M52749FP 데이터 시트보기 (PDF) - Renesas Electronics

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M52749FP

BUS Controlled 3ch Video Pre-amp for CRT Display Monitor

Renesas Electronics 

M52749FP

Electrical Characteristics Test Method

ICC1 Circuit Current1

Measuring conditions are as listed in supplementary Table.

Measured with a current meter at test point IA.

ICC2 Circuit Current2

Measuring conditions are as listed in supplementary Table.

Measured with a current meter at test point IB.

Vomax Output Dynamic Range

Decrease V34 gradually, and measure the voltage when the bottom of waveform output is distorted. The voltage is

called VOL.

Next, increase V34 gradually, and measure the voltage when the top of waveform output is distorted. The voltage is

called VOH.

Voltage Vomax is calculated by the equation below:

Vomax = VOH − VOL

(V)

VOH

5.0

VOL

0.0

Waveform output

Vimax Maximum Input

Increase the input signal (SG2) amplitude gradually, starting from 700 mVP-P. Measure the amplitude of the input

signal when the output signal starts becoming distorted.

GV Maximum Gain

Input SG1, and read the amplitude output at OUT (33, 38, 41). The amplitude is called VOUT (33, 38, 41).

Maximum gain GV is calculated by the equation below:

VOUT

GV = 20log 0.7 (dB)

∆GV Relative Maximum Gain

Relative maximum gain ∆GV is calculated by the equation below:

∆GV = VOUT (33) / VOUT (38),

VOUT (38) / VOUT (41),

VOUT (41) / VOUT (33)

REJ03F0194-0201 Rev.2.01 Mar 31, 2008

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