Optoway

BTRS-7720CG

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Tel: 886-3-5979798

Fax: 886-3-5979737

E-mail: sales@optoway.com.tw

http: // www.optoway.com.tw

10/1/2005 V2.0

1

BTRS-7720CG / BTRS-7720ACG

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FEATURES

l Single Fiber Bi-Directional Transceiver

l 1550 nm DFB LD Transmitter

l 1310 nm Receiver

l 14 dB Link Power Budget At Least

l Distance Up to 20 km

l Single +3.3 V Power Supply

l RoHS Compliant

l Speed up to 1300 Mbps

l LVTTL Signal Detect Output

l PECL Differential Inputs and Outputs

l Wave Solderable and Aqueous Washable

l Class 1 Laser International Safety Standard IEC-60825

Compliant

APPLICATIONS

l WDM Gigabit Ethernet Links

l SONET/SDH Equipment Interconnect

l Fibre Channel Links

DESCRIPTION

The BTRS-7720CG series is high performance module for

single fiber communications by using 1550 nm transmitter

and 1310 nm receiver. The transmitter section uses a

multiple quantum well 1550 nm DFB laser and is a class 1

laser compliant according to International Safety Standard

IEC-60825. The receiver section uses an integrated 1310

nm detector preamplifier (IDP) mounted in an optical

header and a limiting post-amplifier IC. A PECL logic

interface simplifies interface to external circuitry. LV-TTL

Signal Detect is used.

LASER SAFETY

This single mode transceiver is a Class 1 laser product. It

complies with IEC-60825 and FDA 21 CFR 1040.10 and

1040.11.

The transceiver must be operated within the

specified temperature and voltage limits. The optical ports

of the module shall be terminated with an optical connector

or with a dust plug.

ORDER INFORMATION

P/No.

Bit Rate

(Gb/s)

Distance

(km)

TX

(nm)

RX

(nm)

Voltage

(V)

Package

Temp

(

TX

Power

(dBm)

RX Sens.

(dBm)

RoHS

Compliant

BTRS-7720CG

1.25

20

1550 DFB

1310

3.3

SC, 2X5

0 to 70

-3 to -8

-22

Yes

BTRS-7720ACG

1.25

20

1550 DFB

1310

3.3

SC, 2X5

-20 to 85

-3 to -8

-22

Yes

Note: 1. BTRS-XXXXXG is SFF SC receptacle type package.

2. BTRS-XXXXX-APBBBG is SFF pigtail type package with different connector, A=S is SC connector, A=F is FC

connector, A=T is ST connector, A=L is LC connector, A=M is MU connector; BBB is the length of fiber in cm.

Absolute Maximum Ratings

Parameter

Symbol

Min

Max

Units

Notes

Storage Temperature

Tstg

-40

85

Operating Temperature

Topr

0

-20

70

85

BTRS-7720CG/ air flow 1m/sec

BTRS-7720ACG/air flow 1m/sec

Soldering Temperature

---

260

10 seconds on leads only

Power Supply Voltage

Vcc

0

3.6

V

Input Voltage

---

GND

Vcc

V

Output Current

Iout

0

30

mA

Recommended Operating Conditions

Parameter

Symbol

Min

Typ

Max

Units / Notes

Power Supply Voltage

Vcc

3.13

3.3

3.47

V

Operating Temperature

Topr

0

-20

70

85

Data Rate

1250

1300

Mb/s

Power Supply Current

Icc

280

mA