NJM2210
VIDEO NOISE REDUCER
■
GENERAL DESCRIPTION
The
NJM2210
is a video noise reducer IC of which operation is to reduce noise
contained in video color and luminance signal and at the same time to correct
outline of horizontal and vertical image signal.
The
NJM2210
is suit for VCR camera especially.
■
FEATURES
●
Operating Voltage
(+4.75V to +5.25V)
●
It can compose Combtype Filter, with CCD IH delay line by that connect with
●
It can be useful as Switching Noise Reduce Mode and Enhence
●
Mode that are because of to Comb type Filter
●
Package Outline
DIP8, DMP8
●
Bipolar Technology
■
RECOMMENDED OPERATING CONDITION
●
Operating Voltage
4.75 to 5.25V
■
PIN CONFIGURATION
■
PACKAGE OUTLINE
NJM2210M
NJM2210D
NJM2210D
NJM2210M
■
TEST CIRCUIT
Ver.2004-02-17
-1-
NJM2210
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
SYMBOL
V
+
(T
a
=25°C)
RATINGS
8
(SIP8)
500
UNIT
V
mW
mW
°C
°C
P
D
(DMP8) 300
Operating Temperature Range
Storage Temperature Range
T
opr
T
stg
-20 to +75
-40 to +125
■
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Current
Voltage Gain (Pin 8-Pin 2)
SYMBOL
I
CC
G
V11
G
V12
Voltage Gain (Pin 1-Pin 2)
G
V21
G
V22
G
V31
G
V32
Voltage Gain (Pin 8-Pin 6)
G
V33
G
V34
G
V35
G
V36
Voltage Gain (Pin 1-Pin 6)
Bandwidth (Pin 8-Pin 2)
Bandwidth (Pin 1-Pin 2)
Bandwidth (Pin 8-Pin 6)
G
V41
G
V42
f
B1
f
B2
f
B31
f
B32
V
7
=4V
V
7
=0V
V
7
=4V
V
7
=0V
V
7
=4V
V
7
=0V
V
7
=4V Pin 2-1 (Inv. Amp)
V
7
=0V Pin 2-1 (Inv. Amp)
V
7
=4V Pin 2-1 (Inv. Amp)
V
7
=0V Pin 2-1 (Inv. Amp)
V
7
=4V
V
7
=0V
V
7
=4V
V
7
=0V
V
7
=4V
V
7
=0V
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=10mV
P-P
V
IN
=10mV
P-P
V
IN
=200mV
P-P
V
IN
=200mV
P-P
V
IN
=20mV
P-P
V
IN
=20mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
V
IN
=100mV
P-P
TEST CONDITION
(T
a
=25°C, V
+
=5V, F=100kHz)
MIN.
-
-1
-11.5
-
-4.2
-2.0
-2.0
-
-
3.5
-5.0
-8.0
-3.4
10
10
8
8
TYP.
6.9
0
-10
-45
-3.2
-1.0
-1.0
-30
-30
5.0
-3.5
-7.0
-2.4
-
-
-
-
MAX.
10
+1
-8.5
-38
-2.2
0
0
-18
-18
-6.5
-2.0
6.0
-1.4
-
-
-
-
MHz
MHz
MHz
dB
dB
dB
UNIT
mA
dB
Note : Unless specified, all items are tested by test circuit.
-2-
Ver.2004-02-17
NJM2210
■
TERMINAL FUNCTION
1
CCD Input
5
Signal Bypass
2
CCD Output
6
Output
3
V
+
7
Control Input
4
GND
8
Input
Ver.2004-02-17
-3-
NJM2210
■
APPLICATION NOTE
The
NJM2210
is an integrated circuit of composing variable comb type filter which reduces noise mixed at chroma or
luminance signal of VCR camera or others. Time delay element of comb type filter is fit to CCD delay element, not to
glass delay line. The circuit is the most excellent FB with NULL system. Fig.1 is its basic block diagram and Fig.2 is actual
block diagram of
NJM2210.
Fig.3 is one of application examples.
This video noise reducer is composed of
NJM2210,
three capacitances for combination, one capacitance for signal
bypass and CCD delay elements.The
NJM2210
is applicable to both of chroma and luminous signal with each fitted
CCD delay element. The control terminal for switching reduce and enhance operates as enhance (increasing of high
frequency part) with high level input and reduce (decreasing of high frequency part) with low level input. Its threshold level
is about 2.25V at 5V supply voltage. Fig.4 is basic operating characteristics.
Fig.1 Basic Block Diagram
Fig.2 Block Diagram
Fig.3 Application
Fig.4 Basic Operating Characteristic
-4-
Ver.2004-02-17
NJM2210
The comb type filter has special frequency characteristics like Fig.5 and is widely used to separate luminance and color
signal in VCR circuit. The
NJM2210
is automatical video signal noise reducer and signal enhancer.
Fig.6 shows video signal wave form and its frequency component.
Fig.5 Comb Type Filter Frequency
Characteristic
Fig.6 Video Signal Waveform & Frequency Component
Ver.2004-02-17
-5-
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