AN2020S
Dual Balanced Modulator IC
s
Overview
The AN2020S is an integrated circuit which incor-
porates two balanced modulators.
It can be used for a video-frequency-band dual am-
plifier, variable gain amplifier, balanced modulator,
demodulator, etc.
1.3
1
2
0.4±0.25
3
4
5
6
7
8
9
18
17
12.6±0.3
V
CC
4.8V
V
REF
1
4
OFF
7
2
3
10
Unit:mm
16
15
14
13
12
11
10
s
Features
0.1±0.1
• Dual balanced modulator
• Superimpose of DC offset to input signal available
• External adjustment of high level limitation to input
signal
0.3
5.4±0.3
7.7±0.3
18-Pin PANAFLAT Package (SOP018-P-0300)
s
Block Diagram
V
REF
1.8V
OFF
V
CC
V
CC
Carrier
Input
0.15
0.65
1.5±0.2
• Low voltage operation:4.8V(typ.)
• Carrier suppression:–43dB(typ.)
1.27
5
High
Level
Limit
DC
Offset
Multiplier
CH1 Output
Amp.
8
6
Signal
Input
13
High
Level
Limit
Multiplier
DC
Offset
CH2 Output
Amp.
11
9
GND
14
15
OFF
V
CC
12
V
CC
17
16
18
GND
V
REF
OFF
Carrier
Input
PANASONIC [ PANASONIC SEMICONDUCTOR ]
