STV7778S データシートの表示（PDF） - STMicroelectronics
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STV7778S Datasheet PDF : 11 Pages
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STV7778S
HORIZONTAL SECTION (continued)
Electrical Characteristics (VCC = 12V, Tamb = 25°C)
Symbol
Parameter
Test conditions
SUPPLY AND REFERENCE VOLTAGES
VCC
ICC
VREF-H
IREF-H
VREF-V
IREF-V
Supply Voltage
Supply Current
Reference Voltage for Horizontal Section
Max Sourced Current on VREF-H
Reference Voltage for Vertical Section
Max Sourced Current on VREF-V
Pin 18
Pin 18, See Figure 1
Pin 5
Pin 5
Pin 26
Pin 26
INPUT SECTION/PLL1
VINTH Hor Input Threshold Voltage Pin 17
VVCO
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
Low level voltage
High level voltage
VREF-H = 8V, Pin 12
R0 = 6.49kΩ, C0 = 680pF
% of Hor period
Without H-sync Signal
See conditions on Figure 1
PLLinh PLL 1 Inhibition (Pin 35)
PLL ON
V35
PLL OFF
V35
SECOND PLL AND HORIZONTAL OUTPUT SECTION
FBth Flyback Input Threshold Voltage
Pin 3
Hjit Horizontal Jitter
HDmin
HDmin
HDvd
HDem
Minimum Hor Drive Output Duty-cycle
Maximum Hor Drive Output Duty-cycle
Pin 20 or 21, V2 = 2V
Pin 20 or 21, V2 = 6V
Horizontal Drive Low Level Output Voltage
V21-V20, Iout = 20mA,
Pin 20 to GND
Horizontal Drive High Level Output Voltage Pin 21 to VCC, IOUT = 20mA
(output on Pin 20)
XRAYth
ISblkO
VSblkO
Vphi2
VOFF
X-RAY Protection Input Threshold Voltage
Pin 16
Maximum Output Current on Safety Blanking I23
Output
Low-Level Voltage on Safety Blanking Output V23 with I23 = 10mA
Internal Clamping Voltage on 2nd PLL Loop Filter Vmin
Output (Pin 1)
Vmax
Pin 2 Threshold Voltage to Stop H-out, V-out V2
B+out and to Activate S-BLK.OFF Mode when
V2 < VOFF
Min.
10.8
7.4
7.4
2
1.6
70
2
0.65
45
9.5
Typ.
12
40
8
8
15
±10
±20
0.75
30
50
1.1
10
1.6
0.25
1.6
3.2
1
Max. Unit
13.2 V
60 mA
8.6 V
2 mA
8.6 V
2 mA
0.8 V
V
6.2 V
kHz/V
%
%
28 kHz
kHz
V
0.8
V
150 ppm
35 %
%
1.7 V
V
1.8 V
10 mA
0.5 V
V
V
V
6/11
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