M52957FP Datasheet | Mitsubishi Electric

DESCRIPTION M52957FP 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). PSDN CHN VCC (TESTN) NC PIN CONFIGURATION (TOP VIEW) 1 2 3 16 PSDF 15 CHF 14 GND1 4 5 6 7 8 (TESTF) NC FEATURES STB CINT RESET SOUT 12 GND2 11 CLALV 10 HOLD 9 INT - - - - Wide supply voltage range Vcc=2.2 to 5.5V Includes clamp level switching circuit (Switch is 16 kinds by outside control) Includes standby function Includes power on RESET function Outline 16P2E-A APPLICATION Auto focus control for the CAMERA Sensor for short distance etc NC:NO CONNECTION REMENDED OPERATING CONDITION Supply voltage range 2.2 to 5.5V Rated supply voltage 3.0V BLOCK DIAGRAM Note: pin4,13 is connected only engineering sample VCC 3 TESTN CHN 2 I1 PSDN 1 STATIONARY LIGHT REMOVE I/V TRANSFORM AMP NC 4 CINT 6 PULSE WIDTH TRANSFORM (DOUBLE INTEGRATION) BIAS RECKON I1 I1+I2 REFERENCE VOLTAGE HOLD HOLD I2 I/V PSDF 16 STATIONARY LIGHT REMOVE TRANSFORM AMP CLAMP LEVEL SWITCHING CLANP CIRCUIT 13 NC HOLD TESTF CHF 15 SEQUENTIAL CONTROL LOGIC 14 GND1 12 GND2 11 CLALV 5 STB 7 RESET 9 INT 10...