M52732SP 查看數據表（PDF） - MITSUBISHI ELECTRIC

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M52732SP

3-CHANNEL VIDEO AMPLIFICATION

MITSUBISHI ELECTRIC  

MITSUBISHI ICs (Monitor)

M52732SP

3-CHANNEL VIDEO AMPLIFICATION

ELECTRICAL CHARACTERISTICS TEST METHOD

1. About switch numbers (SW Nos.) since those for the signal and

pulse input pins are listed in Attached Table 1, the following

notes omit them. Only SW Nos. for the external power supply will

be indicated in the Notes.

2. since sub contrast voltges V3, V7, and V11, they are also set to

the same value, so that V3 in attached Table 1 represents all.

ICC Circuit current

Conditions shall be as indicated in Attached Table 1. Measure

these conditions using ampere meter A with SW1 set to a.

Vomax Output dynamic range

1. Follow the procedure below to set V15.

Input SG1 to pin 10 (pin 6, 2) and raise V15 slowly. Read the

voltage of V15 when the higher peak of output waveform of T.P20

(T.P24, 28) begins distortion. This voltage is VTR1 (VTG1, VTB1)

Next, reduce V15 slowly. Read the voltage of V15 when the lower

peak of output waveform of T.P20 (T.P24, 28) begins distortion.

This voltage is VTR2 (VTG2, VTB2).

(V)

5.0

0.0

Waveform output at T.P20

(Identical to output at T.P24 and T.P28.)

From the above result, VT (VTR, VTG, VTB) is determined as

follows:

VTR1 (VTG1, VTB1) + VTR2 (VTG2, VTB2)

VTR (VTG, VTB)=

2

Change the procedure according to output pins.

Use VTR1 when measuring T.P20. Similarly, VTG1 for T.P24, VTB1

for T.P28.

2. Set V15 to VTR (VTG, VTB), then slowly raise SG1 amplitude

starting from 700mV. Measure the output amplitude when the

higher and lower peaks of T.P20 (T.P24, T.P28) output waveform

simultaneously begin distortion.

Vimax Maximum input

Under the conditions in Note 2, vary V13 to 6.7V as indicated in

Attached Table 1, then slowly raise amplitude of the input signal

starting from 700mVP-P. Read the amplitude of the input signal

when the output signal begins distortion.

Gv Maximum gain

∆Gv Relative maximum gain

1. Under conditions in attached Table.

2. Input SG1 to pin 10 (pin 6, 2). Read amplitude of the output at

T.P20 (T.P24, 28), which is VOR1 (VOG1, VOB1).

3. The maximum gain G is:

VOR1 (VOG1, VOB1) [VP-P]

GV=20LOG

0.7

[VP-P]

4. The maximum relative gain ∆G is calculated by the equation

below:

∆GV=VOR1/VOG1, VOG1/VOB1, VOB1/VOR1

VCR1 Contrast control characteristics (typical)

∆VCR1 Contrast control relative characteristics (typical)

1. Conditions are identical with those in Attached Table except

setting V13 to 6.0V.

2. Then read amplitude of the output at T.P20 (T.P24, 28), which is

VOR2 (VOG2, VOB2)

3. The contrast control characteristics VCR1 and relative contrast

control characteristics ∆VCR1 are calculated by the equations

below:

VOR2 (VOG2, VOB2) [VP-P]

VCR1=20LOG

0.7

[VP-P]

∆VCR1=VOR2/VOG2, VOG2/VOB2, VOB2/VOR2

VCR2 Contrast control characteristics (minimum)

∆VCR2 Contrast control relative characteristics (minimum)

1. Conditions are identical with those in Attached Table except

setting V13 to 3.0V.

2. Then read amplitude of the output at T.P20 (T.P24, 28), which is

VOR3 (VOG3, VOB3) and also VCR2.

3. The relative contrast control characteristics ∆VCR2 is:

∆VCR2=VOR3/VOG3, VOG3/VOB3, VOB3/VOR3

VSCR1 Sub contrast control characteristics (typical)

∆VSCR1 Sub contrast control relative characteristics (typical)

1. Conditions are identical with those in Attached Table except

setting V3, V7, and V11 to 6.0V.

2. Then read amplitude of the output at T.P20 (T.P24, 28), which is

VOR4 (VOG4, VOB4).

3. The sub contrast control characteristics VSCR1 and relative sub

contrast control characteristics ∆VSCR1 are:

VOR4 (VOG4, VOB4) [VP-P]

VSCR1=20LOG

0.7

[VP-P]

∆VSCR1=VOR4/VOG4, VOG4/VOB4, VOB4/VOR4

4

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