M61006FP Datasheet, PDF (1/16 Pages) Hitachi Semiconductor – DISTANCE DETECTION SIGNAL PROCESSING FOR 3 V SUPPLY VOLTAGE

M61006FP
DISTANCE DETECTION SIGNAL PROCESSING
FOR 3 V SUPPLY VOLTAGE
REJ03F0039-0100Z
Rev.1.0
Sep.16.2003
Description
M61006FP is a semiconductor integrated circuit including distance detection signal processing circuit for 3 V supply
voltage. This device transforms each optical inflow current I1 and I2 from PSD SENSOR into the voltage, and
integrates the output after doing calculation corresponds to I1 / (I1+I2), and outputs it as the voltage data.
Features
• Wide supply voltage range: Vcc = 2.2 to 5.5 V
• Including clamp level switching circuit
(It is possible to set a clamp level to 15 points with outside control.)
• Including infinity discrimination function
(clamp on detection function)
• Including POWER ON RESET function
• Including simple temperature detection function
(It is possible to correct temperature with transmitting this output to the microcomputer. )
Application
• Auto focus control for a camera, short distance sensor, etc.
Recommended Operating Condition
• Supply voltage range …… 2.2 V to 5.5 V
• Rated supply voltage …… 3.0 V
Block Diagram
Vcc1 Vcc2
CV
NC
5
12
16
AFOUT
1
0.032µF
CHN
Capacitance for
stationary lihgt
hold _{1 µF}
15
TESTN
I1
STATIONARY
14 ^LIGHT
REMOVE
I/V
TRANSFORM
AMP
PSDN
DIELECTRIC DIVIDEPOLE
MEASURES CIRCUIT
TEMPERATURE
DETECTION
CIRCUIT
OUTPUT
CIRCUIT
RECKON
I1
HOLD
HOLD
PSD
I2
PSDF
11
STATIONARY
LIGHT
REMOVE
I/V
TRANSFORM
AMP
INFINITY
JUDGE
CIRCUIT
CLAMP
CIRCUIT
CHF
10
1 µF
Capacitance for
stationary lihgt
hold
2
GND1
HOLD
POWER
ON
RESET
3
GND2
SEQUENTIAL CONTROL LOGIC
6
8
CONT CLALV
Input control signal Input control signal
I1 + I2
TESTF
INFINITY JUDGE
OUTPUT CIRCUIT
7
CMOUT
9 NC
Note: Pin9, 16 is avail only for engineering sample.
Rev.1.0, Sep.16.2003, page 1 of 15