Manual epc10x

Parameter

Name

Register No.

Bit No.

Function

ROM

RAM

FUSEBIT

1

17

0

This bit will automatically be set when register 17 is programmed.

0 Values

0 Register 17 is not programmed

1 Register 17 is programmed

TPER

1

17

15..13

must be set to “010”

15

14

13

0

1

0

Table 4: epc100 Registers 1 and 17

Parameter

Name

Register No.

Bit No.

Function

ROM

RAM

FUSEBIT

2

18

0

This bit will automatically be set when register 18 is programmed.

0 Values

0 Register 18 is not programmed

1 Register 18 is programmed

SENSN

2

18

3..1

Lower threshold setting of the receiver input (sensitivity).

3

2

1

Values Default Recommended Comments

0

0

0

24nA

X

A lower value increases the sensitivity. A too sensitive setting leads to

false readings because of shot noise of the receiver photodiode and the

internal amplifier (typ. input noise level is 7nA RMS without photodiode).

Also induced EMI can lead to false readings if the sensitivity is set too

low. The EMI sensitivity is heavily depending on the system architecture

and the electromechanical design. The better the shielding of the chip

and the photodiode and the better the PCB layout, the better the EMI

immunity. The tolerance of the threshold is approx. ±25%.

0

0

1

36nA

0

1

0

48nA

0

1

1

60nA

X

1

0

0

72nA

1

0

1

84nA

1

1

0

96nA

1

1

1

108nA

SENSH

2

18

6..4

Upper threshold setting of the receiver input (light reserve level). The tolerance of the threshold is

approx. ±25%.

6

5

4

Values

Default

Recommended Setting

0

0

0

60nA

X

Set this value 50% above

the value set at SENSN,

i.e., if SENSN is set to

48nA, set SENSH to

72nA.

0

0

1

72nA

0

1

0

84nA

0

1

1

96nA

1

0

0

108nA

1

0

1

120nA

1

1

0

132nA

1

1

1

144nA

SLOW

2

18

7

no function, must be set to “1”

IVCOFF

2

18

8

no function, must be set to “0”

SENS

2

18

9

must be set to “1”

n/a

2

18

12..10

no function, must be set to “0”

TSET

2

18

15..13

Settling time delay from inactive to active mode.

15 14

13

Values

Default

Comments

0

0

0

0

X

0

0

1

1

Table 5: epc100 Registers 2 and 18

© 2013 ESPROS Photonics Corporation

Characteristics subject to change without notice

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Manual epc100 - V2.3-DRAFT 130812

www.espros.ch