TDA4800 Datasheet, PDF (3/16 Pages) NXP Semiconductors – Vertical deflection circuit for monitor applications

Philips Semiconductors
Vertical deflection circuit for monitor
applications
BLOCK DIAGRAM
Product specification
TDA4800
handbook, full pagewidth
SYNC
CIRCUIT
OSCILLATOR
TDA4800
BLANKING
PULSE
GENERATOR
+2 V
RAMP BUFFER
GENERATOR STAGE
GUARD
CIRCUIT
PRE-
AMPLIFIER
POWER
OUTPUT STAGE
THERMAL AND
SOAR PROTECTION
VOLTAGE
STABILIZER
FLYBACK
GENERATOR
FREQUENCY
DETECTOR
1
2
3
R17
C1
R1
(frequency)
R2
C2
4
5
6
7
8
9 10 11
12
13
R3
R4
D1
1N4148
R5
P1
linearity
vertical
deflection
unit
6.5 Ω
R6
C10 R7
C8
C4
D2
6.5
BAX18
mH
C5
R10
C9
C7
C11
R15
R14
frequency
criterion
R13
C6
R12
or
P2
amplitude
R16
R11
sync input
R8
R9
blank
output
Vamplitude
C12
VP2 = 23 V
MHA590
1997 Mar 27
Fig.1 Block diagram.
3