M52775 Mitsubishi, M52775 Datasheet - Page 11

• Manufacturer Part Number: M52775
• Description: VIF/ SIF/ VIDEO/ CHROMA/ DEFLECTION FOR NTSC
• Manufacturer: Mitsubishi

ELECTRICAL CHARACTERISTICS TEST METHOD
P/N Video S/N
1. Input SG3 and measure the rms value of output signal at pin 57.
2. P/N is defined as follows:
Vf Video frequency characteristics
1. Input SG4 and set the frequency f2 to 44.75MHz so that the beat
2. Then set the applied voltage at pin 60 so that the beat element of
3. Decrease f2 to the level at which the beat element becomes 3dB
Vin min. Input sensitivity
1. Decrease SG5 level until the video detector output is 3dB
Vin max. Maximum permissible input
1. Input 90dB SG6.
2. V
V58H Maximum AFT voltage, V58L Minimum AFT voltage
See the following figure.
11
5.0V
3.0V
P57
AFTN AFT detector sensitivity
AFTN is defined as follows:
P1
element of 1MHz is output to pin 57.
1MHz at pin 57 may be 100dB .
smaller than the element of 1MHz, and read the value at that
level.
1MHz
smaller then the measured value of Parameter V3 “Video
detector output”.
output at pin 57 becomes 3dB smaller than V
that time is the maximum permissible input.
A
P/N=20log
is the output level at pin 57. Increase SG6 voltage until the
AFTN=
100dB
V1HN
44.75Mz
(5.0-3.0) 10
V
0NEG
f kHz
Measured value (mVrms)
measured value (V
3
mV
f0
(mV/kHz)
f
P-P
) 10
BW
V1LN
A
. The input levell at
46.75MHz
3
0.7
(dB)
3dB
f
VIF, SIF, VIDEO, CHROMA, DEFLECTION FOR NTSC
IM Intermodulation
1. Adjust the applied voltage at pin 60 so that the lowest output
2. Measure elements of 0.92MHz and 3.579545MHz of output at
3. IM is defined as follows:
ATT Maximum attenuation
1. Measure the element of 400Hz of output at pin 51.
2.
LIM Input limiting sensitivity
Decrease the input level of SG18. Measure the input level when the
element of 400Hz at pin 52 is 3dB smaller than V
Maximum AF output (6.0M)).
AMR
1. Vam is the element of 400Hz at pin 52.
2. AMR is defined as follows:
AF S/N
1. Measure the noise (20Hz to 100kHz) of output at pin 52.
2. AF S/N is defined as follows:
GEAu EXT Audio GAIN
Input SG22 at pin 53, and measure the output V
Cn1 Output signal amplitude 1
Cn2 Output signal amplitude 2
1. Input SS from pin 36 IN.
2. Measure output amplitude, Cn1 and Cn2, at pins 18 and 20
signal voltage at pin 57 is 2.2V.
pin 57.
respectively.
ATT=20log
IM=20log
P57
AF S/N=20log
AMR=20log
GAIN=20log
Measured value
Element of 3.579545MHz
Element of 0.92MHz
V
0AFmax
V
Vam (mVrms)
Output signal V
0AF
Measured value
Input signal V
(mVrms)
V
0AFmax
(dB)
MITSUBISHI ICs (TV)
(dB)
P-P
P-P
(dB)
M52775FP
(pin49)
(dB)
P-P
(dB)
at pin 49.
2.2V
0AFM
(S6: