MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
DESCRIPTION
M52959FP is a semiconductor integrated circuit built-in PSD(Position Sensitive Device) and distance detection
signal processor for 3V supply voltage.
This device transforms each signal current(I1 and I2) from PSD sensor to the voltage, and outputs it as the 4
Zone data after doing calculation of I1/(I1+I2).
FEATURES
• PSD on chip (Sensor size=0.5mm x 0.7mm)
• Wide operating supply voltage range Vcc=2.0V to 5.5V
• Built-in clamp circuit
PIN CONFIGURATION (TOP VIEW)
VR2
VR1
1
2
3
10
9
8
CHN
GND
CHF
Vcc
STB
APPLICATION
Auto focus control for the CAMERA
Sensor for short distance
etc
OUT2
OUT1
4
5
7
6
RECOMMENDED OPERATING CONDITION
Supply voltage • • • • • • • • • • • • • • • • 2.0 to 5.5V
Rated suooly voltage • • • • • • • • • • • • • • • • 3.0V
CONT
10Pin Clear Plastic Mold Package (10C2F) or
10Pin Infrared Permeation Plastic Mold Package (10B2F)
BLOCK DIAGRAM
CV
Vcc
7
Zone
Judgment
Circuit
10µA
CHN
1.0µF
VR1
10
I1
Surround light
Hold Capacitor
Vcc
Surround light
rejection
HOLD
HOLD
I/V
Transform
Amp
Calculation
I1
I 1+I 2
Zone
>
1 –– 2
Level
2
Buffer
Zone Control
Resistance1
Zone
>
2 –– 3
Level
I2
PSD
(Sensor size
=0.5mm x 0.7mm)
10KΩ
VR
Surround light
rejection
CHF
1.0µF
I/V
Transform
Amp
HOLD
Clamp
Circuit
VR2
Zone
>
3 –– 4
Level
1
Buffer
Zone Control
Resistance2
8
Power On
Reset
Cequence Control Logic
Surround light
Hold Capacitor
Output
Driver
OUT1
10KΩ
VR
GND
9
STB
6
CONT
5
4
3
OUT2
Standby Control
Control Signal Input
parallel Output
MITSUBISHI
(1/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
ABSOLUTE MAXIMUM RATINGS
Parameter
Supply voltage
Power dissipation
Thermal derating
Pin input voltage
Another pin input voltage
(Ta=25˚C ,unless noted)
Ratings
7.0
200
3.3
7.0
- 0.3 to Vcc
+0.3
0.5
- 10 to 60
- 30 to 85
Unit
V
mW
mW/˚C
V
V
mA
˚C
˚C
C=100PF
R=1.5KΩ
Remark
note 1
Ta = 25˚C
Ta
≥
25˚C
Pin3,4,5,6
note 2
NPN open collector
Symbol
Vcc
Pd
K
V
IF
V
I/O
Isout
Topr
Tstg
Vsurge
Output pin inflow current
Operating temperature
Storage temperature
Surge voltage
+
1000V over
_
note 1 : As a principle,do not provide a supply voltage reversely.
note 2 : As a principle,do not provide over supply voltage or under ground voltage.
THERMAL DERATING (MAXIMUM RATING)
200
- 3.3mW/˚C
150
100
50
0
10
20 25 30
40
50
60
70
80 85 90
100
AMBIENT TEMPERATURE Ta (˚C)
MITSUBISHI
(2/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
SEQUENTIAL TIME CHART EXAMPLE
Input signal
VCC
STB
1
2
min
100µsec
min
100µsec
min
100µsec
CONT
min
100µsec
min
100µsec
IC control content
Power On Reset
CH Quik Charge
min
1msec
100µsec
Zone Judgment
(Hi Edge)
min
1msec
100µsec
100µsec
Surround light Hold
Output Latch
Output signal
OUT1
OUT2
1.0msec
CH Quik
Charge
Stabilization Distance Detection
Period
Total Time
25msec 1.0msec
1.2msec
27msec+1.2msec x n
( n : Frequency of Radiation)
Controls
1. First,STB terminal set Low,then Power On Reset circuit operate.This Power On Reset circuit resets Built-in logic
circuits.
2. After Power On Reset circuit stoped,Surround light Hold Capacitor quik charge between the first CONT pulse
edge from High to Low and second CONT pulse edge from High to Low.
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
pulse edge from Low to High.
5, After quik charge,Zone judges at the first CONT pulse edge from High to Low and output the Zone Data to
OUT1,OUT2 terminals by 2bit at next CONT pulse edge from Low to High.
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.
MITSUBISHI
(3/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
ELECTRICAL CHARACTERISTICS
(Ta=25˚C , Vcc=3.0V , dark situation , unless otherwise noted)
Limit
Classfication
Parameter
Symbol
Test condition
Min.
Operating supply
voltage range
Usual consuming current
Consuming
current
While Quick charge
consuming current
While STAND BY
consuming current
CONT "H" input voltage
CONT
terminal
CONT "L" input voltage
CONT "H" input current
CONT "L" input current
STB "H" input voltage
STB
terminal
STB "L" input voltage
STB "H" input current
STB "L" input current
CH Quick charge current
Surround
light Hold
Capacitor
CH stationary charge
current
CH stationary discharge
current
OUT leak current
OUT saturationt voltage
VR output current
Far diatance detection
AF
characteristics
characteristics Near distance detection
characteristics
Clamp level
PSD resistance value
VCC
ICC
ICCQC
ICCS
VCOH
VCOL
ICOH
ICOL
VSTH
VSYL
ISTH
ISTL
ICHQC
ICHC
ICHD
IOUT
VOUT
IVR
ST1
ST2
ICLAM
RPSD
VIH=5.5V
VIL=0V
VCH=0V
VCH=0V
VCH=1.5V
VIN=5.5V
IOUT=500µA
VVR=0V
No Signal
Signal = 100nA
0.25
84
VIH=5.5V
VIL=0V
While CH Quick charge
cunsuming current
2.0
–
–
–
1.1
0
–
-78
VCC
-0.3
0
–
-150
-1200
-30
10
–
–
-13
Typ.
3.0
6.0
10.0
–
–
–
–
-60
–
–
–
-100
-800
-20
20
–
–
-10
Nearest
zone
Farther
zone
Unit
Max.
5.5
8.0
13.0
1.0
7.0
0.3
1.0
-42
7.0
0.3
3.0
-50
-400
-10
30
1.0
0.3
-7
V
mA
mA
µA
V
V
µA
µA
V
V
µA
µA
µA
µA
µA
µA
V
µA
Note
*1
*1
*1
*1
*1
*1
*1
*1
*1
*2
*3
Output
circuit
0.5
140
0.75
196
nA
KΩ
*4
*4
MITSUBISHI
(4/8)
MITSUBISHI
ICs(AV COMMON)
M52959FP
PSD ON CHIP DISTANCE DETECTION SIGNAL PROCESSOR
*1
*2
*3
Set up the logic control terminal, correspond to the parameter.
This measuring have to put DUT box under dark condition.
Regulate IRED driving current so that PSD output will become equivalent to 100nA and irradiate IC with
synchronizing IRED radiation.
Set zone resistance VR1 = VR2 = 2KΩ
IRED
Radiation
control signal
IRED
*4
Reference value
PSD SPECTRAL RESPONSIVITY CHARACTERISTICS
Characteristic at using
Infrared Permeation Plastic Mold Package
100
90
80
70
60
50
40
30
20
10
0
400
500
600
700
800
900
1000
Wave length peak 880nm
WAVE LENGTH (nm)
MITSUBISHI
(5/8)
