DTR1250SMGB-I datasheet(3/5 Pages) OPLINK

Part #	DTR1250SMGB-I

Description	5V GBIC Long Distance Single Mode Transceivers

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Manufacturer	OPLINK [OPLINK Communications Inc.]

Direct Link	http://www.oplink.com

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3 / 5 page

3

21737-0390, Rev. B

10-16-2003

Transmitter Electrical Interface (over Operating Case Temperature, V

CC = 4.75 to 5.25V)

Electrical Power Supply Characteristics (over Operating Case Temperature, V

CC = 4.75 to 5.25V)

DTR-1250-SM-GB-I

Parameter

Symbol

Minimum

Typical

Maximum

Units

Input Voltage Swing (+TX_DAT & -TX_DAT)1

VPP-DIF

0.65

-

2.0

V

Input HIGH Voltage (TX_DISABLE)2

VIH

2.0

-

VDD + 0.3

V

Input LOW Voltage (TX_DISABLE)2

VIL

0-

0.8

V

Output HIGH Voltage (TX_FAULT)3

VOH

VCC - 0.5

-

VCC + 0.3

V

Output LOW Voltage (TX_FAULT)3

VOL

0-

0.5

V

1Differential peak-to-peak voltage.

2There is an internal 5.1kΩ pull-up resistor to VDDT.

3Open collector compatible, 4.7 to 10kΩ pull-up resistor to VCC (Host Supply Voltage).

Receiver Electrical Interface (over Operating Case Temperature, V

CC = 4.75 to 5.25V)

Module Definition

Parameter

Symbol

Minimum

Typical

Maximum

Units

Output Voltage Swing (+RX_DAT & -RX_DAT)1

VPP-DIF

0.60

-

2.0

Vp-p

Output HIGH Voltage (RX_LOS)

2

VOH

VCC - 0.5

-

VCC + 0.3

V

Output LOW Voltage (RX_LOS)

2

VOL

0-

0.5

V

1Differential peak-to-peak voltage.

2Open collector compatible, 4.7 to 10kΩ pull-up resistor to VCC (Host Supply Voltage).

Module

Definition

MOD_DEF(0)

pin 4

MOD_DEF(1)

pin 5

MOD_DEF(2)

pin 6

Interpretation by Host

4

TTL LOW

SCL

SDA

Serial module definition protocol

Pin Assignments

FUNCTION

1

RX_LOS (RX LOSS OF SIGNAL)

11

RGND (RX GROUND)

2

RGND (RX GROUND)

12

-RX_DAT (RX DATA OUT -)

3

RGND (RX GROUND)

13

+RX_DAT (RX DATA OUT +)

4

MOD_DEF(0)

14

RGND (RX GROUND)

5

MOD_DEF(1)

15

VDDR (RX SUPPLY VOLTAGE)

6

MOD_DEF(2)

16

VDDT (TX SUPPLY VOLTAGE)

7

TX_DISABLE

17

TGND (TX GROUND)

8

TGND (TX GROUND)

18

+TX_DAT (TX DATA IN +)

9

TGND (TX GROUND)

19

-TX_DAT (TX DATA IN -)

10

TX_FAULT

20

TGND (TX GROUND)

Parameter

Symbol

Minimum

Typical

Maximum

Units

Supply Voltage

VDD

4.75

5.0

5.25

V

Supply Current

IDD

-

200

270

mA

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