Daewoo DTR-14D3VG, Service Manual

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KA4558H/A/I
(1) General Description
The KA4558 series is a monolithic integrated circuit designed for dual operational amplifier.
(2) Features
• No frequency compensation reguired.
• No latch-up.
• Large common mode and differential voltage range.
• Gain and phase match between amplifiers.
• Internally frequency compensated.
• Low noise input transistors.
(3)Block Diagram
(4) SCHEMATIC DIAGRAM (One Section Only)
Vcc
V
EE
R2
C1
Q3
R3
R4
Q10
Q6
C2
R5
Q8
Q9
Q12
R7
R8
Q11
Q13
Q7
R8 Q14
Z1
R9
Q15
OUTPUT
Q4
R1
Q5
Q2
Q1
IN( – )
IN( + )