4

21737-0283, Rev.A

06-25-03

+

+

1 H coil or

ferrite inductor

µ

1 H coil or

ferrite inductor

µ

TXD+

TXD -

RXD -

RXD+

0.1

0.1

10

10

0.1

160

160

160

160

100

Capacitor values in F, Resistor values in ohm

µ

50 ohm line

LV-PECL

50 ohm line

100

50 ohm line

50 ohm line

LV-PECL

12,16

2,3,6

10

9

15

14

11

7

+

0.1

10

100

TX DISABLE

VPD

+3.3 V

8

13

SIGNAL DETECT

(see Note below)

1

VCC

+3.3 volt

MOUNTING

POSTS

chassis

ground

circuit ground

+

+

1 H coil or

ferrite inductor

µ

1 H coil or

ferrite inductor

µ

TXD+

TXD -

RXD -

RXD+

0.1

0.1

10

10

0.1

160

160

100

Capacitor values in F, Resistor values in ohm

µ

50 ohm line

LV-PECL

50 ohm line

100

50 ohm line

50 ohm line

LV-PECL

12,16

2,3,6

10

9

15

14

11

7

+

0.1

10

100

TX DISABLE

VPD

+3.3 V

8

13

SIGNAL DETECT

(see Note below)

1

VCC

+3.3 volt

MOUNTING

POSTS

chassis

ground

circuit ground

Depending on SERDES

Depending on SERDES

DTR-1250-SM2-LC

DTR-1250-SM2-LC & DTR-1250-SM2-LS

AC coupling

DTR-1250-SM2-LC

1. For AC-coupled modules, please add suffix “AC” to the above Model Names.

For example, the AC-coupled version of DTR-1250-SM-LC-L2 is DTR-1250-SM-LC-L2-AC.

2. For Plastic Package modules, please remove suffix “M” to the above Model Names.

For example, the Plastic Package version of DTR-1250-SM-LC-L2-M is DTR-1250-SM-LC-L2-AC-M

are DTR-1250-SM-LC-L2 and DTR-1250-SM-LC-L2-AC.

3. For Industrial temperature, please add suffix “A” to the above Model Names.

For example, Industrial temperature version of DTR-1250-SM2-LC-L2 and DTR-1250-SM2-LC-L2-AC

are DTR-1250-SM2-LC-A-L2-M and DTR-1250-SM2-LC-A-L2-AC-M

4. The H3 & H7 options with “A” temperature range is only available from -25°C to +85°C.

Model (DC-coupled,

Metal Package)

EMI

Shield

Distance

(notes on p.1 & 3)

DTR-1250-SM2-LS-L2-M

YES

1000Base-LX (5 km)

DTR-1250-SM2-LS-L1-M

DTR-1250-SM2-LS-L0-M

YES

Longer (10 km)

DTR-1250-SM2-LS-H3-M

YES

1300 nm DFB (25 km)

DTR-1250-SM2-LS-H5-M

YES

1550 nm DFB (40 km)

DTR-1250-SM2-LS-H7-M

YES

1550 nm DFB (70 km)

Model (DC-coupled,

Metal Package)

EMI

Shield

Distance

(notes on p.1 & 3)

DTR-1250-SM2-LC-L2-M

NO

1000Base-LX (5 km)

DTR-1250-SM2-LC-L1-M

DTR-1250-SM2-LC-L0-M

NO

Longer (10 km)

DTR-1250-SM2-LC-H3-M

NO

1300 nm DFB (25 km)

DTR-1250-SM2-LC-H5-M

NO

1550 nm DFB (40 km)

DTR-1250-SM2-LC-H7-M

NO

1550 nm DFB (70 km)

Ordering Information

DC coupling

Interface circuit: Three options for

interface circuit are shown here: two

with DC coupling and one with AC

coupling.

The power supply line should be well-

filtered. All 0.1

µF power supply bypass

capacitors should be as close to the

DTR transceiver module as possible.

The two front GND posts (mounting

studs) should be grounded to Chassis

Ground. If Chassis Ground is not

available, they should be connected to

Circuit Ground.