OPLINK DTR-1250-SM-LC

OCP
©
DTR-1250-SM-LC/LS-CWDM
3.3V LC connector SFF Gigabit Ethernet CWDM Laser Transceivers
Features
; Eight wavelengths (8) CWDM transceivers
; Compliant with IEEE 802.3z Gigabit Ethernet
1000BASE-LX PMD specifications
; Eye Safe (Class I Laser Safety)
; Excellent EMI & ESD protection (optional extra
EMI shield also available)
; Multi-sourced 10-pin (2x5) SFF (Small Form
Factor) package style
; Duplex LC optical connector interface
; Single +3.3 V supply & LV-PECL DATA
interface (AC coupling option also available)
; LV-TTL TX DISABLE input & RX SIGNAL
DETECT output
Description
narrow width two-row, 10-pin (2X5) package with a Duplex
LC connector interface. The receptacle fits into an RJ-45
form factor outline. The 10-pin configuration is in
conformance to a Small Form Factor (SFF) multisource
agreement.
The DTR-1250-SM-LC-CWDM and DTR-1250-SM-LSCWDM fiber optic transceivers offer a simple and
convenient way to interface 1000BASE-LX Gigabit
Ethernet boards running at 1.25 Gbaud to single mode fiber
optic cables in Coarse Wavelength Division Multiplexing
(CWDM) applications. There are eight center wavelengths
available 1470 nm, 1490 nm, 1510 nm, 1530 nm, 1550
nm, 1570 nm, 1590 nm, and 1610 nm. Two performance
options are available. In option “H5”, a guaranteed
minimum optical link budget of 17 dB is offered which
can correspond to a link distance of over 35 km or 40 km
(assuming worst case fiber loss of 0.3 and 0.25 dB/km
respectively). In option “H7”, a guaranteed minimum
optical link budget of 20 dB is offered which can correspond
to a link distance of over 70 km (assuming fiber loss of
0.2 to 0.25 dB/km).
All modules satisfy Class I Laser Safety requirements in
accordance with the US FDA/CDRH and international
IEC-825 standards.
The transmitter and receiver DATA interface are
differential direct-coupled LV-PECL. An alternate version
with AC coupling interface is also available. An LV-TTL
Transmitter Disable control input is provided. The receiver
Signal Detect output interface is also LV-TTL.
The transceiver operates from a single +3.3V power supply
over an operating temperature range of 0°C to +70°C. The
module is housed in a metal package for excellent EMI
shielding.
The transmit and receive functions are contained in a
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Maximum
Units
Storage Temperature
Tst
- 40
+ 85
°C
Operating Temperature
Top
0
+ 70
°C
Supply Voltage
VCC
0
+ 5.0
V
Input Voltage
Vin
0
VCC
V
Output Current
IO
-
50
mA
Lead Soldering Temperature & Time
-
-
Optical Communication Products, Inc.
1
260°C, 10 sec
21737-0342, Rev. B
1-28-02
DTR-1250-SM-LC/LS-CWDM
Transmitter Electrical Interface
Parameter
Input HIGH Voltage
1
Input LOW Voltage
1
(over Operating Case Temperature Range)
Symbol
Minimum
Typical
Maximum
Units
VIH
VCC - 1.165
-
VCC - 0.700
V
VIL
VCC - 1.950
-
VCC - 1.475
V
Transmitter Disable Voltage
VDIS
VCC - 1.3
-
VCC
V
Transmitter Enable Voltage
VEN
0
-
0.8
V
1
For AC-coupled modules, the input voltage swing is 0.25 V minimum and 1.2 V maximum single-ended.
Receiver Electrical Interface (over Operating Case Temperature Range)
Parameter
Symbol
Minimum
Typical
Maximum
Units
Output HIGH Voltage (LV-PECL)
1,2
VOH
VCC - 1.10
-
VCC - 0.90
V
Output LOW Voltage (LV-PECL)
1,2
VOL
VCC - 1.84
-
VCC - 1.60
V
IO
-
-
25
mA
Output HIGH Voltage (LV-TTL)
VOH
2.4
-
VCC
Output LOW Voltage (LV-TTL)
VOL
0
-
0.8
Output Current
1
2
With 50 ohm terminated to VCC - 2 volt (for DC-coupled modules).
For AC-coupled modules, the output voltage swing into 50-ohm load is 0.3 V minimum and 1 V maximum single-ended.
Electrical Power Supply Characteristics (over Operating Case Temperature Range)
Parameter
Symbol
Minimum
Typical
Maximum
Units
VCC
3.13
3.3
3.47
V
DC-coupled module
ICC
-
160
230
mA
AC-coupled module
ICC
-
185
255
mA
Supply Voltage
Supply Current 1
1
Supply current does not include termination.
Application Notes
+3.3 volt
DATA interface (DC-coupled modules):
The interface circuit for standard DC-coupled
modules with direct-coupled LV-PECL
interface is shown in Fig. 1. The Transmitter
input has internal 50 ohm termination.
DATA interface (AC-coupled modules):
For modules with AC coupling option, both
transmitter and receiver interface has internal
bias, termination and AC coupling capacitor.
The transmitter can be connected directly to
the driving SERDES as shown in Fig. 2. The
receiver can be connected directly to the
external 50 ohm loads (termination resistor
of the SERDES). For best performance, both
DATA+ & DATA- should be used.
TX DISABLE: The transmitter is normally
enabled (i.e. when the TX DISABLE control
input is not connected or at LV-TTL logic
LOW). When the TX DISABLE voltage is
higher than VCC - 1.3 V, the laser is turned off
independent of the input data.
SIGNAL DETECT: The Signal Detect
circuit monitors the level of the incoming
optical signal and generates a logic LOW
signal when insufficient photocurrent is
produced. Its output is LV-TTL with no
termination required.(Option for LVPECL is
also avalible.)
21737-0342, Rev. B
1-28-02
Capacitor values in µF, Resistor values in ohm
1 µH coil or
ferrite inductor
+
0.1
10
0.1
160
1 µH coil or
6
ferrite inductor
+
10
2
9
100
0.1
TXD+
TXD -
8
TX DISABLE
SIGNAL DETECT
RXD+
RXD -
4
3
GND
POSTS
7
1
LV-PECL
50 ohm line
10
5
160
50 ohm line
160
50 ohm line
50 ohm line
100 LV-PECL
160
Fig.1 DC-coupled modules
+3.3 volt
Capacitor values in µF, Resistor values in ohm
1 µH coil or
ferrite inductor
depending on SERDES
+
0.1
10
0.1
160
1 µH coil or
6
ferrite inductor
+
10
2
9
100
0.1
TXD+
TXD -
10
RXD+
TX DISABLE
SIGNAL DETECT
8
5
3
4
50 ohm line
GND
POSTS
1
SERDES
50 ohm line
RXD - 50 ohm line
7
160
50 ohm line
100
depending on SERDES
Fig.2 AC-coupled modules
2
DTR-1250-SM-LC/LS-CWDM
Transmitter Performance Characteristics (over Operating Case Temperature, VCC = 3.13
Parameter
Symbol
B
Data Rate
H5
Optical Output Power 1
1470
1490
1510
1530
1550
1570
1590
1610
Center Wavelength
Spectral Width (-20 dB)
Extinction Ratio
Deterministic Jitter
Random Jitter
Relative Intensity Noise
Transmitter Output Eye
1
Po
H7
λc
to 3.47 V)
Minimum
Typical
Maximum
Units
50
- 4.0
1250
- 2.0
1300
Mb/s
-3.0
- 1.0
2.0
1464
1484
1504
1524
1544
1564
1584
1604
1470
1490
1510
1530
1550
1570
1590
1610
1477.5
1497.5
1517.5
1537.5
1557.5
1577.5
1597.5
1617.5
1.0
dBm
nm
∆λ20
H5, H7
1.0
nm
9
dB
80
ps
147
ps
- 120
dB/Hz
compliant with Eye Mask Defined in IEEE 802.3z standard
Phi / Plo
DJ
RJ
RIN
Measured average power coupled into single mode fiber (SMF).
Receiver Performance Characteristics (over Operating CaseTemperature, VCC = 3.13
Parameter
Symbol
Minimum
Typical
Maximum
Units
B
125
1250
1300
Mb/s
Pmin
- 21.0
- 23.0
-
-
dBm
Pmax
- 3.0
-
-
dBm
Data Rate
Minimum Input Optical Power
(10-12 BER) 1
H5
H7
Maximum Input Optical Power (10-12 BER) 1
Increasing
Light Input
Signal Detect
Thresholds
to 3.47 V)
H5
Psd+
H7
-
-
- 21.0
dBm
-
-
- 23.0
dBm
Psd-
- 30.0
-
-
dBm
-
0.5
-
-
dB
Deterministic Jitter
DJ
-
-
170
ps
Random Jitter
RJ
-
-
96
ps
Wavelength of Operation
λ
1100
-
1620
nm
Optical Return Loss
-
12
-
-
dB
Electrical 3 dB upper cutoff frequency
-
-
-
1500
MHz
Decreasing Light Input
Signal Detect Hysteresis
Stressed Receiver Sensitivity
1
compliant with IEEE 802.3z standard
7
Measured with 2 -1 PRBS at 1250 Mb/s.
Power supply and grounding: 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 for best EMI and ESD
protection. If Chassis Ground is not available, they should
be tied to Circuit Ground.
Laser Safety: All transmitters are Class I Laser products per
FDA/CDRH and IEC-825 standards. They must be operated
under specified operating conditions.
Optical Communication Products, Inc.
DATE OF MANUFACTURE:
MANUFACTURED IN THE USA
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
3
21737-0342, Rev. B
1-28-02
DTR-1250-SM-LC/LS-CWDM
Package without
EMI shield (LC)
Pin Assignments
PIN
FUNCTION
1
RX GND
2
VCCRX
3
SD (RX SIGNAL DETECT)
4
RD- (RX DATA OUT -)
10
5
RD+ (RX DATA OUT +)
1
6
VCCTX
7
TX GND
8
TX DISABLE
9
TD+ (TX DATA IN +)
10
TD- (TX DATA IN -)
Dimension in inches
[mm]
*x, *y: see Pin length option table in ordering information
Package with
EMI Shield (LS)
48.44
1.907
10.54
.415
13.56
.534
6.25
.246
4.1
.16
9.65
.380
9.78MAX
.385MAX
0.38
.015
*y
18.54
.730
*X
0.46
2X
11
.43
1.02
.040
2.54
2X
10
.100
13.41
.528
10.16
.400
14.8
.58
1
0.76
.030
1.91
.075
1.78
.070
17.78
.700
*x, *y: see Pin length option table in ordering information
21737-0342, Rev. B
1-28-02
4
Dimension in inches
[mm]
DTR-1250-SM-LC/LS-CWDM
Ordering Information
DTR-1250-SM-WW-Xn-Czzz-YY-Mp
Package Types
LC: Package without Shield
LS: Package With Shield
Light Output Power
H5: -2dBm (typ.)
H7: -1dBm (typ.)
Pin Length option table
Options
(P)
Pin Length (x)
Inches
Millimeters
Post Length (y)
Inches
Millimeters
M
0.140 + 0.010
3.56 + 0.250
0.125 + 0.010
- 0.005
3.17 + 0.250
- 0.125
M5
0.155 + 0.010
3.94 + 0.250
0.155 + 0.010
- 0.005
3.94 + 0.250
- 0.125
M8
0.180 + 0.010
4.57 + 0.250
0.180 + 0.010
4.57 + 0.250
Center Wavelength
C470:
C490:
C510:
C530:
C550:
C570:
C590:
C610:
1470 nm
1490 nm
1510 nm
1530 nm
1550 nm
1570 nm
1590 nm
1610 nm
see Pin Length
option table
Coupling option
“Blank”: DC coupling
AC : AC coupling
Optical Communication Products, Inc.
20961 Knapp Street, Chatsworth, CA 91311, Tel.: 818-701-0164, FAX: 818-701-1468, http://www.ocp-inc.com
Optical Communication Products, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Optical Communication
Products, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Optical Communication Products, Inc. for its use nor for any infringements of
third parties which may result from its use. No license is granted by implication or otherwise under any patent right of Optical Communication Products, Inc.
5
21737-0342, Rev. B
1-28-02