M52335 Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
Número de pieza
componentes Descripción
Fabricante
M52335 Datasheet PDF : 29 Pages
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MITSUBISHI ICs (TV)
M52335SP
NTSC SYSTEM SINGLE-CHIP COLOR TV SIGNAL PROCESSOR
ELECTRICAL CHARACTERISTICS TEST
METHODS
V51
Measure the voltage at output 51 in the no input state.
VO51
1. Enter SG 1 at 90dBµ.
2. Measure the amplitude at output 51 .
Vin min.
1. Lower the SG 3 level. Represent Vin as an input level at which it
is 3dB lower than the Vo51 measured value.
Vin max.
1. Enter SG 4 at 90dBµ.
2. Define the output level 51A as VA.
3. Raise the SG 4 level. Represent Vin as an input level at which
the output level 51A is 3dB lower than VA.
Vin max. = 20 log
measured value
VA
(dB)
BW
1. Enter SG 10. Adjust f2 so that a 1MHz beat component can
appear at output 51 .
2. Raise the f2 frequency. Measure a frequency which is -3dB
lower than the 1MHz component.
BW = (frequency of -3dB) - 58.75MHz (MHz)
IM
1. Enter SG 11. Apply voltage 5 so that output 51 is as shown in
the figure.
2. Calculate level difference between 920kHz and 3.58MHz at
output 51 .
IM = 20 log
920kHz component
3.58MHz component
(dB)
1.75V
51
OUT
V50H, V50L, µAFT
V50H, V50L and µAFT are shown below.
Pin 50 V50H
∆f
5.5V
3.5V
57.75MHz
V50L
f
58.75MHz 59.25MHz
(5.5-3.5) x 103
Standard µAFT =
∆fkHz
(mV/kHz)
V50D1, V50D2, V50D3
Use no signal, fo-2.5MHz, fo+1MHz and defeat SW to confirm that
output 50 goes to 4.4V.
V50M
1. Enter SG 1. Lower the input level from 80dBµ.
2. Represent V50M as an input level at which voltage of output 50 is
center (4.4V).
V52H
1. Enter SG 11. Apply 2.0V to 6 .
2. Measure voltage 52 .
V52L
1. Enter SG 10. Apply 4.0V to 6 .
2. Measure voltage 52 .
LIM
Decrease the SG 19 level. At test point 3, measure an input level
when a 400Hz component goes down 3dB lower than parameter
S2. AF direct signal voltage VOAF.
AMR
At test point 3, measure a 400Hz component and define it as Vam.
Standard value
VOAF (m Vrms)
AMR = 20 log
(dB)
Vam (mVrms)
S/N
1. Enter SG 2. Measure a rms value of output 51 signal.
2. Standard
S/N = 20 log Vo51 measured value (VP-P) x 103 x 0.7 (dB)
measured value (m Vrms)
ATT
1. Measure a 400Hz component at output 4 .
2. Standard value
ATT
=
20
log
Vo4 max.
measured value
(dB)
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