M52733SP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M52733SP

3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (Monitor)

M52733SP

3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING

3. Supposing that the measured value is treated as amplitude VOR1

(VOG1 or VOB1) when SG1 is input, as VOR8 (VOG8 or VOB8) when

SG2 is input, or as VOR9 (VOG9 or VOB9) when SG3 is input,

frequency characteristics FC1 and FC1' are calculated as follows:

VOR8 (VOG8, VOB8)

FC1=20LOG

VOR1 (VOG1, VOB1)

[VP-P]

[VP-P]

FC1'=20LOG VOR9 (VOG9, VOB9)

VOR1 (VOG1, VOB1)

[VP-P]

[VP-P]

4. Frequency relative band widths ∆FC1 and ∆FC1' are equal to the

difference in FC1 and FC1', respectively, between the channels.

Tr Pulse characteristics1

Tf Pulse characteristics2

1. Measuring conditions are as given in Supplementary Table.

2. Measure the time needed for the input pulse to rise from 10% to

90% (Tr1) and to fall from 90% to 10% (Tf1) with an active prove.

3. Measure the time needed for the output pulse to rise from 10%

to 90% (Tr2) and to fall from 90% to 10% (Tf2) with an active

prove.

4. Pulse characteristics Tr and Tf are calculated by the equation

below:

Tr (nsec)= (Tr2)2-(Tr1)2

Tf (nsec)= (Tf2)2-(Tf1)2

FC2 Frequency characteristics2 (f=130MHz; maximum)

∆FC2' Frequency relative characteristics2

(f=130MHz; maximum)

Measuring conditions and procedure are the same as described in

FC1, ∆FC1, FC1', ∆FC1', except that CONTRAST (V14) is turned

down to 1.5V.

C.T.1 Crosstalk1 (f=50MHz)

C.T.1' Crosstalk1 (f=130MHz)

1. Measuring conditions are as given in Supplementary Table.

2. Input SG2 (or SG3) to pin 11 (R-ch) only, and then measure the

waveform amplitude output at T.P21 (25 or 29). The measured

value is called VOR, VOG and or VOB respectively.

3. Crosstalk C.T. 1 is calculated by the equation below:

VOG or VOB

C.T.1 =20LOG

(C.T.1')

VOR

[VP-P]

[dB]

[VP-P]

C.T.2 Crosstalk2 (f=50MHz)

C.T.2' Crosstalk2 (f=130MHz)

1. Change the input pin from pin 11 (R-ch) to pin 7 (G-ch), and

measure the output in the same way as in C.T.1, C.T.1'.

2. Crosstalk C.T. 2 is calculated by the equation below:

VOR or VOB

C.T.2 =20LOG

(C.T.2')

VOG

[VP-P]

[dB]

[VP-P]

C.T.3 Crosstalk3 (f=50MHz)

C.T.3' Crosstalk3 (f=130MHz)

1. Change the input pin from pin 11 (R-ch) to pin 3 (B-ch), and

measure the output in the same way as in C.T.1, C.T.1'.

2. Crosstalk C.T. 3 is calculated by the equation below:

VOR or VOG

C.T.3 =20LOG

(C.T.3')

VOB

[VP-P]

[dB]

[VP-P]

100%

90%

10%

0%

Tr

Tf

V14th Clamp pulse threshold voltage

1. Measuring conditions are as given in Supplementary Table.

2. Turn down the SG5 input level gradually, monitoring the output

(about 2.0 VDC). Measure the SG5 input level when the output

reaches 0V.

W14 Clamp pulse minimum width

Under the same conditions as given in V14th, reduce the SG5 pulse

width gradually, monitoring the output. Measure the SG5 pulse

width when the output reaches 0V.

PDCH Pedestal voltage temperatere characteristics1

PDCL Pedestal voltage temperatere characteristics2

1. Measuring conditions are as given in Supplementary Table.

2. Measure the pedestal voltage at room temperature.

The measured value is called PDC1.

3. Measure the pedestal voltage at temperatures of -20°C and

85°C. The measured value is called, respectively, PDC2 and

PDC3.

4. PDCH=PDC1 - PDC2

PDCL=PDC1 - PDC3

V1th BLK input threshold voltage

1. Measuring conditions are as given in Supplementary Table.

2. Make sure that signals are not being output synchronously with

SG7 (blanking period).

3. Reduce the SG7 input level gradually, monitoring output.

Measure the SG7 level when the blanking period disappears.

The measured value is called V1th.

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