參數(shù)資料
型號(hào)： M61206FP
廠商： Mitsubishi Electric Corporation
英文描述： NTSC TV SIGNAL PROCESSOR
中文描述： NTSC電視信號(hào)處理器
文件頁(yè)數(shù)： 32/51頁(yè)
文件大?。?/td> 1306K
代理商： M61206FP
NTSC TV SIGNAL PROCESSOR
M6120
6
FP
MITSUBISHI ICs (TV)
MITSUBISHI
ELECTRIC
1. Input 90dBμ SG6.
2. V
A
is the output level at pin 57. Increase amplitude of SG6
until the output at pin 57 becomes 3dB smaller than V
A
. The
input level at that time is the maximum permissible input.
Vin max : Maximum permissible input
Vin min : Input sensitivity
1. Decrease SG5 level until the video detector output is 3dB
smaller than the measured value of Parameter Vo "Video
detector output".
Decrease the input level of SG19. Measure the input level
when the element of 400Hz at pin 57 is 3dB smaller than
VoAF P (Maximum AF output (5.5M)).
LIM : Input limiting sensitivity
Electrical characteristics test method
VIF BLOCK
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:
(dB)
P/N = 20 logVoNoise measured value(mV
p-p
) X 10
3
X 0.7
rms
)
1. Input SG13 to pins 64 and 1.
2. Measure elements of 0.92MHz and 3.58MHz of output at
pin 57.
3. IM is defined as follows:
Element of 0.92MHz
IM : Intermodulation
IM = 20 log
AMR : AM Rejection
1. Vam is the element of 400Hz at pin 53.
2. AMR is defined as follows:
VoAF P(mV
rms
)
Vam(mV
rms
)
AMR = 20 log
(dB)
1. Measure the noise (20Hz to 100KHz) of output at pin 50.
2. AFSN is defined as follows:
VoAF max
Measured value
AFSN : AF S/N
(dB)
AF S/N = 20 log
(mV/KHz)
μAFT =(3.0-1.0) X 10
3
mV
df KHz
μAFT is defined as follows:
μAFT : AFT detector sensitivity
V2H : Maximum AFT voltage
V2L : Minimum AFT voltage
See the following figure.
pin 60
V60H
V60L
3.0V
1.0V
44.75MHz
46.75MHz
f
0
freq
df
1. Input SG4 and set the frequency f
2
to 44.75MHz so that
the beat element of 1MHz is output to pin 57.
2. Then set the applied voltage at pin 63 so that the beat
element of 1MHz at pin 64 may be 100dBμ.
3. Decrease f
2
to the level at which the beat element
becomes 3dB smaller than the element of 1MHz, and read
the value at that level.
100dBμ
Vf : Video frequency characteristics
3dB
1MHz
Vf
pin 57
freq
SIF, QIF BLOCK
1. Input SG5 to pins 64 and 1.
2. Change amplitude of SG5 to the level at which voltage of
pin 62 becomes 2.5V, and read the value at that level.
DLPH : Maximum RF AGC delay point
DLPL : Minimum RF AGC delay point
1. Set FM Radio and SPLIT control data to 'ON'.
2. Input SG22 (vi=85dBμ) to pins 64 and 1.
3. Measure the noise (20Hz to 100kHz) of output at pin 53.
4. FM-SN is defined as follows:
FM-VoAF
Measured value
FM-SM : FM mode S/N
(dB)
FM-SN = 20 log
1. Set FM Radio and SPLIT control data to 'ON'.
2. Input SG23 to pins 64 and 1.
3. Measure the DC voltage of output at pin 57.
FM-OUT : FM mode video detector output
32
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