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參數(shù)資料
| 型號： | STV7778S |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 32K FLASH |
| 中文描述： | 偏轉(zhuǎn)處理器多同步監(jiān)測 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 125K |
| 代理商： | STV7778S |
HORIZONTAL SECTION
(continued)
Electrical Characteristics
(V
CC
= 12V, T
amb
= 25°C)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
SUPPLY AND REFERENCE VOLTAGES
V
CC
I
CC
V
REF-H
I
REF-H
V
REF-V
I
REF-V
Supply Voltage
Supply Current
Reference Voltage for Horizontal Section
Max Sourced Current on V
REF-H
Reference Voltage for Vertical Section
Max Sourced Current on V
REF-V
Pin 18
Pin 18, See Figure 1
Pin 5
Pin 5
Pin 26
Pin 26
10.8
12
40
8
13.2
60
8.6
2
8.6
2
V
mA
V
mA
V
mA
7.4
7.4
8
INPUT SECTION/PLL1
V
INTH
Hor Input Threshold Voltage Pin 17
Low level voltage
High level voltage
V
REF-H
= 8V, Pin 12
R0 = 6.49k
, C0 = 680pF
% of Hor period
Without H-sync Signal
See conditions on Figure 1
2
0.8
V
V
V
V
VCO
VCOG
Hph
FFadj
CR
VCO Control Voltage
VCO Gain, dF/dV Pin 12
Horizontal Phase Adjustment (Pin 15)
Free Running Frequency Adjustment (Pin 14)
PLL1 Capture Range (F0 = 27kHz)
Fh Min
Fh Max
PLL 1 Inhibition (Pin 35)
PLL ON
PLL OFF
1.6
6.2
15
±
10
±
20
kHz/V
%
%
70
28
kHz
kHz
V
PLLinh
V
35
V
35
2
0.8
SECOND PLL AND HORIZONTAL OUTPUT SECTION
FBth
Hjit
HDmin
HDmin
HDvd
Flyback Input Threshold Voltage
Horizontal Jitter
Minimum Hor Drive Output Duty-cycle
Maximum Hor Drive Output Duty-cycle
Horizontal Drive Low Level Output Voltage
Pin 3
0.65
0.75
V
150
35
ppm
%
%
V
Pin 20 or 21, V
2
= 2V
Pin 20 or 21, V
2
= 6V
V
-V
, Iout = 20mA,
Pin 20 to GND
Pin 21 to V
CC
, I
OUT
= 20mA
45
30
50
1.1
1.7
HDem
Horizontal Drive High Level Output Voltage
(output on Pin 20)
X-RAY Protection Input Threshold Voltage
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)
Pin 2 Threshold Voltage to Stop H-out, V-out
B+out and to Activate S-BLK.OFF Mode when
V
2
< V
OFF
9.5
10
V
XRAYth
ISblkO
Pin 16
I
23
1.6
1.8
10
V
mA
VSblkO
Vphi2
V
23
with I
23
= 10mA
Vmin
Vmax
V
2
0.25
1.6
3.2
1
0.5
V
V
V
V
V
OFF
7
STV7778S
6/11
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