HEDS-9100-S00 [AVAGO]

SINGLE, 2 CHANNELS, ROTARY OPTICAL POSITION ENCODER, PLASTIC PACKAGE-5;


型号：	HEDS-9100-S00
厂家：	AVAGO TECHNOLOGIES LIMITED
描述：	SINGLE, 2 CHANNELS, ROTARY OPTICAL POSITION ENCODER, PLASTIC PACKAGE-5 编码器光电
文件：	总8页 (文件大小：378K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

HEDS-9000/9100

Two Channel Optical Incremental Encoder

Modules

DataSheet

Description

Features

The HEDS-9000 and the HEDS-9100 series are high

performance, low cost, optical incremental encoder

modules. When used with a codewheel, these modules

detect rotary position. The modules consist of a lensed

(LED) source and a detector IC enclosed in a small

C-shaped plastic package. Due to a highly collimated

light source and unique photodetector array, these

modules are extremely tolerant to mounting

misalignment.

• High performance

• High resolution

• Low cost

• Easy to mount

• No signal adjustment required

• Small size

• -40°C to 100°C operating temperature

• Two channel quadrature output

• TTL compatible

The two channel digital outputs and the single 5 V

supply input are accessed through five 0.025 inch

square pins located on 0.1 inch centers.

• Single 5 V supply

Standard resolutions for the HEDS-9000 are 500 CPR

and 1000 CPR for use with a HEDS-6100 codewheel or

equivalent.

Package Dimensions

26.67 (1.05)

15.2

8.6 (0.34)

(0.60)

0.63 (0.025)

2.54 (0.100) TYP.

SQR. TYP.

1.8

(0.07)

1.52 (0.060)

OPTION CODE

5.1 (0.20)

1.0 (0.04)

2.9

(0.11)

DATE CODE

2.21

(0.087)

6.9 (0.27)

11.9

(0.47)

2.54

(0.100)

3.73 ± 0.05

(0.147 ± 0.002)

20.8

(0.82)

H E D S - 9 X 0 0

1.02 ± 0.10

(0.040 ± 0.004)

11.7

(0.46)

8.81

(0.347)

4.75 ± 0.10

5.8

(0.23)

45°

(0.187 ± 0.004)

OPTICAL

CENTER LINE

2.67 (0.105) DIA.

MOUNTING THRU

HOLE 2 PLACES

ALIGNING RECESS

2.44/2.41 DIA.

ALIGNING RECESS

2.44/2.41 X 2.79

1.85 (0.073)

1.78 ± 0.10

(0.070 ± 0.004)

5.46 ± 0.10

(0.215 ± 0.004) (0.096/0.095 X 0.110)

(0.096/0.095)

2.16 (0.085)

DEEP

ALIGNING RECESS

2.44/2.41 DIA.

(0.096/0.095)

8.64 (0.340)

REF.

2.44/2.41 X 2.79

(0.096/0.095 X 0.110)

2.16 (0.085) DEEP

2.92 ± 0.10

(0.115 ± 0.004)

17.27

(0.680)

2.16 (0.085) DEEP

OPTICAL

CENTER

4.11 (0.162)

10.16

(0.400)

20.96

(0.825)

OPTICAL CENTER

6.35 (0.250) REF.

TYPICAL DIMENSIONS IN

MILLIMETERS AND (INCHES)

SIDE A

SIDE B

ESD WARNING: NORMAL HANDLING PRECAUTIONS SHOULD BE TAKEN TO AVOID STATIC DISCHARGE.

For the HEDS-9100, standard

resolutions between 96 CPR and

512 CPR are available for use

with a HEDS-5120 codewheel or

equivalent.

Block Diagram

Applications

The HEDS-9000 and 9100

provide sophisticated motion

detection at a low cost, making

them ideal for high volume

applications. Typical applications

include printers, plotters, tape

drives, and factory automation

equipment.

Note: Avago Technologies

encoders are not recommended

for use in safety critical

applications. Eg. ABS braking

systems, power steering, life

support systems and critical care

medical equipment. Please

contact sales representative if

more clarification is needed.

Output Waveforms

Theory of Operation

The HEDS-9000 and 9100 are C-

shaped emitter/detector modules.

Coupled with a codewheel, they

translate the rotary motion of a

shaft into a two-channel digital

output.

As seen in the block diagram,

each module contains a single

Light Emitting Diode (LED) as its

light source. The light is

collimated into a parallel beam by

means of a single polycarbonate

lens located directly over the

LED. Opposite the emitter is the

integrated detector circuit. This

IC consists of multiple sets of

photodetectors and the signal

processing circuitry necessary to

product the digital waveforms.

by the pattern of spaces and bars

on the codewheel. The

outputs are then fed through the

signal processing circuitry

photodiodes which detect these

interruptions are arranged in a

pattern that corresponds to the

radius and design of the ode-

wheel. These detectors are also

spaced such that a light period on

one pair of detectors corresponds

to a dark period on the adjacent

pair of detectors. The photodiode

resulting in A, A, B, and B. Two

comparators receive these signals

and produce the final outputs for

channels A and B. Due to this

integrated phasing technique, the

digital output of channel A is in

quadrature with that of channel B

(90 degrees out of phase).

The codewheel rotates between

the emitter and detector, causing

the light beam to be interrupted

Definitions

Absolute Maximum Ratings

Count (N): The number of bar

and window pairs or counts per

revolution (CPR) of the

codewheel.

Storage Temperature, T_S^{.....................................................................}-40°C to 100°C

Operating Temperature, T_A^{................................................................}-40°C to 100°C

Supply Voltage, V ^{......................................................................................}-0.5 V to 7 V

Output Voltage, V ^{........................................................................................}-0.5 V to V

Output Current per Channel, I_out^{.................................................}-1.0 mA to 5 mA

1 Shaft Rotation = 360

mechanical

degrees,

= N cycles.

1 cycle (C) = 360

electrical

transition in the output of channel

A and the neighboring transition

in the output of channel B. There

are 4 states per cycle, each

nominally 90°e.

Pha se Er r or (∆φ): The deviation

of the phase from its ideal value

of 90°e.

degrees (°e),

= 1 bar and

window pair.

Dir ection of Rota tion: When the

codewheel rotates in the direction

of the arrow on top of the

module, channel A will lead

channel B. If the codewheel

rotates in the opposite direction,

channel B will lead channel A.

Pulse Width (P): The number of

electrical degrees that an output

is high during 1 cycle. This value

is nominally 180°e or 1/2 cycle.

Sta te Width Er r or (∆S): The

deviation, in electrical degrees, of

each state width from its ideal

value of 90°e.

Pulse Width Er r or (∆P): The

deviation, in electrical degrees of

the pulse width from its ideal

value of 180°e.

Pha se (φ): The number of elec-

trical degrees between the center

of the high state of channel A and

the center of the high state of

channel B. This value is nominally

90°e for quadrature output.

Optica l Ra dius (R_op): The dis-

tance from the codewheel’s center

of rotation to the optical center

(O.C.) of the encoder module.

Sta te Width (S): The number of

electrical degrees between a

Recommended Operating Conditions

Parameter

Temperature

Symbol

Min.

-40

Typ.

Max.

100

5.5

Units

Notes

°C

Volts

Supply Voltage

Load Capacitance

Count Frequency

4.5

Ripple < 100 mV_p-p

C_L

100

3.3 kΩ pull-up resistor

kHz

Velocity (rpm) x N

Note: The module performance is guaranteed to 100 kHz but can operate at higher frequencies.

Encoding Characteristics

Encoding Characteristics over Recommended Operating Range and Recommended Mounting Tolerances.

These Characteristics do not include codewheel/codestrip contribution.

Description

Pulse Width Error

Logic State Width Error

Phase Error

Sym.

∆P

Typ.

Case 1 Max.

Case 2 Max.

Units

°e

Notes

∆S

°e

∆φ

105

°e

Case 1: Module mounted on tolerance circle of ± 0.13 mm (± 0.005 in.).

Case 2: HEDS-9000 mounted on tolerances of ± 0.50 mm (0.020").

HEDS-9100 mounted ontolerances of ± 0.38 mm (0.015").

Electrical Characteristics

Electrical Characteristics over Recommended Operating Range, typical at 25°C.

Parameter

Supply Current

Symbol

Min.

Typical

Max.

Units

Notes

I_CC

High Level Output Voltage

Low Level Output Voltage

Rise Time

2.4

Volts

I_OH= -40 µA max.

0.4

I_OL= 3.2 mA

t_r

t_f

200

C_L= 25 pF

R_L= 11 kΩ pull-up

Fall Time

Derating Curves over Extended Operating Frequencies (HEDS-9000/9100)

Below are the derating curves for state, duty, phase and V_OHover extended operating frequencies of up to

240 kHz (recommended maximum frequency is 100 kHz). The curves were derived using standard TTL load.

–40°C operation is not feasible above 160 kHz because V_OHwill drop below 2.4 V (the minmum TTL for logic

state high) beyond that frequency.

-10

-20

-30

-40

-50

-40°C

25°C

100°C

25°C

-40°C

120 140 160 180 200 220 240

FREQUENCY (kHz)

-5

100°C

25°C

100°C

25°C

-10

-40°C

120 140 160 180 200 220 240

FREQUENCY (kHz)

120 140 160 180 200 220 240

FREQUENCY (kHz)

Recommended Codew heel Characteristics

Codew heel Options

Optical

Radius

mm (in.)

HEDS

Series

CPR

(N)

Option

5120

11.00 (0.433)

100

192

200

256

360

400

500

512

Figure 1. Codestrip Design

6100

500

1000

23.36 (0.920)

Parameter

Window/Bar Ratio

Window Length

Symbol

φ_w/φ_b

L_W

Minimum

0.7

Maximum

Units

Notes

1.4

1.8 (0.071)

2.3 (0.09)

mm (inch)

Absolute Maximum

Codewheel Radius

R_C

R_OP+ 1.9 (0.0075) mm (inch) Includes eccentricity

errors

Mounting Considerations

Figure 2. Mounting Plane Side A.

Figure 3. Mounting Plane Side B.

Figure 4. Mounting as Referenced to Side A.

Figure 5. Mounting as Referenced to Side B.

Connectors

Mounting

Surface

Manufacturer

Part Number

AMP

1203686-4

640442-5

Both

Side B

DuPont

65039-032 with

4825X-000 term.

Both

HEDS-8902

Side B

with 4-wire leads (see Fig. 6)

Molex

2695 series with

2759 series term.

Side B

Figure 6. HEDS-8902 Connector.

Ordering Information

HEDS-9000 Option

HEDS-6100 Option

Resolution

Shaft Diameter

(Cycles/Rev)

06 - 1/4 in.

08 - 3/8 in.

09 - 1/2 in.

10 - 5/8 in.

12 - 6 mm

13 - 8 mm

A - 500 CPR

B - 1000 CPR

J - 1024 CPR

T - 2000 CPR*

U - 2048 CPR*

HEDS-9000

HEDS-6100

01 02 03 04 05 06 08 09 10 11 12 13 14

HEDS-910 0 Option

Lead

HEDS-5120 Option

Resolution

(Cycles/Rev)

Shaft Diameter

0 - Straight Leads

1 - Bent Leads

H - 400 CPR

S - 50 CPR

K - 96 CPR

C - 100 CPR

E - 200 CPR

F - 256 CPR

G - 360 CPR

01 - 2 mm

02 - 3 mm

03 - 1/8 in.

04 - 5/32 in.

05 - 3/16 in.

06 - 1/4 in.

11 - 4 mm

14 - 5 mm

12 - 6 mm

13 - 8 mm

A - 500 CPR

I - 512 CPR

B - 1000 CPR*

J - 1024 CPR*

HEDS-9100

HEDS-9101

01 02 03 04 05 06 08 09 10 11 12 13 14

HEDS-5120

For product information and a complete list of distributors, please go to our website: www.avagotech.com

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies Limited in the United States and other countries.

5988-6712EN November 3, 2006

HEDS-9100-S00 [AVAGO]

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