TDA8214B.PDF

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HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT
TDA8214B
HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT
. DIRECT FRAME-YOKE DRIVE ( ± 1A)
. FRAME OUTPUT PROTECTION AGAINST
SHORT CIRCUITS
. PLL
. VIDEO IDENTIFICATION CIRCUIT
. SUPER SANDCASTLE OUTPUT
. VERY FEW EXTERNAL COMPONENTS
. VERY LOW COST POWER PACKAGE
POWERDIP 16 + 2 + 2
(Plastic Package)
ORDER CODE : TDA8214B
DESCRIPTION
The TDA8214B is an horizontal and vertical deflec-
tion circuit with super sandcastle generator and
video identification output. Used with TDA8213
(Video & Sound IF system) and TDA8217 (Pal
decoder and video processor), this IC permits a
complete low-cost solution for PAL applications.
PIN CONNECTIONS
V CC1
1
20
VIDEO INPUT
FRAME OSCILLATOR
2
19
SUPER SANDCASTLE OUTPUT
V CC2
3
18
LINE FLYBACK INPUT
FRAME FLYBACK GENERATOR
4
17
LINE OUTPUT
GROUND
5
16
GROUND
GROUND
6
15
GROUND
POWER AMPLIFIER INPUT
7
14
RC NETWORK
VIDEO IDENTIFICATION OUTPUT
8
13
LINE SAWTOOTH INPUT
FRAME POWER SUPPLY
9
12
PHASE DETECTOR
FRAME OUTPUT
10
11
LINE OSCILLATOR
September 1993
1/9
. COMPOSITE VIDEO SIGNAL INPUT CAPA-
BILITY
11039363.002.png
TDA8214B
BLOCK DIAGRAM
Vcc2
Vcc1
1
2
9
3
4
Video
Identification
Frame
blanking
detector
Frame
oscillator
Power
stage
Flyback
8
generator
YOKE
+
-
10
19
S
7
Frame-Sy nchro
generator
2
s
Line flyback
Output
stage
17
Video
Input
detector
20
Phase
detector
18
Input
stage
Burst gate pulse
generator
Line
oscillator
2 m s
14
13
12
11
Line
Flyback
Vcc1
Vcc1
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V CC 1
Supply Voltage
30
V
V CC 2
Flyback Generator Supply Voltage
35
V
V9
Frame Power Supply Voltage
60
V
I10 NR
Frame Output Current (non repetitive)
±
1.5
A
I10
Frame Output Current (continuous)
±
1
A
V17
Line Output Voltage (external)
60
V
I P 17
Line Output Peak Current
0.8
A
I C 17
Line Output Continuous Current
0.4
A
T STG
Storage Temperature
-40 to + 150
o
C
T J
Max Operating Junction Temperature
+ 150
o C
T AMB
Operating Ambient Temperature
0 to 70
o
C
THERMAL DATA
Symbol
Parameter
Value
Unit
R TH(j-c)
Max Junction-case Thermal Resistance
10
o C/W
R TH(j-a)
Typical Junction-ambient Thermal Resistance
(Solderedon a 35
m thick45cm 2 PCBoard copperarea)
40
o C/W
m
T J
Max Recommended Junction Temperature
120
o C
2/9
m
11039363.003.png
TDA8214B
ELECTRICAL CHARACTERISTICS
V CC1 = 10V, T AMB =25 o C (unless otherwise specified )
Symbol
Parameter
Min. Typ. Max. Unit
SUPPLY (Pin 1)
I CC1
Supply Current
15
mA
V CC1
Supply Voltage
9
10
10.5
V
VIDEO INPUT (Pin 20)
V20
Reference Voltage (I20 = -1
m
A)
1.4
1.75
2
V
MWF
Minimum Width of Frame Pulse (When synchronized with TTL signal)
50
m
s
LINE OSCILLATOR (Pin 11)
LT11
Low Threshold Voltage
2.8
3.2
3.6
V
HT11
High Threshold Voltage
5.4
6.6
7.8
V
BI11
Bias Current
100
nA
DR11
Discharge Impedance
1.0
1.4
1.8
k
W
FLP1
Free Running Line Period
(R = 34.9k
62
64
66
m
s
W
Tied to V CC1 , C = 2.2nF Tied to Ground)
FLP2
Free Running Line Period (R = 13.7K
W
, C = 2.2nF)
27
m
s
OT11
Oscillator Threshold for Line Output, Pulse Triggering
4.6
V
F
Dq
Horizontal Frequency Drift with Temperature (see application)
2
Hz/ o C
LINE OUTPUT (Pin 17)
LV17
Saturation Voltage (I 17 = 200mA)
1.1
1.6
V
OPW
Output Pulse width (line period = 64
m
s)
27
29
31
m
s
LINE SAWTOOTH INPUT (Pin 13)
V13
Bias Voltage
1.8
2.4
3.2
V
Z13
Input Impedance
4.5
5.8
8
k
W
PHASE DETECTOR (Pin 12)
I12
Output Current During Synchro Pulse
250
350
500
m
A
RI12
Current Ratio (positive/negative)
0.95
1
1.05
LI12
Leakage Current
-2
+2
m
A
CV12
Control RangeVoltage
2.60
7.10
V
VIDEO IDENTIFICATION (Pin 8)
Low Level Output when the line syn. tip is centered in the line retrace
V H8
Without video signal (I 8 = -500
m
A)
4.5
6.3
V
V L8
With video signal (I 8 =50
m
A)
0.6
0.9
V
FRAME OSCILLATOR (Pin 2)
LT2
Low Threshold Voltage
1.6
2.0
2.3
V
HT2
High Threshold Voltage
2.6
3.1
3.6
V
DIF2
LT2 - HT2
1.0
V
BI2
Bias Current
30
nA
DR2
Discharge Impedance
300
470
700
W
FFP1
Free Running Frame Period
(R = 845k
20.5
23
25
ms
W
Tied to V CC1 , C = 180nF Tied to Ground
MFP
Minimum Frame Period (I20 = -100
m
A) with the Same RC
12.8
ms
FFP2
Free Running Frame Period (R = 408k
W
, C = 220nF)
14.3
ms
FPR
Frame Period Ratio = FFP/MFP
1.7
1.8
1.9
FG
Frame Saw-tooth Gain Between Pin 1 and non Inverting Input of the
Frame Amplifier
-0.4
F
Dq
Vertical Frequency Drift with Temperature (see application)
4.10 -3
Hz/ o C
3/9
D
D
11039363.004.png
TDA8214B
ELECTRICAL CHARACTERISTICS (continued)
V CC1 = 10V, T AMB =25 o C (unless otherwise specified )
Symbol
Parameter
Min. Typ. Max. Unit
FRAME POWER SUPPLY (Pin 9)
V9
Operating Voltage (with flyback Generator)
10
58
V
I9
Supply Current (V9 = 30V)
11
22
mA
FLYBACK GENERATOR SUPPLY (Pin 3)
V CC2
Operating Voltage
10
30
V
FRAME OUTPUT (Pin 10)
Saturation Voltage to Ground (V9 = 30V)
LV10A
I10 = 0.1A
0.06
0.6
V
LV10B
I10 = 1A
0.37
1
V
Saturation Voltage to V9 (V9 = 30V)
HV10A I10 = -0.1A
1.3
1.6
V
HV10B I10 = -1A
1.7
2.4
V
Saturation Voltage to V9 in Flyback Mode (V10 > V9)
FV10A I10 = 0.1A
1.6
2.1
V
FV10B I10 = 1A
2.5
4.5
V
FLYBACK GENERATOR (Pin 3 and Pin 4)
Flyback Transistor on (output = high state), V CC2 = 30V V4/3 with
F2DA
I 4
"
3 = 0.1A
1.5
2.1
V
F2DB
I 4 "
3 =1A
3.0
4.5
V
Flyback Transistor on (output = high state), V CC2 = 30V V3/4 with
FSVA
I 3 " 4 = 0.1A
0.8
1.1
V
FSVB
I 3 " 4 =1A
2.2
4.5
V
Flyback Transistor off (output = V9 - 8V), V9 - V CC2 = 30V
FCI
Leakage Current Pin 3
170
m
A
SUPER SANDCASTLE OUTPUT (Pin 19)
Output Voltages (R load = 2.2k
W
)
SANDT2 Frame blanking pulse level
2
2.5
3
V
SANDL2 Line blanking pulse level
4
4.5
5
V
BG2
Burst key pulse level
8
9
V
Pulses width and timing
SC3
Delay between middle of sync pulse and leading edge of burst key pulse
2.3
2.7
3.1
m
s
SC2
Duration of burst key pulse
Vertical blanking pulse width
3.7
4
Note 1
5
m s
LINE FLYBACK INPUT (Pin 18)
Switching level
2
V
Maximum imput current at V PEAK = 800V
8
mA
Limiting voltage at maximum current
4.3
V
s
Notes : 1. Width of vertical blanking pulse on SSC output is proportional to the frame flyback time, the switching level is V CC 2-2V BE and
the other input of the comparator is tied to the frame amplifier output. Application circuit uses the frame flyback generator.
2. An RC network is connected to this input. Typical value for the resistor is 27k
t
RC network time constant (Note 2)
6
m
and 220pF for the capacitor. A different time
constant for RC changes the delay between the middle of the line synchro pulse and the leading edge of the burst key pulse but
also the duration of the burst key pulse.
W
4/9
11039363.005.png
TDA8214B
GENERAL DESCRIPTION
- A line phase detector and a voltage control oscil-
lator
- A super sandcastle generator
- Video identification output.
The slice level of sync-separation is fixed by value
of the external resistors R1 and R2. V R is an
internally fixed voltage.
The sync-pulse allows the discharge of the capaci-
tor by a 2 x I current. A line sync-pulse is not able
to discharge the capacitor under V Z /2. A frame
sync-pulse permits the complete discharge of the
capacitor, so during the frame sync-pulse Q 3 and
Q 4 provide current for the other parts of the circuit.
The TDA8214B performs all the video and power
functions required to provide signals for the line
driver and frame yoke.
It contains:
- A synchronization separator
- An integrated frame separator without external
components
- A saw-tooth generator for the frame
- A power amplifier for direct drive of frame yoke
(short circuit protected)
- An open collector output for the line driver
Figure 1 : Synchronization Separator Circuit
SL1
SL2
VR
20
Video
R1
R2
Figure 2 : Frame Separator
Vz
Q3
Q4
I
ST1
ST2
Vz /2
SL1
3I
5/9
11039363.001.png

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