LA7391AN View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LA7391AN Datasheet PDF : 11 Pages
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LA7391AN
Continued from preceding page.
Parameter
FM modulator modulation
sensitivity
FM modulator linearity
1/2 fH carrier shift
Emphasis gain
Detail enhancer
characteristics
Nonlinear emphasis
characteristics
Main linear emphasis
characteristics
White clipping level
Dark clipping level
[PB Mode Y]
Current drain PB
Dropout compensation
period
DOC loop gain
FM demodulation voltage
FM demodulation sensitivity
Symbol Input Output
Conditions
min typ max Unit
SMOD
T4 T40 Measure amplitude of change in output
frequency when 2.6 V DC or 3.1 V DC is
applied to T4, 2 x (f3.1 – f2.6)
1.6 2.0 2.4 MHz/V
LMOD
T4 T40 Measure output frequency when 2.85 V DC –2 0
2
%
applied to T4,
LMOD
=
f2.85
–
(f3.1 +
SMOD
f2.6)/2
x 100
CS1
T40 Measure amplitude of change in output
6.8 7.8 9.5 kHz
frequency when SW41B is off and SW41A is
switched from on to off
CS2
T40 Measure amplitude of change in output
6.8 7.8 9.5 kHz
frequency when SW41B is on and SW41A is
switched from on to off
GEMPH
T4A T5 VIN = 0.5 Vp-p 10 kHz sine wave
Measure ratio of levels of input and output
amplitude at T5
–0.5 0 0.5 dB
GENH1
T4A T5 VIN = 158 mVp-p 2 MHz sine wave
Measure ratio of levels of T5 and T4,
0.9 1.4 1.9 dB
difference with GEMPH
GENH2
T4A T5 VIN = 50 mVp-p 2 MHz sine wave
Measure ratio of levels of T5 and T4,
2.2 3.2 4.2 dB
difference with GEMPH
GENH3
T4A T5 VIN = 15.8 mVp-p 2 MHz sine wave
Measure ratio of levels of T5 and T4,
4.0 5.0 6.0 dB
difference with GEMPH
GENH4 T4A T5 VIN = 15.8 mVp-p 2 MHz sine wave
1.8 2.8 3.8 dB
Measure output amplitude at T5 in edit mode,
difference with GEMPH
GNLEMP1 T4A T5 VIN = 500 mVp-p 2 MHz
Measure ratio of levels of T5 and T4,
0.5 1.4 2.3 dB
difference with GEMPH
GNLEMP2 T4A T5 VIN = 158 mVp-p 2 MHz
Measure ratio of levels of T5 and T4,
2.6 3.8 5.2 dB
difference with GEMPH
GNLEMP3 T4A T5 VIN = 50 mVp-p 2 MHz
Measure ratio of levels of T5 and T4,
4.9 6.4 7.9 dB
difference with GEMPH
GME1
T4A T5 VIN = 50 mVp-p 200 kHz sine wave
Measure ratio of levels of T5 and T4,
4.9 5.2 5.5 dB
difference with GEMPH
GME2
T4A T5 VIN = 50 mVp-p 2 MHz
Measure ratio of levels of T5 and T4,
13.1 13.6 14.1 dB
difference with GEMPH
LWC
T4A T5 VIN = 500 mVp-p white 100% video signal
Measure white clipping level at T5
186 193 200 %
LDC
T4A T5 VIN = 500 mVp-p white 100% video signal
–60 –55 –50 %
Measure dark clipping level at T5
ICCP
TDOC
GDOC
VDEM4
SDEM
T39A
T4A
T39A
T4A
T39A
T39A
T34A
T12
T3
T3
Incoming current at pins 35 and 28 when
VCC = 5.0 V
T39A: 4 MHz, 300 mVp-p sine wave
T4A: 0.5Vp-p video signal
T34A: time from when input went to 0 until
T34A output returned, SW10 → 1
T39A: 4 MHz, 300 mVp-p sine wave
T4A: 0.5Vp-p video signal
T39A: Input/output response when 5H have
elapsed after input went to 0, SW10 → 3
VIN=300 mVp-p, f = 4 MHz, Output DC
voltage
VIN = 300 mVp-p, f = 2 MHz, VDEM2
VIN = 300 mVp-p, f = 6 MHz, VDEM6
Calculate SDEM = (VDEM6 – VDEM2)/4
125 155 185 mA
0.35 0.5 0.65 ms
–1.0 0 1.0 dB
1.5 2.0 2.5 V
0.36 0.45 0.54 V/MHz
Continued on next page.
No. 3951-3/11
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