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參數(shù)資料
| 型號： | LMH1251 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | YPBPR to RGB Decoder and 2:1 Video Switch |
| 中文描述： | 色差到RGB解碼器和2:1視頻開關 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大小： | 614K |
| 代理商： | LMH1251 |
Video Signal Electrical Characteristics
(Continued)
Unless otherwise noted: T
= 25C, V
= +5.0V, RGB Video
= 0.70, Y Video
= 0.7 V
, P
P
Video
IN
=
±
350 VmV,
C
L
= 8 pF, Video Outputs = 0.7 V
PP
. See (Note 7) for Min and Max parameters and (Note 6) for typicals.
Symbol
Parameter
Conditions
(Note 2)
HD YP
B
P
R
t
r
HD YP
B
P
R
Input:
Video Rise Time
(Note 5)
HD YP
B
P
R
OS
R
HD YP
B
P
R
Input:
Rising Edge Overshoot
(Note 5)
HD YP
B
P
R
t
f
HD YP
B
P
R
:
Video Fall Time
(Note 5)
HD YP
B
P
R
OS
F
HD YP
B
P
R
:
Falling Edge Overshoot
(Note 5)
Video Frequency Domain Response
RGB BW
RGB Input:
Channel Bandwidth (3 dB)
YP
B
P
R
BW
YP
B
P
R
Input (SD & HD):
Channel Bandwidth (3 dB)
V
SEP Ch-Ch
10 MHz
Channel to Channel
V
SEP
Video Amplifier 10 MHz Isolation
RGB Input to YP
B
P
R
Input
Min
Typ
8.4
Max
Units
ns
10% to 90%, AC Input Signal
AC Input Signal
3
%
90% to 10%, AC Input Signal
8.4
ns
AC Input Signal
3
%
Large Signal BW
400
MHz
Large Signal BW
70
MHz
Video Amplifier 10 MHz Isolation
(Note 12)
50
dB
INPUT-INPUT
10 MHz
SNR
(Note 12)
55
dB
Signal to Noise Ratio
AC Input Signal, C
L
= 8 pF
(Note 12)
55
dB
Color Decoding Accuracy
Video
IN
=
±
350 VmV, C
L
= 8 pF, Video Outputs = 0.7 V
PP
. See (Note 7) for Min and Max parameters and (Note 6) for typi-
cals.
Unless otherwise noted: T
A
= 25C, V
CC
= +5.0V, Y Video
IN
= 0.7 V
PP
, P
B
P
R
Symbol
V
COLOR ERROR
Parameter
Conditions
Min
Typ
±
0.3
Max
±
2.5
Units
%
|P
B
P
R
| Amplitude
(Calculated from RGB Outputs)
YP
B
P
R
Video Input,
100% Color Bar (any 3 colors),
(Note 13)
YP
B
P
R
Video Input,
100% Color Bar (any 3 colors),
(Note 13)
θ
COLOR ERROR
P
B
P
R
Phase Angle Calculated
from RGB Outputs)
±
0.2
±
1.5
deg
Sync Signal Electrical Characteristics
Unless otherwise noted: T
= 25C, V
= +5.0V, Y Video
= 0.7 V
, P
P
Video
=
±
350 VmV, C
L
= 8 pF,
Video Outputs = 0.7 V
PP
. See (Note 7) for Min and Max parameters and (Note 6) for typicals.
Symbol
Parameter
V
SYNCL
H & V SYNC Low Input
Pins 1 & 2
V
SYNCH
H & V SYNC High Input
Pins 1 & 2
Conditions
Min
0.5
3.0
Typ
Max
1.5
V
CC
+0.5
Units
V
V
I
O-SYNCH
H & V SYNC Current
Sink/Source Capability
H & V SYNC Rise/Fall Time
H & V SYNC Width Error
Relative to H & V SYNC Input
H & V SYNC Width Error
Relative to Composite SYNCS
on Y
50% of H & V SYNC Input to
Output
5 k
Load
3
mA
t
R/F-SYNC
t
SYNC-WIDTH
15
5
ns
%
H & V SYNC Input
t
Y-SYNC-WIDTH
Composite SYNC on Y Input
5
%
t
SYNC-DELAY
H & V SYNC Input
40
ns
L
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|---|---|
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| LMH1251MTX | YPBPR to RGB Decoder and 2:1 Video Switch |
| LMH6502 | Wideband, Low Power, Linear-in-dB Variable Gain Amplifier |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LMH1251EVAL | 制造商:Texas Instruments 功能描述:Evaluation Board For LMH1251 Analog Video Switch 制造商:OC White Company 功能描述:Evaluation Board For LMH1251 Analog Video Switch |
| LMH1251EVAL/NOPB | 功能描述:視頻 IC 開發(fā)工具 LMH1251 EVAL BOARD RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Boards 類型:YPbPr to RGBHV Converters 工具用于評估:LMH1251 工作電源電壓:5 V |
| LMH1251MT | 功能描述:視頻開關 IC RoHS:否 制造商:Texas Instruments 開關數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| LMH1251MT/NOPB | 功能描述:視頻開關 IC RoHS:否 制造商:Texas Instruments 開關數(shù)量:4 開啟電阻（最大值）:12 Ohms 傳播延遲時間: 開啟時間（最大值）: 關閉時間（最大值）: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WQFN-42 封裝:Reel |
| LMH1251MT-NOPB | 制造商:TI 制造商全稱:Texas Instruments 功能描述:YPBPR Path: 70 MHz, a??3 dB, 700 mVPP Bandwidth |
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