NJM2570A
75Ω Driver with Filter and Y/C MIX
Ω
s
GENERAL DESCRIPTION
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.
s
PACKAGE OUTLINE
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
V+1
V+2
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
15
9
Yin
14
CLAMP
6dB
LPF
6dB
6dB
11
Yout
10
Ysag
6dB
6
Vout
7
12dB
Vsag
Cin
1
HPF
BIAS
LPF
12dB
5
Cout
SDCin
3
6dB
4
SDCout
voltage reference
current referrence
comparator
13
PowerSave
12
VREF
16
IREF
2
GND1
8
GND2
-1-
Ver.2
NJRC [ NEW JAPAN RADIO ]
