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參數(shù)資料
| 型號： | TEA2037A |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 偏轉(zhuǎn) |
| 英文描述： | HORIZ/VERT DEFLECTION IC, PDIP16 |
| 封裝： | BATWING, DIP-16 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 148K |
| 代理商： | TEA2037A |
Obsolete
Product(s)
- Obsolete
Product(s)
5/14
TEA2037A
Table 12. Frame Output (Pin 8)
Table 13. Flyback Generator (Pin 2 and 3)
The TEA2037A performs all the video and power
functions required to provide signals for the direct
drive of the line darlington and frame yoke.
It contains:
– A shunt regulator
– 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 darlington
drive
– A line phase detector and a voltage control
oscillator.
The slice level of sync-separation is fixed by value
of the external resistors R1 and R2. VR is an inter-
nally fixed voltage.
The sync-pulse allows the discharge of the capac-
itor by a 2 x 1 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.
Symbol
Parameter
Min.
Typ.
Max.
Unit
LV8A
LV8B
Saturation Voltage to Ground (V7 = 30V)
I8 = 0.1
I8 = 1A
0.06
0.37
0.6
1
V
HV8A
HV8B
Saturation Voltage to V7 (V7 = 30V)
I8 = –0.1
I8 = –1A
1.3
1.7
1.6
2.4
V
FV8A
FV8B
Saturation Voltage to V7 in Flyback Mode (V8 > V7)
I8 = 0.1
I8 = 1A
1.6
2.5
2.1
4.5
V
Symbol
Parameter
Min.
Typ.
Max.
Unit
F2DA
F2DB
FSVA
FSVB
Flyback Transistor on (output = high state) (V2 = 30V)
V3/2 with I3 → 2 = 0.1A
I3 → 2 = 1A
V2/3 with I3 → 2 = 0.1
I3 → 2 = 1A
1.5
3.0
0.8
2.2
2.1
4.5
1.1
4.5
V
Flyback Transistor off (output = V7 - 8V) (V7 = V2 = 30V)
FCI
Leakage Current Pin 2
170
A
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