AN2020S
Dual Balanced Modulator IC
■ Overview
The AN2020S is an integrated circuit which incorporates two balanced modulators.
It can be used for a video-frequency-band dual amplifier, variable gain amplifier, balanced modulator,
demodulator, etc.
■ Features
• Low volta ge operation:4.8V(typ.)
• Carrier suppression:–43dB(typ.)
• Dual balanced modulator
• Superimpose of DC offset to input signal available
• External adjustment of high level limitation to input
signal
1
2
3
4
0.4±0.251.27 1.3
5
6
7
8
910
0.1±0.1
0.3
18-Pin PANAFLAT Package (SOP018-P-0300)
5.4±0.3
7.7±0.3
18
17
16
15
14
13
12
11
1.5±0.2
0.15
0.65
Unit:mm
12.6±0.3
■ Block Diagram
5
Signal
Input
6
13
14
V
CC
OFF
V
REF
1.8V
V
High
Level
Limit
High
Level
Limit
OFF
REF
DC
Offset
DC
Offset
V
CC
V
REF
1 4 7 2 3 10
OFF
OFF
V
CC
V
CC
Carrier
Input
Multiplier
Multiplier
Carrier
Input
Amp.
Amp.
V
CC
4.8V
CH1 Output
8
9
GND
CH2 Output
11
1816171215
GND