Icv4 Vhinjm2267M-1: Video Operation Amp. (Njm2267M); Block Diagram Of Ic - Sharp CD-BK1600V Service Manual

ICV4 VHiNJM2267M-1: Video operation amp. (NJM2267M)

Terminal Name
Pin No.
1 Clamp input terminal
2 GND
3 Sag correction terminal
4,5 Output terminal
6 Sag correction terminal
7 V+
8 Clamp input terminal
VIN2
VIN1
Input of 1.9 V clamp, 1 Vp-p composite or Y-signal
Ground
Able to obtain an output without any sag by feeding back the sag, generated from output
coupling C, using the external C (see block diagram).
When not using the sag correction terminal, connect directly to the pin 4.
6 dB amplifier output. Able to drive 75? line.
Able to obtain an output without any sag by feeding back the sag, generated from output
coupling C, using the external C (see block diagram).
When not using the sag correction terminal, connect directly to the pin 5.
Power source
Input of 1.9 V clamp, 1 Vp-p composite or Y-signal.
8
6dB
Amp
2.0kΩ
1
6dB
Amp
2.0kΩ
Figure 55 BLOCK DIAGRAM OF IC
Function
V+
7
75Ω
Driver
2.2Ω
Correction terminal
75Ω
Driver
2.2kΩ
Correction terminal
2
GND
– 55 –
CD-BK1600V/1800V/190V
Vout2
5
VOUT2
(6dB)
75Ω
6
VOUT2
V5AG2
Vout1
4 VOUT1
(6dB)
75Ω
3
VOUT1
V5AG1