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LA7138M
No.A0220-5/16
Design Guarantee Items
at Ta = 25
°
C
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Except for Y/C-MIX (VCCA = 9.0 to 13.0V, VCCB = 7.5 to 8.5V)
Channel crosstalk
CT
The signal which becomes 1Vp-p at f = 4MHz and with the output in
C connection is entered in other channels. Measure the magnitude
of monitor channel output pins at 4MHz and specify the ratings as a
ratio relative to the magnitude of output pin of other channels at
4MHz.
Enter the Y signal with 100% white and apply 3.3V to pin 11.
Measure S/N of the output signal.
* Refer to Note 1.
Enter the 1Vp-p standard stair step signal (color) to obtain pin 11 =
OPEN. Measure the differential gain of the output signal, with the
output pin part shown in the measuring circuit diagram inserted.
Enter the 1Vp-p standard stair step signal (color) to obtain pin 11 =
OPEN. Measure the differential phase of the output signal, with the
output pin part shown in the measuring circuit diagram inserted.
-65
-60
dB
Video S/N ratio
SN
-80
-78
dB
Differential gain
DG
0.5
2
%
Differential phase
DP
-1
0
1
dB
For Y/C-MIX (VCCB = 7.5 to 8.5V)
Channel crosstalk
CT
The signal which becomes 1Vp-p at f = 4MHz and with the output in
C connection is entered in other channels. Measure the magnitude
of monitor channel output pins at 4MHz and specify the ratings as a
ratio relative to the magnitude of output pin of other channels at
4MHz.
Enter the Y signal with 100% white and add pin 11 = 3.3V. Measure
S/N of the output signal.
* Refer to Note 1.
Enter the 761mVp-p standard stair step signal (color) to obtain pin
11 = 3.3V. Measure the differential gain of the output signal, with the
output pin part shown in the measuring circuit diagram inserted.
Enter the 761mVp-p standard stair step signal (color) to obtain pin
11 = 3.3V. Measure the differential phase of the output signal, with
the output pin part shown in the measuring circuit diagram inserted.
-65
-60
dB
Video S/N ratio
SN
-74
-72
dB
Differential gain
DG
4
5.5
%
Differential phase
DP
-1
0.5
1.5
dB
* Note 1) Since the noise in IC is dependent on the stability of regulator, it is recommended to connect a 470
μ
F capacitor when the S/N ratio of –80dB is to be
secured for controls other than Y/C-MIX. To secure the S/N ratio of -74dB for Y/C-MIX, set the supply voltage to 8V (VCCB) and apply 8V also to this
pin. (See the test circuit B.)
Package Dimensions
unit : mm
3112B
1
12
13
24
12.5
0
7
5
0.15
1.0
0.35
(0.75)
1
0
(
SANYO : MFP24S(300mil)