NJM2230M NJR, NJM2230M Datasheet - Page 5

• Manufacturer Part Number: NJM2230M
• Description: IC VIDEO SYNCH DETECTOR 8-DMP
• Manufacturer: NJR
• Type: Synchronous Separatorr

Specifications of NJM2230M

• Applications: Video Camera
• Mounting Type: Surface Mount
• Package / Case: 8-DMP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

■ TERMINAL FUNCTION
(Note)
Ver.2009-02-02
PIN NO.
1
2
3
4
5
6
7
8
In some application, it happens that still, search or tracking is large off the point and unordinary SYNC or lack of
SYNC occurs. If it is not desirable, you can do in SYNC condition by using Pin 6 as control input terminal.
Also we recommend sensitivity adjustment with external parts. by it error detection of unordinary SYNC improve.
Lower a time constant of M.M. by changing external resistance value into a small value.
In this case synchronous peak voltage at Pin7 becomes lower and so makes to 2V (V+=5V) by putting resistance
in to V+. (Adjust to 2V by Pin1 external resistance)
Connect resistor and capacitor for M. M. time constant. (Value of R, C is changed by a kind of Pin 2 SYNC Input signal.)
Input synchronous signal (Comp SYNC, H. SYNC or V. SYNC) separated from video signal.
It outputs Pin 2 or Pin 4 signal by Pin 2 signal condition.
Input artificial synchronous signal generated by SSG (Sync. Signal Generator).
GND
Input DC voltage (H or L state) by Pin 2 signal condition.
When outer SW is turned to 1, Pin 2 input signal is forced to flow out from Pin 3.
Connect capacitor for smoothing M. M. (Value depends on Pin 2 input Signal).
Adjust Pin 1 attached volume to the level that Pin 8 voltage becomes 2V (V
If V
V
+
● Pin 2 input signal; normal → Output Pin 2 input signal.
● Pin 2 input signal; abnormal → Output Pin 4 input signal.
● Pin 2 input signal; normal → H state
● Pin 2 input signal; abnormal → L state
: 5 to 10V
+
>5V, then V
7
=2/5V
+
(V)
EXPLANATION
+
=5V) with Pin 2 signal.
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