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DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
DEFLECTION PROCESSOR
42-SDIP-600 The KB2147 is a monolithic integrated circuit assembled in a 42 pins shrunk dual in line plastic package. The goal of this IC is to control all the functions related to the horizontal and vertical deflection in multimodes or multisync monitors.
FUNCTIONS
* Positive or Negative sync polarities * Auto-sync horizontal processing * H-PLL lock/unlock identification * Auto-sync Vertical processing * East/West signal processing block * B+ controller * Safety blanking output
Device Package 42-SDIP Operation Temperature 0 C ~ 70 C
ORDERING INFORMATION
FEATURES
(HORIZONTAL) * Dual Pll concept * Self-adaptative (30 to 70kHz) * X-ray protection input * DC adjustable duty-cycle * Internal 1st PLL lock/unlock information * Wide range DC controlled H-position * ON/OFF switch (for PWR management) * Two H-drive polarities (VERTICAL) * Vertical ramp generator * 50 to 120Hz AGC Loop * DC controlled V-amp, V-pos, S-amp & S-centring * ON/OFF Switch (B+ REGULATOR) * Internal PWM generator for B+ current mode step-up conveter * DC adjustable B+ voltage * Output pulse synchronised on horizontal frequency * Internal MAX current limitation
KB2147
(GENERAL) * Accept Positive or Negative Horizontal & Vertical sync polarities * Separate H & V TTL input * Safety blanking output (EWPCC) * Vertical parabola generator with DC * controlled keystone & amplitude
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KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
BLOCK DIAGRAM
PLL1NHIB
HLOCK-CAP
FH-MIN
H-OUTEM
H-POS
PLL1F
PLL2C
H-DUTY
35
15
12
11
10
14
13
3
1
2
20
21
HSYNC
17
INPUT INTERFACE
1st PHASE COMP
VCO
2nd PHASE COMP
PHASE SHAPER
OUTPUT BUTTER
H-OUTCOL 23 SBLKOUT 39
XRAY-IN 16
LOCK DETECT VREF
HFLY
R0
C0
B+ADJ I SENSE B+OUT
42
+ R
HREF HGND VREF VGND
5
H-VREF
4
BANDGAP
26
V-VREF
SAFETY PROCESSOR VCC OUTPUT INHIBITION
+ EA -
22
S
24
41 40
PARABOLA GENERATOR
COMP REGIN
VSYNC
34
INPUT INTERFACE
VERTICAL OSCILLATOR
S CORRECTION
36
E/WOUT
19
18
27
25 VAGCCAP
29 VS-CENT
28 VS-AMP
33
31
30
32
38 KEYST
37 EW-AMP
V-AMP
V-POS
VOUT
2
VCAP
GND
VCC
V DCOUT
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
PIN CONFIGURATIONS
1 2
PLL2C H-DUTY HFLY HGND
I-SENSE 42 COMP REGIN 41
3 4 5 6 7
40 39 38 37 36
B+ ADJ KEYST E/W-AMP E/WOUT
HREF NC NC
8 9
NC
PLL1-INHIB 35
KB2147
NC
VSYNC 34 V-POS 33 32 31
10 C0 11 R0 12 PLL1F 13
V-DCOUT
V-AMP VOUT VS-CENT
HLOCK-CAP
30 29
14 15 16
FH-MIN H-POS
VS-AMP 28 27
XRAY-IN
VCAP
17 HSYNC 18
VREF 26 VAGCCAP 25 VGND 24 SBLK-OUT 23 B+ OUT 22
VCC GND H-OUTEM
19 20
21 H-OUTCOL
3
KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
PIN DESCRIPTION
Table 1. Pin Description Pin No 1 2 Pin Name PLL2C H-DUTY Second PLL Loop Filter DC Control of Horizontal Drive Output Pulse Duty-cycle. If this pin grounded, the horizontal and vertical outputs are inhibited. By connecting a capacitor on the this pin a soft-start function may be realized on h-drive output. Horizontal Flyback Input (Positive Polarity) Horizontal section ground. Must be connected only to components related to H blocks. Horizontal section reference voltage. Must be filtered by capacitor to pin 4. Description
3 4 5 6 7 8 9 10 11 12 13
H-FLY H-GND H-REF NC NC NC NC C0 R0 PLL1F HLOCK-CAP
Horizontal Oscillator Capacitor. To be connected to pin 4. Horizontal Oscillator Resistor. To be connected to pin 4. First PLL Loop filter. To be connected to pin 4. First PLL Lock/Unlock Time Constant Capacitor. Capacitor filtering the freqency change detected on pin 13. When frequency is changing, a blanking pulse is generated on pin 23, the duration of this pulse is proportionnal to the capacitor on pin 13. To be connected to pin 4. DC Control for free running frequency setting. Comming from DAC output or DC voltage generated by a resistor bridge connected between pin 5 and 4. DC Control for Horizontal Centering X-RAY Protection input (with Internal latch function) TTL Horizontal Sync Input Supply Voltage (12V Typical) Ground Horizontal Drive Output (emiter of internal transistor) Horizontal Drive Output (open collector of internal transistor) B+ PWM Regulator output Safety Blanking output. Activated during frequency changes, when X-RAY input is triggered or when VS is too low. Vertical Section Signal Ground Memory Capacitor for Automatic Gain Control Loop in Vertical Ramp Generator Vertical Section Reference Voltage
14 15 16 17 18 19 20 21 22 23 24 25 26
FH-MIN H-POS XRAY-IN H-SYNC Vcc GND H-OUTEM H-OUTCOL B+OUT SBLK OUT VGND VAGCCAP VREF
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DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
Table 1. Pin Description (Continued) Pin No 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Pin Name VCAP VS-AMP VS-CENT V-OUT V-AMP VDCOUT V-POS V-SYNC PLL1INHIB E/WOUT E/W-AMP KEYST B+ADJ REGIN COMP ISENSE Description Vertical Sawtooth Generator Capacitor DC Control of Vertical S-Shape Amplitude DC Control of Vertical S-Centering Vertical Ramp Output (with frequency independant amplitude and S-Correction) DC Control of Vertical Amplitude Adjustment Vertical Position Reference Voltage Output Temperature matched with V-AMP output DC Control of Vertical Position Adjustment Vertical TTL Sync Input TTL Input for PLL1 Output Current Inhibition (To be used in case of comp sync input signal) East/West Pincushion Correction Parabola Output DC Control East/West Pincushion Correction Amplitude DC Control of Keystone Correction DC Control of B+ Adjustment Regulation Input of B+ Control Loop B+ Error Amplifier Output for Frequency Compensation and Gain Setting Sensing of External B+ Switching Transistor Emitter Current
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KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
ABSOLUTE MAXIMUM RATINGS
NO 1 2 Supply Voltage (Pin 18) Maximum Voltage on Pins 2, 14,15, 28, 29, 31, 33, 37, 38, 39 Pin 3 Pins 17, 34 Pin 40 Pin 42 Pin 16 ESD Succeptibility Human Body Model, 100pF Discharge through 1.5k EIAJ Norm, 200pF Discharge through 0 Storage Temperature Maximum Operating Junction Temperature Operating Temperature Item Symbol VCC VIN Spec 13.5 8 1.8 6 8 8 6 2 300 Tstg Tj Topr -40, +150 150 0, +70 Unit V V
3
VESD kV V C C C
4 5 6
THERMAL CHARACTERISTICS
NO Item Symbol Spec Unit
1
Junction-Ambient Thermal Resistance
ja
65
C/W
HORIZONTAL SECTION
OPERATING CONDITIONS
Parameter VCO Oscillator Resistor Min Value (Pin 11) Oscillator Capacitor Min Value (Pin 10) Maximum Oscillator Frequency Horizontal Sync Input Voltage (Pin 17) INPUT SECTION Minimum Input Pulses Duration (Pin 17) Maximum Input Signal Duty Cycle (Pin 17) OUTPUT SECTION Maximum Input Peak Current (Pin 3) Horizontal Drive Output Max Current Pin 20 Pin 21 DC CONTROL VOLTAGE I3m HOI1 HOI2 Sourced current Sink current 2 20 20 mA mA mA MinD Mduty 1 25 S % R0min C0min Fmax HsVR 0 6 390 70 5.5 k pF kHz V Symbol Conditions Min Typ Max Unit
6
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
Parameter DC Voltage Range on DC Controls (Pins 2-14-15)
Symbol DCadj
Conditions VREF-H = 8V
Min 2
Typ
Max 6
Unit V
7
KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
ELECTRICAL CHARACTERISTICS
(Vcc = 12 V, Tamb = 25 C)
Table 2. Horizontal Section Electrical Characteristics
Parameter SUPPLY AND REFERENCE VOLTAGES Supply Voltage (Pin 18) Supply Current (Pin 18) Reference Voltage for Horizontal Section (Pin 5) Max Sourced Current on VREF-H (Pin 5) Reference Voltage for Vertical Section (Pin 26) Max Sourced Current on VREF-V (Pin 26) INPUT SECTION/PLL1 Horizontal Input Threshold Voltage (Pin 17) VCO Control Voltage (Pin 12) VCO Gain, dF/dV (Pin 12) Horizontal Phase Adjustment (Pin 15) Free running frequency adjustment (pin 14) PLL1 Capture Range Fh Min Fh Max PLL 1 Inhibition (Pin 35) PLL ON PLL OFF VINTH VVCO VCOG Hph FFadj CR Low level voltage High level voltage VREF-H = 8V R0 = 6.49k, C0 = 680pF % of Horizontal period Without H-sync signal See conditions on Figure 1 28 70 PLLinh V35 V35 0.8 2 V V kHz kHz 0.8 2 1.6 to 6.2 15 10 20 V kHz/V % % V VCC ICC VREF-H IREF-H VREF-V IREF-V 7.4 8 See Figure 1 7.4 10.8 12 40 8 13.2 60 8.6 2 8.6 2 V mA V mA V mA Symbol Conditions Min Typ Max Unit
SECOND PLL AND HORIZONTAL OUTPUT SECTION Flyback Horizontal Threshold Voltage (Pin 3) Horizontal Jitter Horizontal Drive Output Duty-cycle (Pin 20 or 21) Minimum Maximum Horizontal Drive Low Level Output Voltage FBth Hjit 0.65 0.75 150 V ppm
HDmin HDmax
V2 = 2V V2 = 2V Pin 20 to GND, V21-V20, IOUT = 20mA
45
30 50 1.1
35
% % V
HDvd
1.7
8
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
Table 2. Horizontal Section Electrical Characteristics (Continued)
Parameter Horizontal Drive High Level Output Voltage (output on Pin 20) X-RAY Protection Input Threshold Voltage (Pin 16) Maximum Output Current on Safety Blanking Output Low-Level Voltage on Safety Blanking output Internal Clamping Voltage on 2nd PLL Loop Filter Output (Pin 1) Pin2 Threshold Voltage to Stop H-out, V-out B+out and to Activate S-BLK (OFF Mode when V2 < VOFF) Symbol HDem Conditions Pin 21 to VCC, IOUT = 20mA Min 9.5 Typ 10 Max Unit V
XRAYth ISblkO VSblkO Vphi2 VOFF I23 V23 with I23 = 10mA Vmin Vmax V2
1.6
1.8 10
V mA V V V
0.25 1.6 3.2 1
0.5
VERTICAL SECTION
OPERATING CONDITIONS
Parameter Vertical Sync Input Voltage (Pin 34) Symbol VSVR Conditions Min 0 Typ Max 5.5 Unit V
ELECTRICAL CHARACTERISTICS (VCC = 12V, Tamb = 25 C) Table 3. Vertical Section Electrical Characteristics
Parameter Pin 23-28-29 bias current (Currnt sourced by PNP base) Pin 31 bias Current (Current sunk by PNP base) Vertical sync input threshold voltage Vertical sync input bias current (Current sourced by PNP base) Voltage at ramp bottom point Voltage at ramp top point (with sync) Voltage at ramp top point (without sync) Symbol IBIASP IBIASN VSth VSBI VRB VRT VRTF Conditions For V23-28-29 = 2V For V31 = 6V Pin 34; High-level Low -level V34 = 0.8V On Pin 27 On Pin 27 On Pin 27 2 0.8 1 2/8 5/8 VRT-0.1 Min Typ 2 0.5 Max Unit C C V V A VREF-V VREF-V V
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KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
Table 3. Vertical Section Electrical Characteristics (Continued)
Parameter Output current range on pin 27 during ramp charging time. Current to charge capacitor between pin 27 and ground Symbol IR27 Conditions V28 = 2V (2), 2V < V27 < 5V Min current Max current Pin 34 Pin 34 On pin 27, with 150nF cap Measured on pin 27 Cosc (pin 27) = 150nF With C27 = 150nF 5% On pin 30 see (1) (0C < Tamp < 70C ) V31 = 6V, C27 = 150nF 50Hz < F < 120Hz V28 = 2V, V25 = X = 4.3V 2.5V < V27 < 4.5V 50 V33 = 2V V33 = 4V V33 = 6V 3.2 3.5 3.8 2 V31 = 2V V31 = 4V V31 = 6V 2 3 4 7/16 5 -4 +4 3 3.5 4 2.2 3.3 50 100 200 0.5 85 100 120 Min Typ Max Unit
100 5
15 135
20
A A S
Minimum Vertical sync pulse width Vertical sync input maximum duty-cycle Vertical Sawtooth discharge time duration Vertical Free running frequency ( V28 = 2V ) AUTO-SYNC frequency see (3) Ramp Amplitude Thermal Drift Ramp Amplitude Drift Versus Frquency Ramp Linearity on Pin 27 127 / I27
VSW VSmDut VSTD VFRF ASFR RATD RAFD RIin
15
% S Hz Hz ppm/ C ppm/ Hz %
Minimum Load on Pin 25 for less than 1% Vertical Amplitude Drift Vertical Position Adjustment Votlage on pin 32
RIoad Vpos
k V V V mA V V V VREF-V mA % % V V V
3.65
Max Current on Vertical Position Control output (pin32) Vertical Output Votlage (on pin 30) (peak to peak voltage on pin 30) DC Votlage on Vertical Output (pin 30) Vertical output maximum output current Max vertical S-Correction Amplifitude (V28 = 2V inhibits S-CORR; V28 = 6V gives maximum S-CORR) (see figure 3) C-Correction adjustment range voltage on pin 27 for maximum slope on the ramp (with S-Correstion ) (see figure 4)
IVPOS Vor
3.75
VOUTDC See (4) V0I dVS On Pin 30 V/V30pp at T/4 V/V30pp at 3T/4 V29 = 2V V29 = 4V V29 = 6V
Ccorr
10
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
B+ SECTION
OPERATING CONDITIONS
Parameter Maximum Error Amplifier Output Current Minimum Feedback Resistor Symbol EAOI Conditions Source by pin 14 Sunk by pin 41 5 Min Typ Max 0.5 2 Unit mA mA k
FeedRes Resistor between pins 40 and 41
ELECTRICAL CHARACTERISTICS (VCC = 12V, Tamb = 25 C) Table 4. B+ Section Electrical Characteristics
Parameter Error Amplifier Open loop gain Symbol OLG
(1)
Conditions At low frequency see
Min
Typ 85
Max
Unit dB
Unity gain bandwidth Regulation input bias current Maximum guaranted error amplifier output current Current Sense Input Voltage Gain Max Current Sense Input Threshold Votlage Current Sense Input Bias Current Maximum External Power Transistor on Time B+ Output Low Level Saturation voltage Internal Reference voltage Internal Reference Voltage Adjustment
UGBW IRI EAOI CSG MCEth ISI Tonmax B+OSV IVref VRERADJ
see (1) Current sourced by pin 40 (PNP base) Current sourced by pin 41 Current sink by pin 41 Pin 42 Pin 42 Current sunk by pin 42 (NPN base) % of H-period @ f0 = 27kHz V22 with I22 = 10mA On error amp (+) input for V39 = 4V 2V < V39 < 6V 0.5 2
6 0.2
MHz A mA mA
3 1.2 1 75 0.25 4.9 14 V A % V V %
EAST/WEST PARABOLA GENERATOR
ELECTRICAL CHARACTERISTICS (VCC = 12V, Tamb = 25 C) Table 5. East/West Parabola Generator Electrical Characteristics
Parameter Parabola symetry adjustment capability (for Keystone adjustment; with pin 38) Symbol Vsym Conditions See figure 2; Internal voltage V38 = 2V V38 = 4V V38 = 6V Min Typ Max Unit V 3.2 3.5 3.8
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KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
Table 5. East/West Parabola Generator Electrical Characteristics (Continued)
Parameter Keystone adjustment capability B/A ratio A/B ratio Parabola amplitude adjustment capability Maximum amplitude on pin 36 Maximum ratio between max and min NOTE; 1. These parameters are not tested on each unit. They are measured during our internal qualification procedure which includes characterization on batches comming from comers of our processes and also temperature characterization. 2. When 2V are applied on pin 28 (Vertical S-Correction control ), then the S-Correction is inhibited, consequently he t sawtooth have a linear shape. 3. It is the frequency range for which the VERTICAL OSCILLATOR will automatically synchorize, using a single capacitor value on Pin 27 and with a constant ramp amplitude. 4. Typically 3.5V for vertical reference voltage typical value (8V). Symbol Kadj Conditions See figure 2; V37 = 4V V38 = 2V V38 = 6V V38 = 4.3V, V28 = 2V V37 = 2V 2V < V37 < 6V 3.3 2.4 Min Typ 2.3 2.0 V 3.8 3 4.3 Max Unit
Paramp
12
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
KB2147
APPLICATION CIRCUIT
1 PLL2C 22nF 30k 1/8W 2 H-DUTY AFC 24k 1/6W 1k 1/6W 1N4148 1nF 50v 103 1N4148 5 HREF + 100uF 16V 20k 1/4W MF 6 KEYST 5.6k 1/6W 3 COMP I-SENSE
42 I-SENSE 41 1M 40 20k R + D AFC C H-SIZE 38 56K 1/6W 100nF KEY-STONE 37 H-REF
HFLY
REGIN R
2.20nF 100V
4 HGND B+ ADJ
39
H-ref
S4
E/W-AMP
22K 1/6W S-PIN
7 S3 E/WOUT
36 E/W OUT 1N4148 36K 1/6W 1uF
V-sync
8
35 S2 PLL1-INHIB 34 S1 VSYNC 1K 1/6W 33 C0 V-POS
82k 1/6W 5V
9
10 680pF MONO 5.6k 1/4W MF 11 R0 4.7uF + 220nF MP
V-posi
10nF
1uF + 6.8k
KB2147
V-DCOUT
32
12k 1/6W To vertical Amp(+)
1k 1/6w
12 PLL1F V-AMP
31 V-SIZE
10nF
1.2k 1/6W 22nF MP
13 HLOCK-CAP 14 FH-MIN VS-CENT 18k 1/ 6W + VOUT
30
33k 1/6W 10k 1/6W To vertical Amp
29 47K 1/6W V-LIN
H-POSI
4.7k 1/6W
15 H-POS VS-AMP
28 47k 15k 1/6W
27k 1/ 6W
10uF
16 XRAY-IN 1N4148 VCAP
27 22k 1/6W
220 nF 64V
1K 1/6W 12V H-SYNC1 100pF 50V + 470uF 16V 1.5k 1/6W 1.8k 1/6W
17
HSYNC
26 VREF 100uF 16V + 0.47uF +
Vref
18 VCC VAGCCAP
25
19
GND
24 VGND 12V
20 H-OUTEM SBLK-OUT
23 47k 1/6W
21 H-OUTCOL 100nF 100V
B+ OUT
22 3.3k 1/6W
B+ DRIVE
H-DRIVE
Figure 1. Application Circuit
13
KB2147
DEFLECTION PROCESSOR FOR MULTISYNC MONITORS
V36 A
V38 = 2V
B
V38 = 4V V38 = 6V
V27
3.8 3.5 3.2
Figure 2. Keystone Adjusment
V27
4.0V 3.5V 3.0V
0
T
Figure 3. Amplitude Adjusment
V30 aV
V30pp
0
T/4
T/2
3T/2
T
aV increase when V28 increase. aV = 0 when V28 = 0.
Figure 4. Correction Adjusment
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