2

GND 1

GND 2

GND 3

Imon 4

SD 5

VDD 6

GND 7

DOUT- 8

GND 9

GND 10

20 GND

19 GND

18 GND

17 EN

16 NC

15 VDD15

14 GND

13 DOUT+

12 GND

11 GND

GND 1

GND 2

GND 3

VDD 4

GND 5

FILT 6

GND 7

DIN+ 8

GND 9

GND 10

20 GND

19 GND

18 GND

17 ACTIVE

16 NC

15 NC

14 GND

13 DIN-

12 GND

11 GND

Fiber

Fiber

Top View

BF4MC-TX Plug

BF4MC-RX Plug

<Pin Assignment>

<Pin Functions>

Descriptions of BF4MC-TX pins

Synbol

Name

Type

Details

VDD

Vsupply

Power Power Supply DC+2.5 or +3.3V

GND

Ground

Ground

-------

ACTIVE

Activate

Input

H voltage:Active mode

L voltage:Sleep mode

FILT

Filter

------- Decouping condenser connection contact

DIN+

Data input +

Input

Differential Data Input

DIN–

Data input –

Input

NC

Not Connect

------- Not connected in normal operation

Descriptions of BF4MC-RX pins

Synbol

Name

Type

Details

VDD

Vsupply

Power Power for PD(*)

VDD15

Vdd1.5V

Power Power for Core(*)

GND

Ground

Ground

-------

SD

Signal Detect

Output

H voltage:Detected

L voltage:Undetected

DOUT+

Data Output +

Output

Differential Data Output

DOUT–

Data Output –

Output

EN

Regulator Enable

Input

[Dual supply mode]

Not connected

[Single supply mode]

EN pin must be connect to VDD

Imon

Mirrored photodiode

current monitor

Output Not connected(Inspection pin)

NC

Not Connect

------- Not connected in normal operation

(*): For details, see Hirose's technical specification ETAD-K0671.

Electrical characteristics

Electrical characteristics of BF4MC-TX (transmitter side)

Electrical characteristics of BF4MC-RX (receiver side)

Mi

ｎ

Nominal

Max

Unit

Transmission speed (8B/10B)

0.05

----------

6.25

Gbps

VDD voltage

2.25

2.5/3.3

3.6

V

ACTIVATE = H voltage

1.0

----------

VDD voltage

V

DIN common voltage

150

----------

340

mVp

DIN differential voltage

200

----------

1400

mVp

Mi

ｎ

Nominal

Max

Unit

Remarks

Transmission speed (8B/10B)

0.05

----------

6.25

Gbps

----------

VDD voltage

2.25

2.5/3.3

3.6

V

----------

VDD 15 voltage

1.45

1.5

1.55

V

When driving with dual power sources

DOUT common voltage

160

----------

330

mVp

----------

DOUT differential voltage

160

----------

330

mVp

----------

SD = H voltage

1.0

1.5

1.6

V

----------

Imon

20.0

----------

----------

uA

For internal inspection