TDA8214B
HORIZONTAL AND VERTICAL DEFLECTION CIRCUIT
..
.
..
..
.
DIRECT FRAME-YOKE DRIVE (± 1A)
COMPOSITE VIDEO SIGNAL INPUT CAPABILITY
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 deflection 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.
VCC1
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
10
11
LINE OSCILLATOR
FRAME OUTPUT
September 1993
8214B-01.EPS
PIN CONNECTIONS
1/9
TDA8214B
BLOCK DIAGRAM
Vcc2
Vcc1
Video
Identification
1
2
8
Frame
blanking
detector
Frame
oscillator
19
Σ
2µs
Video
Input
Line flyback
detector
4
Flyback
generator
Power
stage
+
-
YOKE
10
7
Frame-Synchro
generator
20
18
3
9
Output
stage
17
Phase
detector
Burst gate pulse
generator
Input
stage
Line
oscillator
2µs
14
Line
Flyback
13
12
11
8214B-02.EPS
Vcc1
Vcc1
Symbol
Parameter
Value
Unit
30
V
Flyback Generator Supply Voltage
35
V
Frame Power Supply Voltage
60
V
± 1.5
A
VCC1
Supply Voltage
VCC2
V9
I10NR
Frame Output Current (non repetitive)
I10
Frame Output Current (continuous)
±1
A
V17
Line Output Voltage (external)
60
V
IP17
Line Output Peak Current
0.8
A
IC17
Line Output Continuous Current
0.4
A
TSTG
Storage Temperature
TJ
TAMB
-40 to + 150
o
C
Max Operating Junction Temperature
+ 150
o
C
Operating Ambient Temperature
0 to 70
o
C
8214B-01.TBL
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
RTH(j-c)
RTH(j-a)
TJ
2/9
Parameter
Value
Unit
10
o
Typical Junction-ambient Thermal Resistance
40
o
Max Recommended Junction Temperature
120
Max Junction-case Thermal Resistance
2
(Soldered on a 35µm thick 45cm PC Board copper area)
C/W
C/W
o
C
8214B-02.TBL
Symbol
TDA8214B
ELECTRICAL CHARACTERISTICS
VCC1 = 10V, TAMB = 25oC (unless otherwise specified )
Symbol
Parameter
Min.
Typ.
Max.
Unit
9
15
10
10.5
mA
V
1.4
50
1.75
2
V
µs
2.8
5.4
3.2
6.6
100
1.4
64
3.6
7.8
V
V
nA
kΩ
µs
SUPPLY (Pin 1)
ICC1
VCC1
Supply Current
Supply Voltage
VIDEO INPUT (Pin 20)
V20
MWF
Reference Voltage (I20 = -1µA)
Minimum Width of Frame Pulse (When synchronized with TTL signal)
LINE OSCILLATOR (Pin 11)
LT11
HT11
BI11
DR11
FLP1
FLP2
OT11
∆F
∆θ
Low Threshold Voltage
High Threshold Voltage
Bias Current
Discharge Impedance
Free Running Line Period
(R = 34.9kΩ Tied to VCC1, C = 2.2nF Tied to Ground)
Free Running Line Period (R = 13.7KΩ, C = 2.2nF)
Oscillator Threshold for Line Output, Pulse Triggering
1.0
62
Horizontal Frequency Drift with Temperature (see application)
1.8
66
27
4.6
µs
V
2
Hz/oC
LINE OUTPUT (Pin 17)
LV17
OPW
Saturation Voltage (I17 = 200mA)
Output Pulse width (line period = 64µs)
27
1.1
29
1.6
31
V
µs
1.8
4.5
2.4
5.8
3.2
8
V
kΩ
250
0.95
-2
2.60
350
1
500
1.05
+2
7.10
µA
4.5
6.3
0.6
LINE SAWTOOTH INPUT (Pin 13)
V13
Z13
Bias Voltage
Input Impedance
PHASE DETECTOR (Pin 12)
I12
RI12
LI12
CV12
Output Current During Synchro Pulse
Current Ratio (positive/negative)
Leakage Current
Control RangeVoltage
µA
V
VIDEO IDENTIFICATION (Pin 8)
VH8
VL8
Low Level Output when the line syn. tip is centered in the line retrace
Without video signal (I8 = -500µA)
With video signal (I8 = 50µA)
0.9
V
V
FRAME OSCILLATOR (Pin 2)
MFP
FFP2
FPR
FG
∆F
∆θ
Low Threshold Voltage
High Threshold Voltage
LT2 - HT2
Bias Current
Discharge Impedance
Free Running Frame Period
(R = 845kΩ Tied to VCC1, C = 180nF Tied to Ground
Minimum Frame Period (I20 = -100µA) with the Same RC
Free Running Frame Period (R = 408kΩ, C = 220nF)
Frame Period Ratio = FFP/MFP
Frame Saw-tooth Gain Between Pin 1 and non Inverting Input of the
Frame Amplifier
Vertical Frequency Drift with Temperature (see application)
1.6
2.6
300
20.5
1.7
2.0
3.1
1.0
30
470
23
12.8
14.3
1.8
-0.4
4.10-3
2.3
3.6
700
25
V
V
V
nA
Ω
ms
ms
ms
1.9
Hz/oC
3/9
8214B-03.TBL
LT2
HT2
DIF2
BI2
DR2
FFP1
TDA8214B
ELECTRICAL CHARACTERISTICS (continued)
VCC1 = 10V, TAMB = 25oC (unless otherwise specified )
Symbol
Parameter
Min.
Typ.
Max.
Unit
11
58
22
V
mA
30
V
0.06
0.37
0.6
1
V
V
1.3
1.7
1.6
2.4
V
V
1.6
2.5
2.1
4.5
V
V
1.5
3.0
2.1
4.5
V
V
0.8
2.2
1.1
4.5
V
V
170
µA
FRAME POWER SUPPLY (Pin 9)
V9
I9
Operating Voltage (with flyback Generator)
Supply Current (V9 = 30V)
10
FLYBACK GENERATOR SUPPLY (Pin 3)
VCC2
Operating Voltage
10
FRAME OUTPUT (Pin 10)
LV10A
LV10B
HV10A
HV10B
FV10A
FV10B
Saturation Voltage to Ground (V9 = 30V)
I10 = 0.1A
I10 = 1A
Saturation Voltage to V9 (V9 = 30V)
I10 = -0.1A
I10 = -1A
Saturation Voltage to V9 in Flyback Mode (V10 > V9)
I10 = 0.1A
I10 = 1A
FLYBACK GENERATOR (Pin 3 and Pin 4)
F2DA
F2DB
FSVA
FSVB
FCI
Flyback Transistor on (output = high state), VCC2 = 30V V4/3 with
I4 → 3 = 0.1A
I4 → 3 = 1A
Flyback Transistor on (output = high state), VCC2 = 30V V3/4 with
I3 → 4 = 0.1A
I3 → 4 = 1A
Flyback Transistor off (output = V9 - 8V), V9 - VCC2 = 30V
Leakage Current Pin 3
SUPER SANDCASTLE OUTPUT (Pin 19)
SANDT2
SANDL2
BG2
SC3
SC2
Output Voltages (R load = 2.2kΩ)
Frame blanking pulse level
Line blanking pulse level
Burst key pulse level
Pulses width and timing
Delay between middle of sync pulse and leading edge of burst key pulse
Duration of burst key pulse
Vertical blanking pulse width
2
4
8
2.5
4.5
9
3
5
V
V
V
2.3
3.7
2.7
4
3.1
5
µs
µs
Note 1
τ
Switching level
Maximum imput current at VPEAK = 800V
Limiting voltage at maximum current
RC network time constant (Note 2)
2
8
4.3
6
V
mA
V
µs
Notes : 1. Width of vertical blanking pulse on SSC output is proportional to the frame flyback time, the switching level is VCC2 - 2VBE 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 27kΩ 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.
4/9
8214B-04.TBL
LINE FLYBACK INPUT (Pin 18)
TDA8214B
GENERAL DESCRIPTION
- A line phase detector and a voltage control oscillator
- A super sandcastle generator
- Video identification output.
The slice level of sync-separation is fixed by value
of the external resistors R1 and R2. VR is an
internally fixed voltage.
The sync-pulse allows the discharge of the capacitor by a 2 x I current. A line sync-pulse is not able
to discharge the capacitor under VZ/2. A frame
sync-pulse permits the complete discharge of the
capacitor, so during the frame sync-pulse Q3 and
Q4 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
R1
8214B-03.EPS
Video
R2
Figure 2 : Frame Separator
Vz
Q3
Q4
I
ST1
ST2
Vz /2
SL1
8214B-04.EPS
3I
5/9
TDA8214B
Figure 3 : Line Oscillator
Vcc1
R5
11
Phase
comparator
output
8214B-05.EPS
R4
The oscillator thresholds are internally fixed by
resistors. The discharge of the capacitor depends
on the internal resistor R4. The control voltage is
applied on resistor R5.
comparator is an alternatively negative and positive
current. The frame sync-pulse inhibits the comparator to prevent frequency drift of the line oscillator
on the frame beginning.
Figure 4 : Phase Comparator
Figure 5
Vcc1
Line
Flyback
Integrated
Flyback
12
13
Vc
SL2
Sync pulse
The sync-pulse drives the current in the comparator. The line flyback integrated by the external net
work gives on pin 13 a saw tooth, the DC offset of
this saw tooth is fixed by VC. The comparator
output provides a positive current for the part of the
signal on pin 13 greater than to VC and a negative
current for the other part. When the line flyback and
the video signal are synchronized, the output of the
6/9
ST1
8214B-07.EPS
8214B-06.EPS
Output
Current
Vc
Line output (Pin 17)
It is an open-collector output. The output positive
pulse time is 29µs for a 64µs period.
The oscillator thresholds are internally fixed by
resistors. The oscillator is synchronized during the
last half free run period. The input current during
the charge of the capacitor is less than 100nA.
TDA8214B
Figure 6 : Frame Oscillator
Vcc1
INPUT CURRENT
COMPENSATION
2
8214B-08.EPS
Frame
sync pulse
To frame amplifier
Frame output amplifier
This amplifier is able to drive directly the frame
yoke. Its output is short circuit and overload protected; it contains also a thermal protection.
The frame blanking is detected by the frame flyback generator. When the output voltage of the
frame amplifier exceeds VCC2-2VBE, the pulse is
detected. The line flyback detection is provided by
a comparator which compares the input line flyback
pulse to an internal reference. The burst gate pulse
position is fixed by the external RC network
(Pin 14). It is referenced to the middle of the line
flyback.
This stage will detect the coincidence between the
line sync pulse (if present) and a 2µs sampling
pulse. This 2µs pulse is positionned at the center
of line sync pulse when the phase loop is locked.
This sampled detection is stored by an external
capacitor Pin 8.
The identification output level is high when video
signal is present.
Important remark : minimum saw-tooth amplitude
on Pin 13 has to be 2VPP (typ. : 2.5VPP).
Figure 7 : Super Sandcastle Generator
Line
Flyback
Input
18
Frame
Output
YOKE
RC
Network
Line
Flyback
Detection
Σ
Frame
Blanking
Detection
Burst gate
pulse
generator
RC
19
SSC
Output
400 µ A
14
8214B-09.EPS
Vcc1
10
Vcc1
7/9
TDA8214B
Figure 8 : Video Identification Circuit (Pin 8)
VH
2.75V
Line retrace
12µs
5.8kΩ
13
Line
Flyback
VR
2.5V
VH
Integrated
Flyback
VL
2.25V
V CC1
VCC1
10kΩ
Sampling Pulse
1N4148
BC547
Line
Sync.
V R1
1kΩ
8
with video
V R1
10µF
I8
Line Sync.
without video
8214B-10.EPS
Video
Ident.
Output
VR
VL
TYPICAL APPLICATION
4.7Ω
Vcc
+24V
100nF
Vcc1
100µF
470µF
100nF
IN4002
820kΩ
10kΩ
27kΩ
IN4148
Video Identification
BC547
220pF
10µF
180nF
47µF
IN4148
100nF
2.2Ω
2
1.5kΩ
220nF
14
560kΩ
20
8
3
9
4
10
120pF
15kΩ
Line
Flyback
TDA 8214B
22nF
Frame Yoke
30 mH, 15Ω
Ipp = 840mA
13
68pF
7
22nF
220kΩ
18
12
100kΩ
11
5
6
15
16
19
1µF
1000µF
220nF
22kΩ
2.2nF
12nF
22kΩ
22kΩ
100Ω
1Ω
Vertical
100Ω Amplitude
Horizontal
Frequency
2.2kΩ
Vcc1
8/9
220kΩ
17
680pF
100kΩ
180pF 4.7kΩ
270Ω
SSC
Vcc1
8214B-11.EPS
Video
Input
1
TDA8214B
I
b1
L
a1
PACKAGE MECHANICAL DATA
20 PINS - PLASTIC POWERDIP
B
b
Z
e
E
Z
e3
D
11
1
10
a1
B
b
b1
D
E
e
e3
F
i
L
Z
Min.
0.51
0.85
Millimeters
Typ.
Max.
1.4
Min.
0.020
0.033
0.5
0.38
Inches
Typ.
Max.
0.055
0.020
0.5
24.8
0.015
8.8
2.54
22.86
0.020
0.976
0.346
0.100
0.900
7.1
5.1
3.3
0.280
0.201
DIP20PW.TBL
Dimensions
PMDIP20W.EPS
F
20
0.130
1.27
0.050
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsibility
for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result
from its use. No licence is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics.
Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all
information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use as critical components in life
support devices or systems without express written approval of SGS-THOMSON Microelectronics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
Purchase of I2C Components of SGS-THOMSON Microelectronics, conveys a license under the Philips
I2C Patent. Rights to use these components in a I2C system, is granted provided that the system conforms to
the I2C Standard Specifications as defined by Philips.
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