4

Encoding Characteristics

Encoding Characteristics over the Recommended Operating Conditions and Mounting Conditions.

Parameter

Symbol

Typical

Maximum

Units

Notes

Pulse Width Error

∆P15

55

°e

HEDR-8010

Pulse Width Error (Ch.A,Ch.B)

∆P16

75

°e

HEDR-8100

Phase Error

∆f

10

60

°e

HEDR-8100

Pulse Width Error (Ch.A,Ch.B)

∆P

15,25

55,75

°e

HEDR-8000

Phase Error

∆f

12

60

°e

HEDR-8000

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

Temperature

-10

85

°C

Supply Voltage

4.5

5.0

5.5

Volts

Ripple < 100 mVp-p

LED Current

13

15

18

mA

See “Current Limiting

Resistor for LED”

Load Capacitance

100

pF

2.7 K

Ω Pull-Up

Count Frequency

f

15

kHz

Velocity (rpm) x N/60

Radial Misalignment

±0.38

mm

(

±0.015)

(in.)

Tangential Misalignment

±0.38

mm

(

±0.015)

(in.)

Angular Misalignment

0

±1.5

deg.

Codewheel or Codestrip

G

1.52

2.03

2.54

mm

HEDR-8000

Gap

(0.060)

(0.080)

(0.100)

(in.)

HEDR-8010

G

1.02

1.52

2.03

mm

HEDR-8100

(0.040)

(0.060)

(0.080)

(in.)

Codewheel or Codestrip

60%

As Measured on TMA

Specular Reflectance

µscan Scope (see Note 1)

Codewheel/Codestrip Tilt

0

1

deg.

Codewheel/Codestrip

LPmm

2.76

2.95

lines/mm

HEDR-8000

Resolution

(LPI)

(70)

(75)

(lines/in.)

HEDR-8010

LPmm

5.91

lines/mm

HEDR-8100

(LPI)

150

(lines/in.)

Note:

1. Contact factory for more information regarding measurement of specular reflectance.

Absolute Maximum Ratings

-40

°C to 85°C

-10

°C to 85°C

-0.5 V to 7 V

Output Current per Channel, I

OUT

-1.0 mA to 5 mA

Note: Exposure to extreme light intensity (such as from flashbulbs or spotlights) can cause

permanent damage to device.

Note:

Typical Value was obtained at typical condition. Maximums were obtained over all range of recommended operating condition and mounting condition.