m52959fp Mitsumi Electronics, Corp., m52959fp Datasheet - Page 3

• Manufacturer Part Number: m52959fp
• Description: Psd On Chip Distance Detection Signal Processor
• Manufacturer: Mitsumi Electronics, Corp.

CH Quik Charge
Output signal
Controls
Power On Reset
IC control content
1. First,STB terminal set Low,then Power On Reset circuit operate.This Power On Reset circuit resets Built-in logic
2. After Power On Reset circuit stoped,Surround light Hold Capacitor quik charge between the first CONT pulse
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
5, After quik charge,Zone judges at the first CONT pulse edge from High to Low and output the Zone Data to
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.
Input signal
Surround light Hold
Output Latch
Zone Judgment
(Hi Edge)
circuits.
edge from High to Low and second CONT pulse edge from High to Low.
pulse edge from Low to High.
OUT1,OUT2 terminals by 2bit at next CONT pulse edge from Low to High.
SEQUENTIAL TIME CHART EXAMPLE
OUT1
OUT2
CONT
VCC
STB
1.0msec
min
100µsec
1
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
25msec
CH Quik
Charge
MITSUBISHI
2
min
100µsec
Stabilization
Period
1.0msec
100µsec
min
1msec
( 3 / 8 )
Distance Detection
min
100µsec
1.2msec
100µsec
min
1msec
min
100µsec
MITSUBISHI
Total Time
27msec+1.2msec x n
100µsec
( n : Frequency of Radiation)
ICs(AV COMMON)
M52959FP
min
100µsec