Optoway
FEATURES
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TRS-7285-CXX0G
1
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TRS-7285-CXX0G / TRS-7285T-CXX0G / TRS-7285F-CXX0G
CWDM 5V / 1.25 Gbps
RoHS Compliant
Optical Single-Mode Transceiver
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DESCRIPTION
Duplex SC SM Transceiver: TRS-7285-CXX0G
Duplex ST SM Transceiver: TRS-7285T-CXX0G
Duplex FC SM Transceiver: TRS-7285F-CXX0G
Compliant with IEEE-802.3z Gigabit Ethernet
18-Wavelength
CWDM DFB LD Transmitter from
1270 nm to 1610 nm, with step 20 nm
27 dB Link Budget at Least
Industry Standard 1 x 9 Footprint
Single +3.3 V Power Supply
RoHS Compliant
LVPECL Signal Detect Output: TRS-7285-CXX0G
LVTTL Signal Detect Output: TRS-7285C-CXX0G
Wave Solderable and Aqueous Washable
Class 1 Laser International Safety Standard IEC 60825
Compliant
The TRS-7285-CXX0G series single mode transceivers is
low power, high performance CWDM modules for
bi-directional serial optical data communications such as
Gigabit Ethernet and Fibre Channel. There are eighteen
center wavelengths available from 1270 nm to 1610 nm,
each step 20 nm. A guaranteed minimum optical link
budget of 27 dB is offered. The transmitter section uses a
multiple quantum well DFB laser and is a class 1 laser
compliant according to International Safety Standard IEC
60825. The receiver section uses an integrated InGaAs
detector preamplifier (IDP) mounted in an optical header
and a limiting post-amplifier IC. A PECL logic interface
simplifies interface to external circuitry.
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.
APPLICATIONS
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Gigabit Ethernet Links
SONET/SDH Equipment Interconnect
Fibre Channel Links
CWDM
ORDER INFORMATION
P/No.
Bit Rate
(Mb/s)
1250
1000
BASE
ZX
Power Wavelength Voltage
Package
Budget
(nm)
(V)
(dB)
> 27
CWDM*
5
1X9 SC/ST/FC
Temp.
(
o
C)
0 to 70
TX
Power
(dBm)
5 to 0
RX Sens. RoHS
(dBm)
Compliant
-27
Y
TRS-7285-CXX0G
CWDM Wavelength (0 to 70
o
C)
Central
Min.
Typ.
Max.
Central
Wavelength
(nm)
(nm)
(nm)
Wavelength
-C270
1264.5
1270
1277.5
-C450
-C290
1284.5
1290
1297.5
-C470
-C310
1304.5
1310
1317.5
-C490
-C330
1324.5
1330
1337.5
-C510
-C350
1344.5
1350
1357.5
-C530
-C370
1364.5
1370
1377.5
-C550
-C390
1384.5
1390
1397.5
-C570
-C410
1404.5
1410
1417.5
-C590
-C430
1424.5
1430
1437.5
-C610
CWDM*: 18 Wavelengths from 1270 nm to 1610 nm, each step 20 nm.
Min.
(nm)
1444.5
1464.5
1484.5
1504.5
1524.5
1544.5
1564.5
1584.5
1604.5
Typ.
(nm)
1450
1470
1490
1510
1530
1550
1570
1590
1610
Max.
(nm)
1457.5
1477.5
1497.5
1517.5
1537.5
1557.5
1577.5
1597.5
1617.5
***********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
11/20/2007 V1.0
Optoway
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Temperature
Soldering Temperature
Power Supply Voltage
Input Voltage
Output Current
Symbol
Tstg
Topr
---
Vcc
---
Iout
Min
-40
0
0
GND
0
Max
85
70
260
5.5
Vcc
30
Units
o
C
o
C
o
C
V
V
mA
TRS-7285-CXX0G
Notes
With air flow 1m/sec
10 seconds on leads only
2
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Recommended Operating Conditions
Parameter
Power Supply Voltage
Operating Temperature
Data Rate
Power Supply Current
Symbol
Vcc
Topr
Icc
Min
4.75
0
Typ
5
1250
200
Max
5.25
70
1300
280
Units
V
o
C/ air flow 1m/sec
Mb/s
mA
Transmitter Specifications (0
o
C < Topr < 70
o
C, 4.75V < Vcc < 5.25V)
Parameter
Optical
Optical Transmit Power
Output Center Wavelength
Output Spectrum Width
Side Mode Suppression Ratio
Extinction Ratio
Output Eye
Optical Rise Time
Optical Fall Time
Relative Intensity Noise
Total Jitter
Electrical
Data Input Current
–
Low
Data Input Current
–
High
Differential Input Voltage
Data Input Voltage
–
Low
Data Input Voltage -- High
Symbol
Min
Typ
Max
Units
Notes
Po
0
---
5
dBm
1
λ-5.5
λ+7.5
nm
2
λ
λ
---
---
1
nm
-20 dB Width
∆λ
SMSR
30
dB
E
R
9
---
---
dB
Compliant with Bellcore TR-NWT-000253 and ITU recommendation G.957
t
r
0.26
ns
20% to 80% Values
t
f
0.26
ns
20% to 80% Values
RIN
-120
dB/Hz
TJ
0.227
ns
3
I
IL
I
IH
V
IH
- V
IL
V
IL
- V
CC
V
IH
- V
CC
-350
350
300
-2.0
-1.1
-1.58
-0.74
µA
µA
mV
V
V
4
4
Notes: 1. Output power is power coupled into a 9/125
µm
single mode fiber.
2. ITU-T G.694.2 CWDM wavelength from 1270 nm to 1610 nm, each step 20 nm.
3. Measured with a 2
7
-1 PRBS.
4. These inputs are compatible with 10K, 10KH and 100K ECL and LVPECL inputs.
**********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
11/20/2007 V1.0
Optoway
Receiver Specifications (0
o
C < Topr < 70
o
C, 4.75 V < Vcc < 5.25V)
Parameter
Optical
Sensitivity
Maximum Input Power
Signal Detect -- Asserted
Signal Detect -- Deasserted
Signal detect -- Hysteresis
Wavelength of Operation
Electrical
Data Output Voltage
–
Low
Data Output Voltage
–
High
Signal Detect Output Voltage -- Low
Signal Detect Output Voltage -- High
Signal Detect Output Voltage -- Low
Signal Detect Output Voltage -- High
Symbol
---
Pin
Pa
Pd
Min
---
-3
---
-36
1.0
1100
-2.0
-1.1
-2.0
-1.1
2.0
Typ
---
---
---
---
---
---
Max
-27
---
-27
---
1620
-1.58
-0.74
-1.58
-0.74
0.8
Units
dBm
dBm
dBm
dBm
dB
nm
V
V
V
V
V
V
TRS-7285-CXX0G
Notes
1
Transition: low to high
Transition: high to low
3
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V
OL
- V
CC
V
OH
- V
CC
V
OL
- V
CC
V
OH
- V
CC
V
SDL
V
SDH
2
2
TRS-7285-CXX0G
TRS-7285C-CXX0G
Notes: 1. Minimum sensitivity and saturation levels at BER=1E-12 for a 2
7
-1 PRBS at ER= 9dB.
2. These outputs are compatible with 10K, 10KH and 100K ECL and PECL outputs.
CONNECTION DIAGRAM
Receiver Signal Ground 1 (Rx GND)
Receiver Data Out 2 (RD+)
Receiver Data Out Bar 3 (RD−)
Signal Detect 4 (SD)
Receiver Power Supply 5 (Rx Vcc)
Transmitter Power Supply 6 (Tx Vcc)
Transmitter Data In Bar 7 (TD−)
Transmitter Data In 8 (TD+)
Transmitter Signal Ground 9 (Tx GND)
N/C
TOP VIEW
N/C
PIN
1
2
3
4
5
6
7
8
9
Symbol
Rx GND
RD+
RD−
SD
Rx Vcc
Tx Vcc
TD−
TD+
Tx GND
Notes
Directly connect this pin to the receiver ground plane
See recommended circuit schematic
See recommended circuit schematic
Active high on this indicates a received optical signal
+5V dc power for the receiver section
+5V dc power for the transmitter section
See recommended circuit schematic
See recommended circuit schematic
Directly connect this plan to the transmitter ground plane
**********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
11/20/2007 V1.0
Optoway
RECOMMENDED CIRCUIT SCHEMATIC
Transceiver
T GD
X N
0.1uF
LD
D
river
100R
0.1uF
6
10nF
5
10nF
SD
R-
D
R+
D
4
3
Z=50R
2
Z=50R
R GD
X N
1
R4
R6
R+
D
10uF
R2
VC 5V
C
R3
P
OST
Am
p
R5
R-
D
10uF
1uH
VC 5V
C
VC 5V
C
1uH
R1
R VC
X C
SDLevel
TD
+
TD
-
9
8
Z=50R
7
Z=50R
T-
D
T+
D
TRS-7285-CXX0G
SerDes IC
VC 5V
C
4
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PC
EL
TX VC
C
VC 5V
C
PC
EL
CDR or PHY DEVICE
For TTL SD Level R1=R2=N.C. ,R3=R5=82R ,R4=R6=130R
For PECL SD Level R1=R3=R5=82R ,R2=R4=R6=130R
The split-load terminations for ECL signals need to be located at the input of devices receiving those ECL signals. The
power supply filtering is required for good EMI performance. Use short tracks from the inductor L1/L2 to the module Rx
Vcc and Tx Vcc. A GND plane under the module is required for good EMI and sensitivity performance.
PACKAGE DIAGRAM
Units in mm
1) SC Type with Extended Shielding
TX OPTIC AL
RX OPTIC AL
TRS-7285-CXX0-EMG / TRS-7285C-CXX0-EMG
**********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
11/20/2007 V1.0
Optoway
2) ST Type
TX OPTIC AL
TRS-7285-CXX0G
5
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RX OPTIC AL
TRS-7285T-CXX0G / TRS-7285CT-CXX0G
3) FC Type
12.7
TX OPTICAL
RX OPTICAL
2.54*8
20.32
25.4
13.9
10
5.97
10.18
20.32
34.5MAX
TRS-7285F-CXX0G / TRS-7285CF-CXX0G
Note:
Specifications subject to change without notice.
**********************************************************************************************************************************************************************
OPTOWAY TECHNOLOGY INC.
No.38, Kuang Fu S. Road, Hu Kou, Hsin Chu Industrial Park, Hsin Chu, Taiwan 303
Tel: 886-3-5979798
Fax: 886-3-5979737
E-mail: sales@optoway.com.tw http: // www.optoway.com.tw
11/20/2007 V1.0
0.75
O1.3
13.7
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