STV6434S Просмотр технического описания (PDF) - STMicroelectronics
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STV6434S Datasheet PDF : 18 Pages
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STV6434
Electrical Characteristics
2.3.1
Video Section (Y1, Y2 and CVBS Signals)
Test conditions: TAMB = 25°C, VCC = 5 V; VCCB = 5 V; RGENERATOR = 75 Ω, RLOUT = 75 Ω for Y1
and CVBS outputs and RLOUT = 150 Ω for Y2 output, unless otherwise specified.
Symbol
Parameter
Test Conditions
Min.
VDCIN DC Input Level, Bottom Clamp input Bottom level, Y1 and CVBS inputs
ICLAMP
Clamping Current, Bottom Clamp
input
at VDCIN - 400 mV
1
ILEAK
Input Leakage Current, Bottom Clamp
input
VIN = VDCIN +1 V
VDCIN_YSYNC DC Input Level
Y2 input, YPrPb mode, black level
CIN
Input Capacitance
VIN
Maximum Input Signal
VCCV = 5 V
DYN Dynamic Output Signal
VCCV = 5 V
Y1F1
-1 dB Bandwidth (Flatness) of Y1 and
CVBS
1H signal
4.0
Y2F1 -1 dB Bandwidth (Flatness) of Y2
2H signal
8
Y1F3 -3 dB Bandwidth of Y1 and CVBS
1H signal
Y2F3 -3 dB Bandwidth of Y2
2H signal
Y1SBR Stopband Rejection
27 MHz versus 100 kHz
Y2SBR Stopband Rejection
54 MHz versus 100 kHz
Flatness Spread of Gain in Video Bands
VIN = 1 VPP
Band = 15 kHz to 5 MHz for Y1
and CVBS
Band = 15 kHz to 10 MHz for Y2
VCTo
Crosstalk Isolation of Y1 (or Y2 or
CVBS) from C and Pr Pb channels
VIN = 0.5 VPP at f = 3.58 MHz,
on either CIN_ENC or PRIN_ENC
or PBIN_ENC input, RLOAD =
150Ω
ROUT Output Resistance
GY
Gain on Y1, Y2 and CVBS channels VIN = 1 VPP at f = 1 MHz
5.5
DCYOUT DC Output Voltage (Y1 and Y2)
Video signal bottom sync pulse at
IC output pins
DCCVBSOUT DC Output Voltage (CVBS)
Video signal bottom sync pulse at
IC output pin
DPHI Differential Phase
VIN = 1 VPP at f = 3.58 MHz
DG
Differential Gain
VIN = 1 VPP at f = 3.58 MHz
LNL
Luminance non-linearity
VSN7
Video S/N Ratio: Y1, C and CVBS
channels (7 MHz filter)
NTC-7 weighting 4.2 MHz
Lowpass
VSN14
Video S/N Ratio: Y2, Pr and Pb
channels (14 MHz filter)
NTC-7 weighting 4.2 MHz
Lowpass
Typ.
2
2
1
2.3
2
1.4
2.8
4.5
9
7
14
- 40
- 40
55
5
6
0.5
1.0
0.2
0.3
0.5
70
67
Max.
10
±0.5
10
6.5
3
3
3
Unit
V
mA
µA
V
pF
VPP
VPP
MHz
MHz
MHz
MHz
dB
dB
dB
dB
Ω
dB
V
V
deg.
%
%
dB
dB
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