M52957AFP 데이터 시트보기 (PDF) - Renesas Electronics

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M52957AFP

Distance Detection Signal Processing for 3V Supply Voltage

Renesas Electronics 

M52957AFP

Application Example

CHN

2

1.0µF

1

PSDN

PSD PSDF

16

CHF

15

1.0µF

0.068µF

Vcc

3

NC

4

CINT

6

TESTN

I1

STATIONARY

I/V

LIGHT

TRANSFORM

REMOVE

AMP

HOLD

HOLD

I2

STATIONARY

LIGHT

REMOVE

I/V

TRANSFORM

AMP

PULSE WIDTH

TRANSFORM

(DOUBLE INTEGRATION)

RECKON

I1

I1+I2

CLAMP

CIRCUIT

HOLD

BIAS

REFERENCE

VOLTAGE

13 NC

TESTF

CLAMP LEVEL

SWITCHING

SEQUENTIAL CONTROL LOGIC

14

GND1

12

GND2

11

CLALV

5

7 9 10 8

STB RESET INT HOLD SOUT

PVcc

MICROCOMPUTER

IRED

Controls

(1) STB

This terminal enables IC to operate. IC is 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.

This terminal cancel resetting IC at the edge from HIGH to LOW.

IC includes power on reset function. The control from external is also possible.

The reset term in IC takes OR between power on reset and control signal from external.

H

L

Indefiniteness

Reset

Reset canceled

While this terminal is HIGH,dielectric divide pole countermeasures circuit of

integration condenser is active.

Rev.1.0, Sep.19.2003, page 8 of 13

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