Daewoo DG-K301, Service Manual

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3
CIRCUIT OPERATIONAL DESCRIPTION
4) AMPLIFIERS : AZ4558CM-E
Description
The AZ4558 consists of two high performance operational amplifiers. The IC features
high gain, high input resistance, excellent channel separation, wide range of operating
voltage and internal frequency compensation. It can work with ± 8V maximum power
supply voltage.
The AZ4558 is specifically suitable for applications in differential-in, differential-out as
well as in potentialmetric amplifiers and where gain and phase matched channels are
mandatory.
The AZ4558 is available in DIP-8 and SOIC-8 pack-age.
AMPLIFIERS AZ4558CM-E Block Diagram
AMPLIFIERS AZ4558CM-E Pin Assignments
- Input
+ Input
3.1 KΩ
7.1
KΩ
7.1
KΩ
87
pF
480 Ω 4.2 KΩ
36 KΩ
150 Ω
10pF
25 Ω
25 Ω
V
EE
Output
V
CC
(SOIC-8/DIP-8)
Top View
8 V
CC
7 OUTPUT 2
6 INPUT 2-
5 INPUT 2+
1
2
3
4 OUTPUT 1
INPUT 1-
INPUT 1+
V
EE
M Package/P Package