic capacitor
Input
PLL loop filter
Power supply
VCO
NC
GND
Stereo indicator
Pilot sync detection filter
Decoder output (low)
Decoder output (high)
LA3335M
Figure 1
Kind
Name
1000 pF
6800 pF
6800 pF
560
2.2 µF
0.1 µF
27 k
10 k
Value
1 µF
Open collector
VCO time constant
Limiting resistor
VCO OSC frequency adjust
DC blocking
Loop filter
VCO time constant
Pilot detection
De-emphasis
De-emphasis
Power supply ripple filter
Remarks
Remarks
0.65 V
V
CC
–0.2 V
CC
No.2619-3/6