4

Figure 1. Transmitter and receiver application circuit with +5 V ECL inputs and outputs.

Plastic and Hard Clad Silica Optical Fiber Receiver Application Circuit

otherwise stated.

Parameter

Symbol

Typical

Unit

Condition

Note

Data Output Voltage – Low

V



Note 5

Data Output Voltage – High

V



Note 5

Receiver Sensitivity to Average Modulated

Optical Power 1 mm POF

-27.5

dBm

50% eye opening

Note 2

Receiver Sensitivity to Average Modulated

Optical Power 200

m HCS

-28.5

dBm

50% eye opening

Note 2

Receiver Overdrive Level of Average Modulated

Optical Power 1 mm POF

-7.5

dBm

50% eye opening

Note 2

Receiver Overdrive Level of Average Modulated

Optical Power 200

m HCS

-10.5

dBm

50% eye opening

Note 2

Receiver Application Circuit Current Consumption

TBA

mA



Figure 1

Notes:

4. Performance in response to a signal from the HFBR-1527ETZ transmitter driven with the recommended circuit at 1-125 MBd over 1 m of HFBR-RZ/

EXXYYYZ plastic optical fiber or 1 m of hard clad silica optical fiber.

5. Terminated through a 50

6. If there is no input optical power to the receiver, electrical noise can result in false triggering of the receiver. In typical applications, data encoding

and error detection prevent random triggering from being interpreted as valid data.

1

2

3

4

5

8

U2A

HFBR-15X7ETZ

U1C

74ACTQ00

Q3

MMBT3904LT1

8

11

6

10

9

+

U1D

74ACTQ00

13

12

U1B

74ACTQ00

U1A

74ACTQ00

5

4

3

2

1

L1

TDK

#HF30ACB453215

C7

0.001 F

+5 V

TD+

R8

TD–

C6

0.1 F

C5

10 F

C4

0.001 F

C3

0.1 F

C2

0.1 F

C1

0.001 F

R9

C8

R10

R6

91

R7

91

R11

R5

22

Q2

BFT92

Q1

BFT92

0 V

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

MC2045-2Y

1

2

3

4

5

8

U3A

HFBR-

2526ETZ

R13

4.7

R12

4.7

C9

0.1 F

C10

0.1 F

C12

10 nFC11

10 nF

C14

10 nF

C13

1 nF

R18

2.2k

R17

2.2k

R14

800

C19

0.1 F

C21

0.1 F

L3

COILCRAFT 1008LS-122XKBC

L2

COILCRAFT 1008LS-122XKBC

RD+

RD-

SD+

0 V

+5 V

Caz-

Caz+

GDNa

Din

Din

Vcca

CF

JAM

NC

Vcce

Dout

Dout

GDNe

ST

ST

Vset

+

C20

10 F

+

C22

10 F