DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2511B
DEFLECTION PROCESSOR
32-SDIP-400
The KB2511B is a monolithc integrated circuit assem-
bled in 32 pins shrunk dual in line plastic package. This
IC controls all the functions related to the horizontal and
vertical deflection in multimodes or multi-frequency com-
puter display monitors.
The internal sync processor, combined with the very
powerful geometry correction block make the KB2511
suitable for very high performance monitors with very
few external components. The horizontal jitter level is
very low. It is particularly well suited for high-end 15”
and 17” monitors.
FUNCTIONS
• Defiection Processor
• I
2
C BUS Control
• B+ Regulator
• Vertical Parabola Generator
• Horizontal and Vertical dynamic focus
ORDERING INFORMATION
Device
KB2511B
Package
32-SDIP
Operating Temperature
0
°C
~ 70
°C
FEATURES
(HORIZONTAL)
• Self-adaptative
• Dual PLL concept
• 150kHz maximum frequency
• X-RAY protection input
• I
2
C controls : Horizontal duty-cycle, H-position,free running
frequency, frequency generator for burn-in mode.
(VERTICAL)
• Vertical ramp generator
• 50 to 165Hz AGC loop
• Geometry tracking with V-POS & AMP
• I C Controls :
V-AMP, V-POS, S-CORR, C-CORR
(I
2
C GEOMETRY CORRECTIONS)
• Vertical parabola generator
(Pincushion-E/W, Keystone)
2
• Horizontal Dynamic Phase
(Side Pin balance & parallelogram)
• Horizontal and vertical dynamic focus
(Horizontal Focus Amplitude, Horizontal
Focus Symmetry, Vertical Focus Amplitude)
(GENERAL)
• Sync Processor
• 12V supply voltage
• Hor. & Vert, lock/unlock outputs
• Read/Write I
2
C interface
• Vertical moire
• B+ Regulator
-Internal PWM generator for B+ current mode
step-up converter.
- Switchable to step-down converter
- I
2
C adjustable B+ reference voltage
- Output pulses synchronized on horizontal
frequency
1
KB2511B
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
PIN DESCRIPTION
Table 1. Pin Description
No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Pin Name
H/HVIN
VSYNCIN
HLOCKOUT
PLL2C
C0
R0
PLL1F
HPOSITION
HFOCUSCAP
FOCUSOUT
HGND
HFLY
HREF
COMP
REGIN
ISENSE
B+GND
BREATH
VGND
VAGCCAP
VREF
VCAP
VOUT
EWOUT
XRAY
HOUT
GND
BOUT
Vcc
SCL
SDA
5V
Description
TTL compatible horizontal sync input(Separate or composite)
TTL compatible vertical sync input (for separated H&V)
First PLL lock/unlock output (0V unlocked - 5V locked)
Second PLL loop filter
Horizontal oscillator capacitor
Horizontal oscillator resistor
First PLL loop filter
Horizontal position filter(Capacitor to be connected to HGND)
Horizontal dynamic focus oscillator capacitor
Mixed horizontal and vertical dynamic focus output
Horizontal Section Ground
Horizontal Flyback Input (positive polarity)
Horizontal Section Reference Voltage (to be filtered)
B+ error amplifier output for frequency compensation and gain setting
Regulation input of B+ control loop
Sensing of external B+ switching transistor current or switch for step-down converter
Ground (related to B+ reference adjustment)
DC breathing input control(Compensation of vertical amplitude against EHV variation)
Vertical section ground
Memory capacitor for automatic gain control loop in vertical ramp generator
Vertical section reference voltage (to be filtered)
Vertical sawtooth generator capacitor
Vertical ramp output (with frequency independant amplitude and S or C corrections if any).
It is mixed with vertical position voltage and vertical moire.
Pincushion-East/West correction parabola output
X-RAY protection input (with internal latch function)
Horizontal drive output (internal transistor, open collector)
General ground (referenced to Vcc)
B+ PWM regulator output
Supply voltage (12V typ)
I
2
C clock input
I
2
C data input
Supply voltage (5V typ)
4
Embedded System
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