M52959FP View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

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M52959FP

PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR

MITSUBISHI ELECTRIC  

MITSUBISHI ICs(AV COMMON)

M52959FP

PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR

SEQUENTIAL TIME CHART EXAMPLE

Input signal

VCC

STB

CONT

1

2

min

100µsec

min

100µsec

min

100µsec

IC control content

min

100µsec

min

100µsec

Power On Reset

CH Quik Charge

Surround light Hold

Zone Judgment

(Hi Edge)

min

1msec

100µsec

min

1msec

100µsec

100µsec

Output Latch

Output signal

OUT1

OUT2

Controls

1.0msec

CH Quik Stabilization Distance Detection

Charge Period

25msec 1.0msec 1.2msec

Total Time

27msec+1.2msec x n

( n : Frequency of Radiation)

1. First,STB terminal set Low,then Power On Reset circuit operate.This Power On Reset circuit resets Built-in logic

circuits.

2. After Power On Reset circuit stoped,Surround light Hold Capacitor quik charge between the first CONT pulse

edge from High to Low and second CONT pulse edge from High to Low.

3. After quik charge,set Stabilization Period for about 1ms.

4. After quik charge,Surround light hold between the first CONT pulse edge from Low to High and second CONT

pulse edge from Low to High.

5, After quik charge,Zone judges at the first CONT pulse edge from High to Low and output the Zone Data to

OUT1,OUT2 terminals by 2bit at next CONT pulse edge from Low to High.

6. It can repeat distance detection by continuing control of 4 and 5.

7. It needs the signal synchronized with timing of Surround light hold as radiation control signal of IRED.

MITSUBISHI

(3/8)

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