NJM2570A Datasheet, PDF (1/7 Pages) New Japan Radio – 75Ω Driver with Filter and Y/C MIX

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
8
9
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
-1-
Ver.2