STV6435(2009) 데이터 시트보기 (PDF) - STMicroelectronics
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STV6435 Datasheet PDF : 18 Pages
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Electrical characteristics
STV6435
Table 6. Video section (Y and CVBS signals) (continued)
Symbol
Parameter
Test conditions
VSN7
Dtpd7
Video S/N ratio: Y, C, CVBS and NTC-7 weighting 4.2 MHz
RGB channels (7 MHz filter) lowpass
Group delay variation from
flatness
7 MHz filter
Min. Typ. Max. Unit
70
dB
20
nS
2.3.2 Chroma section
Test conditions: TAMB = 25°C, VCC = 5 V; VCCB = 5 V; RGENERATOR = 75 Ω and
RLOUT = 75 Ω unless otherwise specified.
) Table 7. Chroma section
t(s Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
c VDCIN
du RIN
Pro t(s) CIN
te c VIN
le u DYN
so rod DCCOUT
b P CF1
- O te CF3
) le CSBR
ct(s bso Flatness
rodu - O CCTo
te P ct(s) ROUT
le u GC
so rod CToYdel
OObbsolete P YCadd
DC input level
Input resistance
30
Input capacitance
Max input signal
Dynamic output signal
DC output voltage (COUT)
Without signal
-1 dB bandwidth (flatness)
4
-3 dB bandwidth
Stopband rejection
27 MHz versus 100 kHz
Spread of gain in video bands
VIN = 1 VPP, Band = 15 kHz to
5 MHz for Y and CVBS
Crosstalk isolation of C from Y,
RGB and CVBS channels
VIN = 1 VPP at f = 3.58 MHz,
on Y or CVBS inputs, RLOAD =
150Ω
Output resistance
Gain on C channel
Chroma to luma delay, source
Y/C
VIN = 1 VPP at f = 1 MHz
5.5
VIN = 1 VPP at f = 3.58 MHz
Voltage to be applied at
CVBS_ENC input for Y+C adder
selection
3
50
2
1
2
1.5
4.5
7
- 40
V
kΩ
pF
VPP
VPP
V
MHz
MHz
dB
±0.5 dB
55
dB
5
10
W
6
6.5
dB
20
ns
VCC
VCC
V
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