LA7956
PS No. 3353-4/4
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products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.
products described or contained herein.
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semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or
malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise
to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt
safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not
limited to protective circuits and error prevention circuits for safe design, redundant design, and structural
design.
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intellctual property rights which has resulted from the use of the technical information and products mentioned
above.
Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
for volume production.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
SANYO Semiconductor Co.,Ltd. product that you intend to use.
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Design Notes
An improvement in the DC clamp circuit has improved the sync signal compression attributable to the signal source
impedance, but the response time of the DC clamp is made longer accordingly than that of the LA7952. Make
adjustments by connecting a high resistance (several hundred k
Ω) across input pin and GND (decreasing the resistance
makes the sync signal compression larger).
This catalog provides information as of May, 2008. Specifications and information herein are subject to change
without notice.
10M
35
40
45
50
55
60
65
70
75
CT -- f
Frequency, f -- Hz
Crosstalk,CT
-
-dB
JK795607
57 100k
23
5
7
1M
23
5
7
Pin 4 input, pin 6 output
Pin 6 input, pin 8 output
Pin 8 input, pin 9 output
VCC = 12V
1400
-100
-80
-60
-40
-20
0
20
40
Sync Signal Compression Ratio
Input Series Resistance, R2N -- Ω
Sync
Signal
Compression
Rati
(Ration
of
compression
to
that
at
R
IN
=
0Ω)
JK795609
5
200
400
600
800
100
1200
LA7956
LA7952
4
0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
Input/ Output Characteristic
Input -- Vp-p
Output
-
Vp-p
JK795606
5123
VCC = 12V
Pin 4 input
Frequency
15kHz
3
-10
-8
-6
-4
-2
0
2
4
6
8
10
Frequency Characteristic
Frequency, f -- Hz
Attenuation
-
-dB
JK795608
2
3
5
7
1M
2
3
5
7 10M
2
VCC = 12V
Pin 4 input
Input 1Vp-p