M52734 View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M52734

3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (Monitor)

M52734SP

3-CHANNEL VIDEO AMPLIFICATION WITH OSD BLANKING

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

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 Note 19, reduce the SG5

pulse width gradually, monitoring the output. Measure the SG5

pulse width when the output reaches 0V.

Oaj1 OSD adjusting control characteristics (maximum)

∆Oaj1 OSD adjusting control relative

characteristics (maximum)

1. Measuring conditions are as given in Supplementary Table.

2. Measure the amplitude at T.P25 (30 or 35). The measured value

is called VORA (VOGA or VOBA), and is treated as Oaj1.

3. OSD adjusting control relative characteristics ∆Oaj1 are

calculated by the equation below:

Oaj2 OSD adjusting control characteristics (minimum)

∆Oaj2 OSD adjusting control relative

characteristics (minimum)

1. Measuring conditions are as given in Supplementary Table,

except that V36 is set to 0V.

2. Measure the amplitude at T.P25 (30 or 35). The measured value

is called VORB (VOGB or VOBB), and is treated as Oaj2.

3. OSD adjusting control relative characteristics ∆Oaj2 are

calculated by the equation below:

OSDth OSD input threshold voltage

1. Measuring conditions are as given in Supplementary Table.

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

Measure the SG7 level when the output reaches 0V. The

measured value is called OSDth.

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.

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

OTr OSD pulse characteristics1

OTf OSD pulse characteristics2

1. Measuring conditions are as given in Supplementary Table.

2. Measure the time needed for the the output pulse to rise from

10% to 90% (OTr) and to fall from 90% to 10% (OTf) with an

active prove.

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