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TEA2128 データシート(PDF) 5 Page - STMicroelectronics

部品番号 TEA2128
部品情報  COLOR TV SCANNING AND POWER SUPPLY PROCESSOR
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TEA2128 データシート(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
(TAMB =25
oC; VCC = 12V; Pulse duration 50% of the amplitude)
Symbol
Parameter
Pins
Test conditions
Min.
Typ.
Max.
Unit
SUPER SANDCASTLE GENERATOR (continued)
Burst Pulse Duration
21
21
q
50Hz
q
60Hz
4.4
3.9
µs
µs
Line Blanking Duration
22
Fixed by flyback
Signal pin 22
Frame Blanking Duration
21
Fixed by the logic
21
Line
FRAME SAW-TO OTH GENERATOR
Low DC Voltage
24
1.3
V
Discharge Current
1
15
60
mA
60Hz Internal
1
8
µA
FRAME LOGIC SYNCH.
Free Running Period
1-24
Without video signal
315
Line
Synchronization Windows
Identification low
Identification 50Hz high
Identification 60Hz high
VCR mode
247
309
247
247
361
315
277
361
Line
Line
Line
Line
FRAME SAFETY INPUT
Switching Threshold
15
Actived without negative pulse
during frame blanking time.
1.3
V
Output current
40
50
67
µA
S.M.P.S.
Input Current
10
VPin 10 =VREF
2
µA
Transfer Characteristic
∆t
Pin 11 /
∆VPin 10
1.9
µs/µV
tON (max.)
11
28
µs
tON (min.)
11
1
µs
High Level Voltage
11
Rload / GND = 500
9V
SOFT- START
VCC Starting Voltage for Line
and S.M.P.S.
13
VCC rising
7
7.4
V
Switch-off Voltage For Line
and S.M.P.S. Output
13
VCC decreasing
6.5
V
Discharge Current
9
q
Before soft start period, VCC >7V
VPin 9 >Vmax. Pin 17
q
During soft start period, VCC >7V
VPin 9 <Vmax. Pin 17
60
2.3
µA
µA
CURRENT REFERENCE
V18 Voltage
18
R18 = 3.32 k
Ω (1%)
1.21
1.3
1.39
V
Temperature Shift
18
∆T= 80oC
± 1
%
GENERAL DESCRIPTION
Introduction
This integrated circuit uses high density I2L bipolar
technologyand combines analog signal processing
with digital processing.
Timing signals are obtained from a voltage-control-
led oscillator (VCO) operating at 500kHz by means
of a cheap ceramic resonator. This avoid the fre-
quency adjustment normally required with line and
frame oscillators.
A chain of dividers and appropriate logic circuitry
produces very accurate defined sampling pulses
and the necessary timing signals.
Internal Functions
- Horizontal scanning processor
- Frame scanning processor
- B class frame output stage using an external
power amplifier with flyback generator
- Line and frame synchronization separation
- Dual phase-locked loop horizontal scanning
TEA2128
5/8


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