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PDF NJM2277 Data sheet ( Hoja de datos )
| Número de pieza | NJM2277 | |
| Descripción | Video Switch / SDIP28 / SDMP30 | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2277 (archivo pdf) en la parte inferior de esta página. Total 15 Páginas | ||
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VIDEO SWITCH MATRIX
NJM2277
sGENERAL DESCRIPTION
s PACKAGE OUTLINE
The NJM2277 is a Video switch for Set Top Box, and TV.
The NJM2277 includes 2 CVBS input, 2-RGB input switches.
Also it allow the inputs to be routed in 3 CVBS output, 1-RGB output.
The NJM2277 includes 5th-order Low pass Filter suppress
the noise interference to video signal.
The NJM2277 enable to control the Output Impedance for RGB outputs.
NJM2277L
NJM2277M
sFEATURES
q Operating Voltage
±5V
q 2- RGB Switches.
q 75Ω Cable Driver on all channels.
q 41dB Stop Band Rejection (@27MHz)
q Bipolar Technology
q Package Outline
SDIP28, SDMP30
sFUNCTION BLOCK DIAGRAM
q 2-Input,3-output CVBS Switches.
q Quad 5th order Butter worth Low Pass Filter.
q High Impedance output for RGB signal.
+Vcc
GND
-VEE
Comp_Sin
Comp_Vin
FB_Sin
FB_Vin
R_Sin
R_Vin
G_Sin
G_Vin
B_Sin
B_Vin
A/B Mux
High Z Cont
Filter
Switch
Control
Switch
Control
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
2 to 1
Switch
Filter
Filter
Filter
6dB 75Ω
6dB 75Ω
6dB 75Ω
6dB 75Ω
6dB 75Ω
6dB 75Ω
6dB 75Ω
S_Comp Out1
S_Comp Out2
TV_Comp Out
FB_Out
Red Out
Green Out
Blue Out
-1-
1 page  
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Symbol
Pin No.
I/O Type
SDIP28 SDMP30
Equivalent Circuit
VEE1 5 5 _
_
NJM2277
Function
VEE
R_Vin 6 6
I
400Ω
100kΩ
VCC
RGB Signal Input
CVBS/Y/C Signal Input
VEE
GND
GND1
7
7
_
_
0
B_Sin 8 8
I
400Ω
100kΩ
VCC
RGB Signal Input
CVBS/Y/C Signal Input
VEE
GND
-5-
5 Page 
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NJM2277
sABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
V+
Power Dissipation
Operating Temperature Range
Storage Temperature Range
PD
Topr
Tstg
RATING
15
(SDIP28) 700
(SDMP30) 700
-40 to +85
-40 to +125
sELECTRICAL CHARACTERISTICS ( Ta=25°C, Vcc=5.0V,VEE=-5V)
UNIT
V
mW
°C
°C
PARAMETER
Operating Voltage
Supply Current
SYMBOL
TEST CONDITION
V+
Icc No Signal,No Loard
MIN. TYP. MAX. UNIT
±4.5 ±5.0 ±5.5 V
36 46 56 mA
qVideo system( Ta=25°C, Vcc=5.0V,VEE=-5V, RL=150Ω unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITION
MIN TYP MAX UNIT
Gain
Frequency Response
Characteristics
Stop Band Rejection
GV
FBW
Fsb
Vin=1.0Vp-p 100KHz
S_Comp Out1/2,TV_Comp Out
Red/Green/Blue Out
Vin=1.0Vp-p 5MHz /100KHz
All filtered channel
f=100KHz/27MHz ,1Vp-p
All filtered channel
6.0 6.4 6.8 dB
-1.0 0 1.0-
-35 -41 -
dB
dB
-3dB Bandwidth
Fc All filtered channel
- 7.1 - MHz
RGB Gain matching level
Gm
Gain Matching Between
Red/Green/Blue Out
-5 0 5 %
Total Harmonic Distortion
THD f=1KHz, 1Vp-p input
- 0.1 -
%
Cross talk1
Cross Talk2
Differential Gain
Differential Phase
CT1
Vin=4.43MHz/1.0Vp-p
One input to any other output
CT2
f=4.43MHz/1Vp-p
Mux input to output
DG
Vin=1Vp-p,10step Stairs-signal
except FBout
DP
Vin=1Vp-p,10step Stairs-signal
except FBout
- -60 -
dB
- -60 -
dB
- 0.4 -
%
- 0.4 - deg
Input Impedance
Rin All Channel
- 50 - KΩ
Output Impedance
Output Impedance
Equivalent Output
Capacitance
Group Delay
Ro1
High Z Cont=”0”
Red/Green/Blue Output
Ro2
High Z Cont=”1”
Red/Green/Blue Output ,
Co RGB output, High Z Cont=”0”
Tpd
Vin=1Vp-p, 100Khz
All filtered Channel
10 20 - KΩ
- 45 - mΩ
- 3 - pF
- 70 -
nS
- 11 -
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet NJM2277.PDF ] | |
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