HLC2701 [HONEYWELL]
Encoder Detector; 编码器检测仪
| 型号： | HLC2701 |
| 厂家： | 
Honeywell |
| 描述： | Encoder Detector |
| 文件： | 总4页 (文件大小：486K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Encoder Detector
FEATURES
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Side-looking plastic package
TTL/LSTTL/CMOS compatible
Inverting logic output
Linear or rotary encoder applications
Resolution to 0.009 in.(.229 mm)
Sensitivity versus temperature compensation
Mechanically and spectrally matched to
SEP8506 and SEP8706 infrared emitting diodes
INFRA-74.TIF
DESCRIPTION
OUTLINE DIMENSIONS in inches (mm)
The HLC2701 detector is designed to sense speed and
direction of mechanical motion. Applications include
rotary and linear encoders; the device is especially well
suited for the encoding function in an optical mouse.
The detector is a monolithic IC, consisting of two narrow
adjacent photodiodes, amplifiers, and Schmitt trigger
output stages. The outputs are NPN collectors with
internal 10 kì (nominal) pull• up resistors to VÙÙ which
can directly drive TTL loads. It incorporates circuitry to
compensate the sensitivity for the output power versus
temperature characteristics of an IRED. The IC is
encapsulated in a molded, unlensed black plastic
package which is transmissive to IR energy, yet
provides shielding from visible light.
Tolerance
3 plc decimals
2 plc decimals
±0.005(0.12)
±0.020(0.51)
In a typical application, the HLC2701 is used in
conjunction with an IRED and an encoder disk or linear
encoder strip attached to an element for which speed
and direction of movement is to be sensed. As the
interruptive pattern moves, the sensor provides two
phase shifted output signals (active low) which can be
processed to provide the speed and direction
information.
The sensing areas of the IC are each 0.008 in.(.203
mm) in width and in .015in.(.381 mm) in height with a
0.001 in.(.0254 mm) separation, for center• to• center
spacing of 0.009 in.(.203 mm), and outside edge to
edge distance of 0.017 in.(.432 mm).
DIM_030.cdr
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
208
h
Encoder Detector
ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL MIN TYP MAX
UNITS
TEST CONDITIONS
ABSOLUTE MAXIMUM RATINGS
(25¡C Free-Air Temperature unless otherwise noted)
Duration of Output
Short to VÙÙ or Ground
1.0 sec.
Operating Temperature Range
Storage Temperature Range
Soldering Temperature (5 sec)
-40¡C to 85¡C
-40¡C to 85¡C
240¡C
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
209
h
Encoder Detector
FUNCTIONAL BLOCK DIAGRAM
SWITCHING TIME TEST CIRCUIT
SCH_045.cdr
cir_014.cdr
gra_066.ds4
gra_061.ds4
SWITCHING WAVEFORM
Fig. 1
Responsivity vs
Angular Displacement
cir_011.cdr
100%
90%
80%
70%
60%
50%
-100 -80 -60 -40 -20
0
20 40 60 80 100
Angular displacement - degrees
Fig. 2
Threshold Irradiance vs Temperature
Fig. 3
Output Rise Time (t²) and Output Fall
Time (t¶) vs Temperature
gra_060.ds4
240
220
200
180
160
140
120
100
80
Symbol definition & test
circuit per figures
2.0
1.0
0.5
0.4
0.3
0.2
Rise time TR
Fall time TF
60
40
20
0.0
-40 -20
0
20 40 60 80 100
-40 -20
0
20 40 60 80 100
Temperature - °C
Temperature - °C
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
210
h
Encoder Detector
Fig. 4
Delay Time vs Temperature
Fig. 5
Spectral Responsivity
1.0
gra_062.ds4
gra_050.ds4
4.2
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
3.8
3.4
3.0
2.6
2.2
1.8
1.4
0.0
TPLH
TPHL
600
700
800
900 1000 1100 1200
-40 -20
0
20 40 60 80 100
Wavelength - nm
Ambient temperature - °C
All Performance Curves Show Typical Values
Honeywell reserves the right to make
changes in order to improve design and
supply the best products possible.
211
h
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