M52957FP [MITSUBISHI]
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE; 距离检测信号处理3V供电
| 型号： | M52957FP |
| 厂家： | 
Mitsubishi Group |
| 描述： | DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE |
| 文件： | 总9页 (文件大小：52K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
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).
1
2
3
4
16
15
14
13
PSDN
CHN
VCC
PSDF
CHF
GND1
(TESTF)
NC
(TESTN)
NC
5
6
7
8
12 GND2
STB
CINT
FEATURES
11
10
9
CLALV
HOLD
• 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
RESET
SOUT
INT
• Includes power on RESET function
Outline 16P2E-A
APPLICATION
Auto focus control for the CAMERA
Sensor for short distance
etc
NC:NO CONNECTION
RECOMMENDED 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
NC
4
CINT
6
VCC
3
TESTN
PULSE WIDTH
TRANSFORM
CHN
2
1
I1
(DOUBLE INTEGRATION)
I/V
TRANSFORM
AMP
BIAS
STATIONARY
LIGHT
REMOVE
PSDN
RECKON
I1
HOLD
HOLD
REFERENCE
VOLTAGE
I1+I2
I2
I/V
TRANSFORM
AMP
STATIONARY
LIGHT
REMOVE
CLANP
PSDF
CHF
13
NC
16
15
CIRCUIT
HOLD
TESTF
CLAMP LEVEL
SWITCHING
SEQUENTIAL CONTROL LOGIC
11
9
12
GND2
7
10
14
5
8
GND1
CLALV
STB
RESET INT
HOLD
SOUT
1
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C,unless otherwise noted)
Symbol
VCC
Pd
Parameter
Supply voltage
Ratings
7.0
Unit
V
Remark
note 1
Power dissipation
320
mW
mW/ ˚C
V
Ta=25˚C
≥
Thermal derating
-3.2
K
Ta 25˚C
VIF
Pin supply voltage
7.0
Pin5,7,8,9,10,11
note 2
VI/O
Isout
Topr
Tstg
Another pin supply voltage
Output pin inflow current
Operating temperature
Storage temperature
-0.3 to VCC+0.3
0.5
V
mA
˚C
NPN open collector
-10 to 50
-40 to 125
˚C
C=200PF
R=0Ω
Vsurge
Surge voltage
±200V over
Note 1. As a principle,do not provide a supply voltage reversely.
2. As a principle,do not provide the terminals with the voltage over supply voltage or under ground voltage.
ELECTRICAL CHARACTERISTICS (Ta=25˚C,Vcc=3.0V, unless otherwise noted)
Limits
Symbol
Classification
Parameter
Operating supply
Test conditions
Unit
Min. Typ. Max.
VCC
ICC1
ICC2
2.2
3.0
5.9
5.5
7.7
V
voltage range
Usual consuming current
-
-
mA
While Rapid charge
consuming current 1
While CH rapid charge
consuming current
17.7 23.0 mA
19.0 24.7 mA
Consuming
current
While Rapid charge
consuming current 2
While CH and CINT rapid charge
consuming current
ICC3
-
ICC4
VHOH
VHOL
IHOH
IHOL
VINH
VINL
IINH
While STAND BY consuming current
HOLD "H" input voltage
HOLD "L" input voltage
HOLD "H" input current
HOLD "L" input current
INT "H" input voltage
-
1.1
-0.3
-
-
-
-
-
1.0
7.0
0.3
1.0
-50
7.0
0.3
1.0
-50
7.0
0.3
1.0
-50
7.0
0.3
1.0
-50
µA
V
V
HOLD pin
INT pin
VIH=5.5V
VIL=0V
µA
µA
V
-100 -75
1.1
-0.3
-
-
-
-
V
INT "L" input voltage
INT "H" input current
VIH=5.5V
VIL=0V
µA
µA
V
IINL
INT "L" input current
-100 -75
VCLH
VCLL
ICLH
ICLL
CLALV "H" input voltage
CLALV "L" input voltage
CLALV "H" input current
CLALV "L" input current
RESET "H" input voltage
RESET "L" input voltage
RESET "H" input current
RESET "L" input current
1.1
-0.3
-
-
-
-
V
CLALV pin
RESET pin
VIH=5.5V
VIL=0V
µA
µA
V
-100 -75
VREH
VREL
IREH
IREL
1.1
-0.3
-
-
-
-
V
VIH=5.5V
VIL=0V
µA
µA
-100 -75
VCC
-
VSTH
STB "H" input voltage
7.0
V
-0.3
VSTL
ISTH
STB "L" input voltage
-0.3
-
-
-
0.3
3.0
V
STB pin
HOLD C
STB "H" input current
VIH=5.5V
VIL=0V
µA
µA
µA
µA
µA
ISTL
STB "L" input current
-150 -100 -50
-2000 -1000 -500
ICHQC
ICHC
ICHD
CH rapid charge current
CH stationary charge current
CH stationary discharge current
IPSD=5 µA,
VCH=0V
VCH=0V
-30
10
-20
20
-10
30
VCH=1.5V
2
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
ELECTRICAL CHARACTERISTICS (cont.)
Limits
Typ.
120
Symbol
Classification
Parameter
Test conditions
Unit
Min.
84
Max.
156
2.0
ICINTC
VCINT
ICI1
CINT rapid charge current
CINT reference voltage
VCI=1V(CINT stable period)
GND criterion
µA
V
1.6
1.8
The first integration current
The second integration current
4.2
6.0
7.8
µA
µA
VCINT=1.5V
VCHF=2V, VCHN=0V
ICI2
-3.31
-2.54
-1.77
Double
integration
The first integration
current stability percentage
∆ICI1
∆ICI2
ICI12
-
-
-
-
10
10
%
%
The second integration
current stability percentage
The first and second
integration current ratio
ICI1 / ICI2
2.12
2.36
2.60
D(9:1)-1
D(6:4)-1
D(3:7)-1
∆AF-1
LAF-1
D(9:1)-2
D(6:4)-2
D(3:7)-2
∆AF-2
LAF-2
D(9:1)-3
D(6:4)-3
D(3:7)-3
∆AF-3
LAF-3
AF output time(9:1)-1
AF output time(6:4)-1
AF output time(3:7)-1
AF slope -1
Near side 9 : Far side 1
Near side 6 : Far side 4
Near side 3 : Far side 7
11.78
7.77
3.77
6.57
0.9
13.40
8.95
4.51
8.89
1.0
15.02 msec
10.13 msec
AF input
condition 1
5.25
msec
11.21 msec
1.1
AF linearity-1
AF output time(9:1)-2
AF output time(6:4)-2
AF output time(3:7)-2
AF slope -2
Near side 9 : Far side1
Near side 6 : Far side4
Near side 3 : Far side7
11.78
7.77
3.77
6.57
0.9
13.40
8.95
4.51
8.89
1.0
15.02 msec
10.13 msec
AF input
condition 2
5.25
msec
11.21 msec
1.1
AF linearity-2
AF output time(9:1)-3
AF output time(6:4)-3
AF output time(3:7)-3
AF slope -3
Near side 9 : Far side1
Near side 6 : Far side 4
Near side 3 : Far side 7
11.78
7.77
3.77
6.57
0.9
13.40
8.95
4.51
8.89
1.0
15.02 msec
10.13 msec
AF input
condition 3
5.25
msec
11.21 msec
1.1
AF linearity-3
Near side 9 : Far side1
(Consition 1-2)
∆D(9:1)
∆D(6:4)
∆D(3:7)
∆AF output time(9:1)
∆AF output time(6:4)
∆AF output time(3:7)
-
-
-
-
-
-
280
280
280
µsec
µsec
µsec
AF input
condition
1 minus 2
Near side 6 : Far side4
(Consition 1-2)
Near side 3 : Far side7
(Consition 1-2)
ISOUTL
VSOUTS
∆INF
SOUT leak current
VIN=5.5V
-
-
-
-
-
-
1.0
0.3
-
µA
V
Data
SOUT saturation voltage
Signal light saturation current
Stationary light remove current
Clamp level
IOUT=500µA
3.0
-
µA
µA
Sensor
IPSD
30
Change quantity for Typ.
current
ICLAM
-30
-
30
%
3
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
ICC2, ICC3, ICC4, ICHQC, ICHC, ICHD, ICINTC, VCINT, ICI1, ICI2
SOUT output at that time,obtain AF slope and AF linearity from the
equations below.
Set up the logic control terminal, correspond to the parameter.
∆ICI1, ∆ICI2
Input condition1 : IPSD(Stationary light current)=0
Input condition2 : IPSD(Stationary light current)=0
I1+I2=100nA
I1+I2=50nA
Change ratio between the first integration current and the second
integration current at a voltage of CINT that is
{CINT reference voltage(VCINT) to 0.1V} and 1V.
Input condition3 : IPSD(Stationary light current)=10 µA I1+I2=100nA
D(9 : 1)....The pulse width of SOUT output at input with I1:I2=9:1
D(6 : 4)....The pulse width of SOUT output at input with I1:I2=6:4
D(3 : 7)....The pulse width of SOUT output at input with I1:I2=3:7
The first integration current (CINT=1V)
∆ICI1=(1-
) X 100%
The first integration current (CINT=VCINT to 0.1V)
The second integration current (CINT=1V)
∆ICI2=(1-
) X 100%
AF slope : ∆AF=D(9 : 1) - D(3 : 7)
The second integration current (CINT=VCINT to 0.1V)
AF linearity : L(AF)=(D(9 : 1) - D(6 : 4))/(D(6 : 4) - D(3 : 7))
PSD quite resistance : 120kΩ
D(9 :1)-1, D(6 : 4)-1, D(3 : 7)-1, ∆AF-1, LAF-1, D(9 :1)-2, D(6 : 4)-2,
D(3 : 7)-2, ∆AF-2, LAF-2, D(9 :1)-3, D(6 : 4)-3, D(3 : 7)-3, ∆AF-3, LAF-3
Connect the resistance of 120kΩ instead of PSD and establish
current output from photo coupler correspond to the parameter. And
input the varied resistance ratio. And measure the pulse width of
∆INF, IPSD
The input current of one side channel when stationary light remove
circuit and I/V transform AMP is not saturated.
APPLICATION EXAMPLE
0.056µF
CINT
VCC
NC
3
4
6
CHN
TESTN
PULSE WIDTH
TRANSFORM
2
1
11
12
1.0µF
(DOUBLE INTEGRATION)
BIAS
STATIONARY
LIGHT
I/V
TRANSFORM
AMP
REMOVE
RECKON
I1
PSDN
REFERENCE
VOLTAGE
HOLD
HOLD
I1+I2
PSD
PSDF
CHF
STATIONARY
LIGHT
REMOVE
I/V
TRANSFORM
AMP
CLAMP
CIRCUIT
NC
13
16
15
HOLD
TESTF
CLAMP LEVEL
SWITCHING
SEQUENTIAL CONTROL LOGIC
1.0µF
PVCC
14
12
11
5
7
9
10
8
GND1
GND2
CLALV
STB RESET
INT HOLD SOUT
IRED
MICROCOMPUTER
4
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
(3) CLALV
CONTROLS
(1) STB
This terminal sets up clamp level.
This terminal enables IC to operate. IC is Standby at HIGH in
this terminal. IC can operate at LOW in this terminal.
As including D/A of 4bit,16way clamp level setting is possible by
inputting clock after reset is canceled(include none clamp).
(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.
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.
Bit
1
Set up current (Typ.)
0.125 nA
2
o.25 nA
3
0.5 nA
4
1.0 nA
H
L
Clock
value
Clamp
level(Typ.)
Clock
value
Clamp
level(Typ.)
Indefiniteness
Reset
Reset canceled
0
1
None clamp
0.125 nA
0.250 nA
0.375 nA
0.500 nA
0.625 nA
0.750 nA
0.875 nA
1.000 nA
1.125 nA
1.250 nA
1.375 nA
12
13
14
15
16
17
18
19
20
1.500 nA
1.625 nA
1.750 nA
1.875 nA
None clamp
0.125 nA
0.250 nA
0.375 nA
0.500 nA
While this terminal is HIGH,dielectric divide pole
countermeasures circuit of integration condenser is active.
2
3
4
5
6
7
8
9
10
11
Clamp level is established with fall edge of input clock.
It repeats the same value after 16 clock.
5
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
(4) HOLD, INT
These terminals implement the following controls by inputting
HIGH/LOW.
a. CINT rapid charge ON, OFF
b. CH rapid charge ON, OFF
c. Stationary light hold ON, OFF
d. The first integration ON, OFF
e. The second integration ON, OFF
Stationary light hold
HOLD
The first
integration
The second
integration
CINT
rapid charge
CH
INT
rapid charge
Reset canceled
a. CINT rapid charge
(5) SOUT
After reset is canceled, the capacity of CINT is charged rapidly
until INT terminal first falls.
When the second integration starts,This terminal becomes from
HIGH to LOW. If CINT terminal exceeds judge level or INT
terminal becomes from HIGH to LOW, this terminal becomes
from LOW to HIGH.
b. CH rapid charge
After reset is canceled, the capacity of CH is charged rapidly
until INT terminal first rises and falls.
(notice) As the signal from microcomputer,the signal that controls
IRED ON/OFF is required except for above mentioned
control signals. But applying the timing of HOLD is
available.
c. Stationary light hold
After reset is canceled, holds the stationary light while HOLD
terminal is HIGH.
d. The first integration
After reset is canceled, as HOLD terminal is HIGH and INT
terminal is HIGH, the first integration is implemented while INT
terminal is HIGH. Therefore,the first integration must be
finished(INT terminal from HIGH to LOW) until stationary light
hold will be completed (HOLD terminal from HIGH to LOW)
e. The second integration
After reset is canceled, the second integration is implemented as
HOLD terminal is LOW and INT terminal is HIGH. And,the
second integration is completed by exceeding judgement level of
CINT terminal although INT terminal is HIGH.
6
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
SEQUENTIAL TIME CHART EXAMPLE
7
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
MASK OPTION
(1) The second integration current value can be doubled.
(2.5µ 5.0µA)
0.125nA
0.25nA
0.5nA
1.0nA
(2) Control terminal variation
1
Full spec (typical)
C
L
R
E
S
E
T
H
O
L
S
O
U
T
A
L
S
T
B
I
N
T
Fixes 3 parts of 4 switches correspond to each bit in figure to ON or
OFF,controls another part by CLALV terminal .
V
D
11
5
7
9
10
8
(b) STB
When no standby function required such as VCC is switched ON/
OFF,STB terminal can be eliminated.
MICROCOMPUTER
(c) RESET
Since IC include power on reset circuit,RESET terminal can be
eliminated. As merit of controlling RESET terminal from
outside,distance detection time can be shortened because
there is no need to switch VCC or STB Terminal ON /OFF at
consecutive distance detection.
This type uses CLALV, STB, RESET, INT, HOLD, SOUT terminal as
I/F terminal to the microcomputer.
This is the typical type at M52957FP.
2
Most simplified type
H
O
L
S
O
U
T
I
N
T
D
9
10
8
MICROCOMPUTER
This type does not connect CLALV, STB, RESET terminals to the
microcomputer.
When above mentioned terminals are not connected to the
microcomputer without changing mask,connect each terminal to
the ground. In this case,clamp level becomes 0 and standby
function is lost. Power on reset in IC is used as reset.
3
Explanation of the terminal that can be simplified.
(a) CLALV
In the typical type,16way clamp levels can be set by the external
control,but also the terminal can be simplified by mask option
as follows.
1. Clamp level fixation
Selects 1 point from 16 steps of clamp level and fixes it.
2. Clamp level 2 step changeover
Selects 2 points from clamp level and switches it by changing
CLALV terminal HIGH/LOW. However,as selecting 2 points,
there is a following constraint.
8
MITSUBISHI ICs (AV COMMON)
M52957FP
DISTANCE DETECTION SIGNAL PROCESSING FOR 3V SUPPLY VOLTAGE
DESCRIPTION OF PIN
Limits
Typ.
Test conditions
and note
Name
Peripheral circuit of pins
Parameter
Unit
V
Min.
1.1
Max.
7.0
"H" input
voltage
-
-
-
HOLD
"L" input
voltage
-
-
0.3
1.0
INT
"H" input
current
CLALV
RESET
VIH=5.5V
VIL=0V
µA
"L" input
current
-100
-75
-50
"H" input
voltage
VCC
-0.3
-
-
-
7.0
0.3
3.0
V
"H" input
voltage
-
-
STB
"H" input
current
VIH=5.5V
VIL=0V
µA
"L" input
current
-150
-100
-50
0.3
1.0
"L" output
voltage
-
-
-
-
V
IOL=500µA
SOUT
"H" leak
current
µA
VIN=5.5V
9
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