MX172 [Macronix]
TRIANGULAR TYPE AUTO FOCUS IC; 三角型自动聚焦IC
| 型号： | MX172 |
| 厂家： | 
MACRONIX INTERNATIONAL |
| 描述： | TRIANGULAR TYPE AUTO FOCUS IC |
| 文件： | 总6页 (文件大小：44K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MX172
TRIANGULAR TYPE AUTO FOCUS IC
FEATURES
• Surround light level : max. 50uA (PSD output current)
• IRED drive output : min. 20mA
• Package : 14-pin SSOP
• Operating voltage : 2V~4V
• Magnet drive current : min. 200mA
• Measuring time : max. 50ms
o
o
• Operating temperature : -25 C~60 C
• Supply current : max. 10mA (without output current)
• Input current level : 1nA~5uA
DESCRIPTION
MX172 is designed for Triangular system auto focus
cameras. It is regarded as input component for PSD
(Position Sensitive Diode), and comprises of circuits that
drive AF magnet as output, an infrared emission diode
current control circuit, and control circuit of sequential
timing.
PIN FUNCTIONS
PIN CONFIGURATION
14 SSOP
SYMBOL
GND
CH1
PIN NAME
Ground Pin
14
13
12
11
10
9
GND
CH1
PSD1
PSD2
CH2
VCC
VE
OUT1
OUT2
IRED
CTRL
CT
Hold Capacitor Pin 1
PSD Input Pin 1
2
3
4
5
6
7
PSD1
PSD2
CH2
PSD Input Pin 2
Hold Capacitor Pin 2
Supply Pin (Secondly)
Supply Pin (Battery)
VR Pin for Adjustment 2
VR Pin for Adjustment 1
Timing Capacitor
VCC
VE
VR1
8
VR2
VR2
VR1
CT
CTRL
IRED
OUT2
OUT1
Power Control
Output Control for IRED
Data Output Pin 2 (MSB)
Data Output Pin 1(LSB)
REV. 2.1, AUG 29, 1995
1
P/N: PM0168
MX172
BLOCK DIAGRAM
VR1
VR2
Comparator
GND
Surrounding light
rejection 1
Latch
and
AF Adjust
Inf.Cramp
CH1
Output
Driver
Output1, 2
Encode
PSD1
PSD2
Head Amp.1
Head Amp.2
IRED
Operation
IRED Drive Circuit
Surrounding light
rejection 2
CH2
Vcc
Sequence Control Logic
Timing Circuit
Switch
VE
CTLR
C Timing
BASIC CONNECTION DIAGRAM
1
2
3
4
5
6
7
GND
CH1
PSD1
PSD2
CH2
VCC
VE
OUT1 14
OUT2 13
IRED 12
C1
C2
0.47
IRED
m
F
PSD
R3
CTRL 11
SW1
C4
C TIMING 10
m
0.022 F
C3
0.47
m
F
VR1
VR1
VR2
9
8
VR2
REV. 2.1, AUG 29, 1995
P/N: PM0168
2
MX172
ABSOLUTE MAXIMUM RATINGS
SYMBOL
VCC
PARAMETER
RATING
-0.3~4.0
350
UNIT
V
CONDITION
Supply Voltage
o
PD
Power Dissipation
Power Dissipation Ratio
Input Voltage
mW
TA<25 C
o
o
PDR
-3
mW/ C
TA>25 C
VIN
-0.3~VCC+0.3
-0.3~7.0
400
V
BVOC
IOUT
TOPR
TOPR
TSTG
Output Voltage
V
Output Current
mA
oC
oC
oC
Operating Temperature 1
Operating Temperature 2
Storage Temperature
-25~+60
-15~+50
-55~+150
(NOTE)
NOTE: The operating temperature 1 range expresses the qualitative
operating temperature range but it does not guarantee charac-
teristics.
DC CHARACTERISTICS (TA = 25oC, VCC = 2.2V, 3.0V, 4.0V)
SUPPLY CURRENT
SYMBOL
ICC1
PARAMETER
MIN
TYP
MAX
UNIT
uA
CONDITION
Standby Current
3.0
7.0
7.0
5.0
5.0
8.0
40.0
ICC1
Quick Charge State (Charge)
Quick Charge State (Discharge)
Steady State (Charge)
Steady State (Discharge)
IRED Flashing State
Finish State
2.5
2.5
2.0
2.0
mA
mA
mA
mA
mA
mA
ICC2
ICC3
ICC4
ICC5
ICC6
TIMING CIRCUIT
SYMBOL
ICT
PARAMETER
MIN
0.8
TYP
1.3
MAX
2.0
UNIT
uA
CONDITION
CT Charge Current
Discharge Resistance
Threshold Voltage1
Threshold Voltage2
Deference Vth2/3
RCT
5.6
7.0
8.5
K ohm
mV
VTH1
655
1280
14.0
680
1383
25.0
740
1420
35.0
220
VTH2
mV
DVTH2/3
VSATPNP
mV
VE/VCC PNP VCE (SAT)
mV
REV. 2.1, AUG 29, 1995
P/N: PM0168
3
MX172
HEAD AMPLIFIER/ADJUSTMENT CIRCUIT
SYMBOL
VIN
PARAMETER
MIN
620
16.0
38.0
318
530
TYP
MAX
UNIT
mV
uA
CONDITION
Input Voltage
680
740
ISDMX
IADJ
Max. Surround Light
Adj. VR Current
Compare Voltage1
Compare Voltage2
44.0
336
560
50.0
354
590
uA
VCOMP1
VCOMP2
mV
mV
Signal Ratio=3:7
Signal Ratio=5:5
HOLD CAPACITOR CHARGE/DISCHARGE CURRENT
SYMBOL
ICH1
PARAMETER
MIN
-300
460
-7
TYP
MAX
-1000
1200
-16
UNIT
uA
CONDITION
Quick Charge Current
Quick Discharge Current
Steady Charge Current
Steady Discharge Current
CH Input Current
ICH2
uA
ICH3
-11
11
uA
ICH4
7
16
uA
ICH5
100
nA
DATA OUTPUT TERMIANAL
SYMBOL
PARAMETER
MIN
TYP
MAX
1.0
UNIT
uA
uA
mV
mA
V
CONDITION
VO = 10.0V
VO=VCC
IOUTLK1
Output Leak Current 1
Output Leak Current 2
Saturation Voltage
Max. Output Current1
Max. Voltage1
IOUTLK2
1.0
VOUTSAT1
IOUTMX1
VOUTMAX1
VOUTSAT2
IOUTMX2
VOUTMX2
300
IO = 20mA
20
10.0
300
Saturation Voltage2
Max. Output Current2
Max. Voltage2
mV
mA
V
IO = 300mA
IO = 300mA
300
6.0
8.0
10.0
IRED FLASHING CONTROL CIRCUIT
SYMBOL
VIRED1
VIRED2
IIREDMX
PARAMETER
MIN
TYP
MAX
1030
350
UNIT
mV
CONDITION
IRED Voltage (ON)
IRED Voltage (OFF)
Max. Output Current
920
980
mV
15.0
mA
REV. 2.1, AUG 29, 1995
P/N: PM0168
4
MX172
TIMING WAVEFORM
SW1 (POWER)
IRED
AF MAG.
20MS (TYP.)
0.12MS (TYP.)
ORDERING INFORMATION
PART NO.
PACKAGE
MX172MC
14 pin SSOP
PACKAGE INFORMATION
14 PIN PLASTIC SSOP
14
8
UNIT : mm
1
7
5.0+0.3
6.4+0.3
4.4+0.2
0.22+0.1
0.65
0.10
0.3 MIN
REV. 2.1, AUG 29, 1995
P/N: PM0168
5
MX172
MACRONIX INTERNATIONAL CO., LTD.
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TEL:+886-3-578-8888
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TEL:+1-847-963-1900
FAX:+1-847-963-1909
http : //www.macronix.com
MACRONIX INTERNATIONAL CO., LTD. reserves the rignt to change product and specifications without notice.
6
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