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參數(shù)資料
| 型號： | STV6432 |
| 廠商： | 意法半導體 |
| 英文描述： | Audio/Video Output Buffers for STB and DVD Devices |
| 中文描述： | 音頻/視頻的機頂盒和DVD設備輸出緩沖器 |
| 文件頁數(shù)： | 7/15頁 |
| 文件大小： | 184K |
| 代理商： | STV6432 |
7/15
STV6432
ELECTRICAL CHARACTERISTICS
2.5
Video Section
T
AMB
= 25° C, V
CCV
= 5 V, V
CCB
= 5 V, V
CCA
= 9 V
R
GA
= 600
, R
LOUTA
= 10 k
, R
GV
= 75
, R
LOUTV
= 150
, unless otherwise specified.
Table 6: Video Data
Symbol
V
DCIN
I
CLAMP
I
LEAK
C
IN
V
IN
DYN
BW
Parameter
Test Conditions
Bottom Sync Pulse
V
IN
= V
DCIN
-400 mV
V
IN
= V
DCIN
+1 V
Min.
Typ.
2
2
1
2
1.5
3
15
Max.
Unit
V
mA
μA
pF
V
PP
V
PP
MHz
DC Input Level
Clamping Current
Input Leakage Current
Input Capacitance
Maximum Input Signal
Dynamic Output Signal
Bandwidth on Y and CVBS Outputs
Spread of Gain in Video Band
(15 kHz to 5 MHz) of Y and CVBS
Video Crosstalk Output
Crosstalk Isolation between Output
Channels
Video Crosstalk Output
Crosstalk Isolation between Output
Channels when CVBSIN_ENC is
driven
Video Crosstalk Output
Crosstalk Isolation between Output
Channels when CVBSIN_ENC is
driven
Output Resistance
1
10
V
CCV
= 5 V, Gain = 6 dB
V
CCV
= 5 V, Gain = 6 dB
V
IN
= 1 V
PP
, at -3 dB, Gain = 6 dB
8
Flatness
V
IN
= 1 V
PP
±0.5
dB
VCT
O
V
IN
= 1 V
PP
at 3.58 MHz on either
YIN_ENC or CIN_ENC inputs
R
LOAD
= 150
;
Gain = 6dB
V
IN
= 1 V
PP
at 3.58 MHz on
CVBSIN_ENC input; Only one
CVBS output loaded at 150
;
Gain = 6 dB
V
IN
= 1 V
PP
at 3.58 MHz on
CVBSIN_ENC input; All 4 CVBS
outputs loaded at 150
;
Gain = 6 dB
50
dB
VCT
O1
50
dB
VCT
O4
44
dB
R
OUT
5
10
G
V5
5 dB Gain on Y and CVBS Channels
V
IN
= 1 V
PP
Pin 7 to GND or Logic “0”
V
IN
= 1 V
PP
. Pin 7 is open
1
V
IN
= 1 V
PP
; Pin 7 connected to
V
CCV
(5 V) via 22 k
or to 3.3 V
V
IN
= 1 V
PP
Pin 7 to V
CCV
(5 V)
Pin 7 to Ground or Logic “0”
(I
IN
< 160 μA)
Pin 7 is open.
4.5
5
5.5
dB
G
V6
6 dB Gain on Y and CVBS Channels
1. When Pin 7 is left open, its voltage is determined by an internal voltage divider consisting of 42 k
to V
CC
(5 V) and 18 k
to Ground
5.5
6
6.5
dB
G
V7
7 dB Gain on Y and CVBS Channels
6.5
7
7.5
dB
G
V8
8 dB Gain on Y and CVBS Channels
7.5
8
8.5
dB
VH5
5 dB Gain: Max. V
IN
Voltage on Pin 7
1.1
V
VL6
VH6
6 dB Gain: Min. V
IN
Voltage on Pin 7
6 dB Gain: Max. V
IN
Voltage on Pin 7 Pin 7 is open.
1.3
V
V
1.7
VL7
7 dB Gain: Min. V
IN
Voltage on Pin 7
Pin 7 connected to V
CCV
(5 V) via
22 k
or to 3.3 V (I
IN
< 140 μA)
Pin 7 connected to V
CCV
(5 V) via
22 k
or to 3.3 V (I
IN
< 140 μA)
Pin 7 connected to V
CCV
(5 V)
(I
IN
< 350 μA)
Bottom sync pulse
V
IN
= 1 V
PP
at 3.58 MHz
V
IN
= 1 V
PP
at 3.58 MHz
1.9
V
VH7
7 dB Gain: Max. V
IN
Voltage on Pin 7
4.0
V
VL8
8 dB Gain: Min. V
IN
Voltage on Pin 7
4.2
V
DC
OUT
DPHI
DG
LNL
VSN
DC Output Voltage
Differential Phase
Differential Gain
Luminance Non-Linearity
Video S/N Ratio
2
0.6
1
1
0.3
V
5
5
3
Degree
%
%
dB
2. S/N = 20 log (V
OUT
Black to White = 0.7 V
PP
/ V
Noise
(mV
RMS
) weighted CCIR 567).
65
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