M52340SP datasheet(21/44 Pages) MITSUBISHI

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PAL/NTSC SYSTEM SHINGLE-CHIP COLOR TV SIGNAL PROCESSOR

M52340SP

MITSUBISHI ICs (TV)

1. Input SG3 and measure the rms value of output signal a

pin 52.

2. P/N is defined as follows:

P/N = 20 log

P/N Video S/N

1. Input SS4P to VI IN.

2. Measure output amplitude, Cn1 and Cn2, at pins 41 and

43 respectively.

Decrease the input level of SG18. Measure the input level

when the element of 400Hz at pin 46 is 3dB smaller than

V0AFM (S6:Maximum AF output (6.0M)).

1. Measure the element of 400Hz of output at pin 46.

2. ATT is defined as follows:

ATT = 20 log

µAFTN is defined as follows:

µAFTN=

VONEG Measured Value(VP-P)X10

Measured Value(mVrms)

(dB)

1. Input SG4 and set the frequency f2 to 37.9MHz so that

the beat element of 1MHz is output to pin 52.

2. Then set the applied voltage at pin 4 so that the beat

element of 1MHz at pin 52 may be 100dB

µ.

3. Decrease f2 to the level at which the beat element

becomes 3dB smaller than the element of 1MHz, and

read the value at that level.

BW Video frequency characteristics

1. Input 90dBu SG6.

2. VA is the output level at pin 52. Increase SG6 voltage

until the output at pin 52 becomes 3dB smaller than VA.

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 V3 "Video

detector output".

µAFTN AFT detector sensitivity (NEG)

V1HN

Maximum AFT voltage (NEG)

V1LN

Minimum AFT voltage (NEG)

See the following figure.

V1HN

V1LN

∆ f

5.0V

3.0V

37.9MHz

39.9MHz

(5.0-3.0)X10

3mV

∆ f KHz

(mV/KHz)

1. Adjust the applied voltage at pin 4 so that the lowest

output signal voltage at pin 52 is 2.2V.

IM Intermodulation

2.2V

P52

2. Measure elements of 1.07MHz and 4.43MHz of output at

pin 52.

3. IM is defined as follows:

IM = 20 log

Element of 1.07MHz

Element of 4.43MHz

(dB)

ATT Maximum attenuation

V0AFmax

Measured value

(dB)

LIM Input limiting sensitivity

AMR AMR

1. Vam is the element of 400Hz at pin 46.

2. AMR is defined as follows:

AMR = 20 log

V0AFS(mVrms)

Vam(mVrms)

(dB)

1. Measure the noise (20Hz to 100KHz) of output at pin 46.

2. AF S/N is defined as follows:

AF S/N = 20 log

AF S/N AF S/N

V0AFmax

Measured value

(dB)

Cn1 Standard chroma output 1 (PAL)

Cn2 Standard chroma output 2 (PAL)

ACC1 ACC characteristics 1

1. Input VS4P (eb=570mV:level+6dB) to VI IN.

2. Measure the output amplitude at pin 41.

3. ACC1 is defined as follows:

ACC1 = 20 log

Measured value (VP-P)

Cn1 (VP-P)

(dB)

ACC2 ACC characteristics 2

1. Input VS4P (input level:-20dB) to VI IN.

2. Measure the output amplitude at pin 41.

3. ACC2 is defined as follows:

ACC2 = 20 log

Measured value (VP-P)

Cn1 (VP-P)

(dB)

ELECTRICAL CHARACTERISTICS TEST METHOD

3dB

1MHz

100dB

P52

M52340SP Datasheet(PDF) 21 Page - Mitsubishi Electric Semiconductor

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