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PDF NJM2561B Data sheet ( Hoja de datos )
| Número de pieza | NJM2561B | |
| Descripción | LOW VOLTAGE VIDEO AMPLIFIER | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJM2561B (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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NJM2561B
LOW VOLTAGE VIDEO AMPLIFIER WITH LPF
■FEATURES
●Operating Voltage
2.8 to 5.5V
●6th Order LPF
-33dB at 19MHz
●6dB Amp. , 75 Driver
●Output AC-Coupling, DC-Coupling
●Power Save Circuit
●Bipolar Technology
●Package Outline
SOT-23-6-1
■GENERAL DESCRIPTION
The NJM2561B is a Low Voltage Video Amplifier
contained LPF circuit. Internal 75 driver is easy to
connect TV monitor directly. It corresponds to both
AC-coupling and DC-coupling.*
The NJM2561B features low power and small
package, and is suitable for low power design on
downsizing of Car camera and CCTV.
*0.33V is always output from Vout.
■APPLICATION
●Car Camera
●Car Navigation
●CCTV
■APPLICATION CIRCUIT (DC-Coupling)
input
0.1µF
10µF
6
V+
75Ω
5
GND
0.1µF
4
Vin
■EQUIVALENT CIRCUIT BLOCK DIAGRAM
Power
Save
1
Vout
2
Vsag
3
V+
6
Vin 4
CLAMP
LPF
75Ω 75Ω
output 1
output 2
75 Driver
6dB
2 Vout
3 Vsag
Ver.4
5
GND
1
Power Save
http://www.njr.com/
-1-
1 page  
■TEST CIRCUIT
0.1µF
10µF
6
V+
input
75Ω
5
GND
0.1µF
4
Vin
Power
Save
1
Vout
2
Vsag
3
33µF
33µF
75Ω
output
75Ω
NJM2561B
Ver.4 http://www.njr.com/ - 5 -
5 Page 
NJM2561B
< Dual drive at using SAG correction circuit >
Using sag correction circuit at dual drive circuit is below. Dual drives are less load resistance. Thus, the cut-off frequency of
HPF that is composed of the output capacitor and load resistance will be small. Therefore, the sag characteristics deteriorate.
Please size up to the output capacitor (Vout) for not to deteriorate the sag characteristics.
< Dual drive at not using SAG correction circuit >
We recommended two-example dual drive circuit with not use sag correction circuit. Please change the configuration to be
used according to the situation. Please configure to meet the following conditions. Then you can adjust the characteristics of
each configuration.
Cout Cout1 Cout2
Cout1 Cout2
(A) In case of using one output capacitor
(B) In case of using two output capacitors
Ver.4
http://www.njr.com/
- 11 -
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet NJM2561B.PDF ] | |
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