M52957AFP HITACHI, M52957AFP Datasheet
![no-image](/images/manufacturer_photos/0/3/301/hitachi_sml.jpg)
M52957AFP
Related parts for M52957AFP
M52957AFP Summary of contents
Page 1
... M52957AFP Distance Detection Signal Processing for 3V Supply Voltage Description M52957AFP is a semiconductor integrated circuit containing distance detection signal processing circuit for 3V supply voltage. This device transforms each optical inflow current I1 and I2 from PSD SENSOR into the voltage, and integrates that output after doing calculation corresponds to I1/(I1+I2), and outputs it as the time data(pulse term). ...
Page 2
... M52957AFP Pin Configuration PSDN CHN Vcc (TESTN) NC STB CINT RESET SOUT Note: pin4,13 is connected only engineering sample Block Diagram Vcc 3 2 CHN I1 STATIONARY 1 PSDN LIGHT REMOVE HOLD HOLD I2 STATIONARY PSDF 16 LIGHT REMOVE CHF GND1 GND2 Note: pin4,13 is connected only engineering sample Rev ...
Page 3
... M52957AFP Absolute Maximum Ratings Parameter Supply voltage Power dissipation Thermal derating Pin supply voltage Another pin supply voltage Output pin inflow current Operating temperature Storage temperature Notes : principle, do not provide a supply voltage reversely principle, do not provide the terminals with the voltage over supply voltage or under ground voltage. ...
Page 4
... M52957AFP Electrical characteristics Classification Parameter Operating supply voltage range Consuming Usual consuming current current While Rapid charge consuming current 1 While Rapid charge consuming current 2 While STAND BY consuming current HOLD pin HOLD "H" input voltage HOLD "L" input current HOLD "H" input current HOLD " ...
Page 5
... M52957AFP Electrical characteristics (cont.) Classification Parameter Double CINT rapid charge integration current CINT reference voltage The first integration current The second integration current The first integration current stability percentage The second integration current stability percentage The first and second integration current ratio ...
Page 6
... M52957AFP *1 : Set up the logic control terminal, correspond to the parameter Change ratio between the first integration current and the second integration current at a voltage of CINT that is {CINT reference voltage(VCINT)-0.1V} and 1V. The first integration current (CINT=1V) 1 The first integration current (CINT=VCINT-0.1V) ...
Page 7
... M52957AFP Description of Pin Pin name HOLD INT CLALV RESET STB SOUT Rev.1.0, Sep.19.2003, page Limits Parameter Circuit diagram Min. Typ. Max. "H"input 1.1 voltage "L"input 0 voltage "H"input current "L"input -100 current "H"input VCC voltage -0.3 "L"input ...
Page 8
... M52957AFP Application Example Vcc 3 CHN 2 1.0µF STATIONARY LIGHT 1 REMOVE PSDN HOLD HOLD PSD PSDF STATIONARY 16 LIGHT REMOVE CHF 15 1.0µF 14 GND1 Controls (1) STB This terminal enables IC to operate Standby at HIGH in this terminal. IC can operate at LOW in this terminal. (2) RESET This terminal resets the whole IC including a logic. This terminal resets IC at HIGH. ...
Page 9
... M52957AFP (3)CLALV This terminal sets up clamp level. As including D/A of 4bit, 16way clamp level setting is possible by inputting clock after reset is canceled(include none clamp). Set up current value of each bit is on the right table. The number of input clock and set up clamp level is as follows. Clock value ...
Page 10
... M52957AFP a. CINT rapid charge After reset is canceled, the capacity of CINT is charged rapidly until INT terminal first falls rapid charge After reset is canceled, the capacity charged rapidly until INT terminal first rises and falls. c. Stationary light hold After reset is canceled, holds the stationary light while HOLD terminal is HIGH. ...
Page 11
... M52957AFP Sequential Time Chart Example Rev.1.0, Sep.19.2003, page ...
Page 12
... H S This type uses O O CLALV,STB,RESET,INT,HOLD,SOUT terminal I/F terminal to the microcomputer This is the typical type at M52957AFP This type does not connect CLALV,STB,RESET terminals the microcomputer When above mentioned terminals are not connected to the L U microcomputer without changing mask,connect each ...
Page 13
... M52957AFP Package Dimensions Rev.1.0, Sep.19.2003, page ...
Page 14
Sales Strategic Planning Div. Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble ...