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參數(shù)資料
| 型號： | STV6434D |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Filtered Video Buffers for STB and DVD Devices |
| 中文描述： | 濾波的視頻機(jī)頂盒和DVD設(shè)備緩沖器 |
| 文件頁數(shù)： | 9/18頁 |
| 文件大?。?/td> | 234K |
| 代理商： | STV6434D |
9/18
STV6434
Electrical Characteristics
2.3.3
Pb/Pr Section
Test conditions: T
AMB
= 25°C, V
CC
= 5 V; V
CCB
= 5 V; R
GENERATOR
= 75
and R
LOUT
= 150
,
unless otherwise specified.
2.3.4
Mute Section
Test conditions: T
AMB
= 25°C, V
CC
= 5 V; V
CCB
= 5 V; R
GENERATOR
= 75
and R
LOUT
= 75
unless otherwise specified.
Note: 1 When the MUTE pin is left open, its voltage is defined by an internal voltage divider performed by a
42 k
resistor to Vcc and 18 k
resistor to GND.
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
DCIN_SYNC
DC Input Level
Sync clamp input (Pr,Pb)
Sync signal on Y input
3.0
V
I
CLAMP_SYN
C
Clamping Current, Sync clamp
Sync clamp input (Pr,Pb)
at V
DCIN
-400 mV
100
μA
C
IN
Input Capacitance
2
pF
V
IN
Max Input Signal
1
V
PP
DYN
Dynamic Output Signal
2
V
PP
DC
PrPbOUT
DC Output Voltage
(Pr and Pb Outputs)
Black Level sync signal on Y2
input
1.5
V
PF1
-1 dB Bandwidth (Flatness)
8
9
MHz
PF3
-3 dB Bandwidth
14
MHz
PSBR
Stopband Rejection
27 MHz versus 100 kHz
- 40
dB
Flatness
Spread of Gain in Video Bands
V
IN
= 1 V
PP
Band = 15 kHz to 10 MHz
±0.5
dB
PCTo
Crosstalk Isolation of Pr or Pb from
Y1, Y2 and CVBS Channels
V
IN
= 1 V
PP
at f = 3.58 MHz,
on Y1 or Y2 or CVBS input,
R
LOAD
= 150
55
dB
R
OUT
Output Resistance
5
10
GP
Gain on Pr and Pb channels
V
IN
= 1 V
PP
at f = 1 MHz
5.5
6
6.5
dB
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
00
MUTE Voltage for Y1/C/CVBS muted
and Y2/Pr/Pb muted
Pin MUTE to GND or logical 0
0
1.1
V
V
01
MUTE Voltage for Y1/C/CVBS active
and Y2/Pr/Pb muted
Pin MUTE opened (not
connected) See
Note 1
.
1.3
1.7
V
V
10
MUTE Voltage for Y1/C/CVBS muted
and Y2/Pr/Pb active
Pin MUTE connected by 22 k
to
VCC or at 3.3V (I
IN
< 140 μA)
1.9
4
V
V
11
MUTE Voltage for Y1/C/CVBS active
and Y2/Pr/Pb active
Pin MUTE to VCC (5V)
4.2
Vcc
V
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