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Número de pieza | NJM2570A | |
Descripción | Video Amplifier / SSOP16 | |
Fabricantes | JRC | |
Logotipo | ||
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NJM2570A
75Ω Driver with Filter and Y/C MIX
s GENERAL DESCRIPTION
s PACKAGE OUTLINE
NJM2570A is a video amplifier included LPF in Y and C system.
Adjustable LPF characteristic with external resistor and output
with 75ohm driver optimize the TV monitor system.
Also, it can discriminated the aspect ratio of TV by internal DC
interface for S terminal.
NJM2570A includes power save circuit to suitable for portable
video application.
NJM2570AV
s FEATURES
q Operating Voltage 4.5 to 5.5V
q Input Y and C
0.5Vpp
q Internal LPF
0dBtyp. at 4MHz (at IREF=33kΩ)
-35dBtyp. at 10MHz (at IREF=33kΩ)
0dBtyp. at 6MHz (at IREF=22kΩ)
-40dBtyp. at 16MHz (at IREF=22kΩ)
q Internal DC Interface for aspect ratio discrimination
q Bipolar technology
q Package Outline SSOP16
s BLOCK DIAGLAM
15 9
s PIN CONFIGURATION
1 16
89
1. Cin
2. GND
3. SDCin
4. SDCout
5. Cout
6. Vout
7. Vsag
8. GND2
9. V+2
10. Ysag
11. Yout
12. VREF
13. POWERSAVE
14. Yin
15. V+1
16. IREF
Yin 14
CLAMP
6dB
LPF
6dB 11 Yout
10 Ysag
6dB 6 Vout
7 Vsag
Cin 1
SDCin 3
HPF
BIAS
LPF
6dB
12dB
5 Cout
4 SDCout
voltage reference
current referrence
13 12 16
com parator
2
8
Ver.2
-1-
1 page www.DataSheet4U.com
NJM2570A
s ELECTRICAK CHARACTERISTICS (V+1=V+2=5.0V,Powersave=1.8V, IREF=22kΩ,SDCin=open,
SDCout=100kΩ, RL=150Ω, Input=ACgnd(75Ω to GND),Ta=25°C at non-designation)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
*1 2nd. Distortion 1
(Y Signal)
*1 2nd. Distortion 2
(C Signal)
*1 2nd. Distortion 3
(V Signal)
2nd. Distortion 4(V Signal)
SDC Voltage Gain
SDC Maxim Output Voltage
Threshold Voltage
for SDC Output Impedance
Hy Yin=1MHz,0.5Vpp, Sine Signal
Hc Cin=4.43MHz,0.15Vpp, Sine Signal
Hv1
Hv2
Gv
SDC
Vom
SDC
VthR
SDC
Yin=1MHz,0.5Vpp, Sine Signal
Yin=DC,Cin=4.43MHz,
V+1=V+2=4.7V,Vout=1.275Vpp(Cout=
0.91Vpp in Vout)
SDCin=1.0V,RL=100kΩ
RL=100kΩ, V+1=V+2=4.5V
Change Guarantee
for SDC High Impedance
*2
- -50 -40 dB
- -50 -40 dB
- -47 -37 dB
- -50 -40 dB
5.5 6.0 6.5 dB
3.6 -
-V
- - 0.3 V
SDC Output Impedance
RSDC SDCout at High Impedance
140 220 275 kΩ
*1 Limits are guaranteed by statistical analysis.
*2 Reference to the TEST CIRCUIT.
s CONTROL TERMINAL
PARAMETER
Power Save
CONTROL
H
L
OPEN
Power Save: OFF
Power Save: ON
Power Save: ON
NOTES
Ver.2
-5-
5 Page |
Páginas | Total 7 Páginas | |
PDF Descargar | [ Datasheet NJM2570A.PDF ] |
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