OPLINK DTR-2488-SM2-LS-W-G-CWDM Sff single mode cwdm transceiver Datasheet

OCP
DTR-2488-SM2-LC/LS-W-G-CWDM
OC-48/STM-16 2x10 SFF Single Mode CWDM Transceivers
Features
; Eight (8) Wavelength CWDM Transceivers
; Compliant with SONET/SDH OC-48/STM-16
IR-2/S-16.2 & LR-2/L-16.2 Specifications
; Eye Safe (Class I Laser Safety)
; Multi-sourced 2x10 Package Style
; Duplex LC Optical Interface
; Differential Bias Monitor Voltage & Back Facet
Monitor Voltage Outputs
; Receiver Power Monitor Output
; AC Coupling or DC Coupling Option to LV-PECL
DATA Compatible Interface
; LV-TTL SIGNAL DETECT Output
; Single +3.3V Power Supply
Description
The DTR-2488-SM2-LC/LS-W-G-CWDM SFF series of fiber
optic transceivers provide a quick and reliable interface for
intermediate reach (IR-2) and long reach (LR-2) applications.
Products under this series are compliant with SONET/SDH
OC-48/STM-16 (2.488Gb/s) standards for IR-2/S-16.2
intermediate reach and LR-2/L-16.2 long reach applications
,and are available in eight (8) wavelengths: 1470nm, 1490nm,
1510nm, 1530nm, 1550nm, 1570nm, 1590nm and 1610nm. Two
performance options are available. In option L0, a guaranteed
minimum optical power of -5dBm is offered with a PIN receiver
that corresponds to a link distance of 15km (assuming fiber loss
of 0.25dB/km). In option HP, a guaranteed minimum optical
power of -2dBm is offered with an APD receiver that corresponds
to a link distance of 80km (assuming fiber loss of 0.25dB/km). All
modules satisfy Class I Laser Safety requirements in accordance
with the U.S. FDA/CDRH and international IEC-60825 standards.
width two-row, 20-pin (2x10) package with a duplex LC optical
interface. The receptacle fits into an RJ-45 form factor outline.
The 20-pin configuration is in conformance to the SFF MSA.
The transmitter design incorporates all the necessary control
and driver circuitry for converting differential data to light.
The receiver uses an InGaAs/InP PIN photodiode for IR-2
applications and an APD photodiode for LR-2 applications to
covert the light signal into an electrical current which is
amplified and regenerated into differential data outputs. ACcoupled transmit and receive DATA interface is recommended
for compatibility with LV-PECL signal levels. An option for
DC-coupled interface is also available. LV-TTL SIGNAL
DETECT function which indicates loss of optical input is
also provided.
The transceivers operate from a single +3.3V power supply
over an operating case temperature range of -5°C to +70°C.
The package is made of metal for excellent EMI immunity.
The transmit and receive functions are contained in a narrow
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
Maximum Input Optical Power (LR-2 only, 60 seconds max.)
Symbol
Minimum
Maximum
Units
Tst
- 40
+ 85
°C
Top
-5
+ 70
°C
Pin, max
-
+ 3.0
dBm
Supply Voltage
VCC
0
+ 5.0
V
Input Voltage
Vin
0
VCC
V
Output Current
IO
-
50
mA
Lead Soldering Temperature & Time
-
-
260°C, 10 seconds
Optical Communication Products, Inc.
1
21737-0266, Rev. D
07-06-2005
DTR-2488-SM2-LC/LS-W-G-CWDM
Transmitter Performance Characteristics (over Operating Case Temperature Range, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate
Symbol
Minimum
Typical
Maximum
Units
B
-
2.488
-
Gb/s
- 5.0
- 2.0
0
- 2.0
0
+ 3.0
1
Average Optical Output Power
(coupled into single mode fiber)
50% duty cycle
Extinction Ratio
L0
Po
HP
Phi /Plo
8.2
-
-
1470
1464
1470
1477.5
1490
1484
1490
1497.5
1510
1504
1510
1517.5
1524
1530
1537.5
1544
1550
1557.5
1570
1564
1570
1577.5
1590
1584
1590
1597.5
1530
Center Wavelength
λc
1550
1610
Spectral Width (-20dB)
Side Mode Suppression Ratio
IR-2
Dispersion Penalty
dB
nm
1604
1610
1617.5
∆λ20
-
-
1.0
nm
SMSR
30
-
-
dB
-
-
1.0
-
-
2.0
-
LR-22
dBm
dB
Optical Output Eye
Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957
Data rate ranges from 155Mb/s to 2.7Gb/s. However, some degradation may be incurred in overall performance.
2
Specified at 1600ps/nm dispersion, which corresponds to the approximate worse-case dispersion for 80km G.652/G.654 fiber over the
wavelength range of 1464 -1617.5nm.
1
Receiver Performance Characteristics
(over Operating Case Temperature Range, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Symbol
Minimum
Typical
Maximum
Units
B
-
2.488
-
Gb/s
1
Operating Data Rate
Receiver Sensitivity (10-10 BER)2
Maximum Input Optical Power
(10-10 BER)2
SIGNAL DETECT
Thresholds
IR-2
LR-2
IR-2
Pmin
LR-2
IR-2
Increasing Light input
-
-
- 29.0
- 31.0
-
0
+ 1.0
-
- 8.0
-
-
Psd+
-
-
- 19.0
Pmax
LR-2
- 19.0
Decreasing Light Input
Psd-
- 42.0
-
-
Increasing Light input
Psd+
-
-
- 29.0
Decreasing Light Input
dBm
dBm
dBm
Psd-
- 42.0
-
-
SIGNAL DETECT Timing
-
3.0
-
100
µs
SIGNAL DETECT Hysteresis
λ
0.5
1.0
-
dB
1260
-
1620
nm
Wavelength of Operation
Jitter Tolerance & Transfer Function
Compliant with ITU Recommendation G.958
1
Data rate ranges from 155Mb/s to 2.7Gb/s. However, some degradation may be incurred in overall performance.
Specified in average input optical power and measured at 2.488Gb/s and 1550nm with 223-1 PRBS.
2
Laser Safety: All transmitters are Class I Laser products
per FDA/CDRH and IEC-60825 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
2
21737-0266, Rev. D
07-06-2005
DTR-2488-SM2-LC/LS-W-G-CWDM
Transmitter Electrical Interface (over Operating Case Temperature Range, VCC = 3.13 to 3.47V)
Parameter
Symbol
Minimum
Typical
Maximum
Units
VINDIF
0.30
0.80
1.60
VP-P
Input Impedance
ZIL
-
50
-
Ω
Transmitter Disable Voltage
VDIS
VCC - 1.3
-
VCC
V
Transmitter Enable Voltage
VEN
0
-
0.8
V
Differential Bias Monitor Voltage (Ta = 25°C)
VBM+ - VBM-
0.10
-
0.70
V
Differential Back Facet Monitor Voltage
VFM+ - VFM-
-
30
-
mV
Input Voltage Swing between DATA+ & DATA-
Receiver Electrical Interface (over Operating Case Temperature Range, VCC = 3.13 to 3.47V)
Parameter
Output Voltage Swing
1,2
Output Current
Output HIGH Voltage (LV-TTL)
Output LOW Voltage (LV-TTL)
3
Receiver Power Monitor Current
Symbol
Minimum
Typical
Maximum
Units
Vp-p
0.3
-
0.8
V
IO
-
-
25
mA
VOH
2.0
-
VCC
V
VOL
0
-
0.4
V
1.3
µΑ/µW
0.6
IRPM
0.85
1
Single ended into 50Ω load.
2
DC-coupled version is also available (50Ω to VCC - 2V termination) with output HIGH voltage level of VCC - 1.10V min. and VCC - 0.90V max.
The output LOW voltage (LV-PECL) is VCC - 1.84V min. and VCC - 1.60V max.
3
Power input, RPM is specified from -29dBm to -17dBm for APD and 0dBm to -19dBm for PIN.
Electrical Power Supply Characteristics (over Operating Case Temperature Range, VCC = 3.13 to 3.47V)
Parameter
Supply Voltage
1
Supply Current
Symbol
Minimum
Typical
Maximum
Units
VCC
3.13
3.3
3.47
V
ICC
-
195
310
mA
1
Supply current does not include termination resistor current for DC-coupled version.
Pin Assignments
PIN
FUNCTION
PIN
1
RPM (Reciever Power Monitor)
11 VCCTX
2
RX GND
12
TX GND
3
RX GND
13
TX DISABLE
Laser Bias & Laser Back Facet Monitor Circuits
FUNCTION
VCC
VCC
LD
PD
Ib
4
N/C
14
TD+ (TX DATA IN+)
5
N/C
15
TD- (TX DATA IN-)
BM+
3kΩ
10Ω
RX GND
16
TX GND
7
VCCRX
17
BM- (BIAS MONITOR-)
8
SD (RX SIGNAL DETECT)
18
BM+ (BIAS MONITOR +)
9
RD- ( RX DATA OUT-)
19
FM- (FACET MONITOR-)
20
FM+ (FACET MONITOR+)
LD Bias
Monitor Circuit
3
3kΩ
BM-
FMControl
Circuit
Bias
Circuit
GND
10 RD+ ( RX DATA OUT+)
FM+
200Ω
3kΩ
6
3kΩ
Imon
GND
LD Back Facet
Monitor Circuit
21737-0266, Rev. D
07-06-2005
DTR-2488-SM2-LC/LS-W-G-CWDM
Fig.1 DC-coupled modules
Receiver Power Monitor option 1
Vcc
+3.3V
Capacitor values in µ F, Resistor values in Ω
1µH coil or
ferrite inductor
Vcc
+
0.1
10
0.1
160
DTR-2488
External resistor
1µH coil or
1
+ ferrite inductor
10
7
14 TD+
11
0.1
100
8
DTR-2488-SM2
RPM
(see Power Monitor Options)
806Ω
9
100 LV-PECL
50Ω line
RD-
GND
2,3,6 POSTS 12,16
Recommended external current
monitor resistor value is 1kΩ
50Ω line
10 RD+
1
LV-PECL
50Ω line
15 TD-
SIGNAL DETECT
160
50Ω line
160
160
chassis
ground
Fig.2 AC-coupled modules
Receiver Power Monitor option 2
Vcc
+3.3V
Vcc
Capacitor values in µF, Resistor values in Ω
1µH coil or
ferrite inductor
+
0.1
DTR-2488
depends on SERDES
10
0.1
160
R1
R1
1µH coil or
2N3906 or
equivalent
1
AD8551 or
equivalent
RPM
R2
806Ω
+ ferrite inductor
10
7
14 TD+
11
0.1
100
15 TD-
SIGNAL DETECT
8 DTR-2488-SM2
1
RPM
(see Power Monitor Options)
10 RD+
9
GND
2,3,6 POSTS 12,16
R1: 510Ω
R2: 2kΩ recommended
RD-
160
50Ω line
50Ω line
SERDES
50Ω line
50Ω line
100
depends on SERDES
chassis
ground
Application Notes
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 50Ω termination.
SIGNAL DETECT: The SIGNAL DETECT circuit monitors
the incoming optical signal level and generates a logic LOW
signal when an insufficient photocurrent is produced. The output
is LV-TTL with no termination required.
DATA interface (AC-coupled modules): For modules with
AC coupling option, both transmitter and receiver interfaces
have internal bias, 50Ω termination and AC coupling capacitors.
The transmitter can be connected directly to the driving
SERDES as shown in Fig. 2. The receiver can be connected
directly to the external 50Ω loads (termination resistor of the
SERDES). For best performance, both DATA+ & DATAshould be used.
TX DISABLE: The transmitter is normally enabled (i.e. when
the TX DISABLE control input is not connected). When the
TX DISABLE control input voltage is higher than VCC - 1.3V,
the laser is turned off independent of the input data.
Power supply and grounding: The power supply line should
be well-filtered. All 0.1µF power supply bypass capacitors
should be as close to the DTR transceiver module as possible.
The module case ground is internally AC-coupled to the circuit
ground.
4
21737-0266, Rev. D
07-06-2005
DTR-2488-SM2-LC/LS-W-G-CWDM
48.39
1.905
Package without
EMI Shield (LC)
10.49
.413
RX
[13.56 MAX]
13.11
.516
.535 MAX
TX
6.25
.246
9.35
.37
[9.78 MAX]
.385 MAX
0.38
.015 TYP
(X)*
(Y)*
0.25
2x .010
1.02
2X .040
PIN 11
2X
2.54
.100
10.16
.400
1.91
2X .075
*(x) & (y): See Pin Length
Option Table in Ordering
Information
PIN 1
PIN 10
8.89
.350
1.78
.070 TYP
[0.46]
.018
Package with
EMI Shield (LS)
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
18.54
.730
48.39
1.905
10.49
.413
RX
[13.56 MAX]
.535 MAX
TX
3.5
.14
[9.78 MAX]
.385 MAX
9.65
.38
0.38
.015 TYP
PIN 11
2X
2.54
2X .100
1.02
.040
[13.59 +0/-0.254]
.535 +0/-.01
10.16
.400
1.91
2X .075
[11]
.43
(Y)*
(X)*
0.25
2X .010
6.25
.246
PIN 10
[0.46]
0.18
PIN 1
1.78
.070 TYP
8.89
.350
18.54
.730
5
15.6
.62
*(x) & (y): See Pin Length
Option Table in Ordering
Information
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
21737-0266, Rev. D
07-06-2005
DTR-2488-SM2-LC/LS-W-G-CWDM
Package with Extended
EMI Shield (S1)
48.39
1.905
15.11
.60
RX
[13.56 MAX]
.535 MAX
TX
14.09
.555
15.01
.59
6.25
.246
3.6
.14
9.65
.38
[9.78 MAX]
.385 MAX
11.9
.47
0.38
.015 TYP
(X)*
(Y)*
PIN 11
2X
1.02
.040
2X
[13.59 +0/-0.254]
.535 +0/-.01
10.16
.400
1.91
.075
2.54
.100
15.6
.62
PIN 1
PIN 10
[0.46]
0.18 TYP
8.89
.350
1.78
.070 TYP
*(x) & (y): See Pin Length
Option Table in Ordering
Information
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
18.54
.730
Ordering Information
DTR - 2488 - SM2 - Lx - Ln - DR - XX - Wp - G - Cxxx - S1
Connector
LC : w/o EMI Shield
LS : w/ EMI Shield
or w/ Extended S1 Shield
Extended Shield
“Blank” : None
“S1” : Extended
EMI Shield
Light Output Option
L0 : -5 to 0dBm (IR-2)
HP : -2 to +3dBm (LR-2)
Center Wavelength
C470: 1470nm
C490: 1490nm
C510: 1510nm
C530: 1530nm
C550: 1550nm
C570: 1570nm
C590: 1590nm
C610: 1610nm
Distance Option (see Note)
IR2 : IR-2/S-16.2 (42/15km)
LR2 : LR-2/L-16.2 (80km)
Pin Length Option Table
Options
(p)
Pin Length (x)
Inches
Post Length (y)
Millimeters
Inches
Millimeters
"blank"
0.140 + 0.010
3.56 + 0.250
0.125 + 0.010
- 0.005
3.17 + 0.250
- 0.125
5
0.155 + 0.010
3.94 + 0.250
0.155 + 0.010
- 0.005
3.94 + 0.250
- 0.125
4.57 + 0.250
0.180 + 0.010
- 0.005
4.57 + 0.250
- 0.125
8
0.180 + 0.010
see Pin Length
Option Table
Receiver Coupling Option
“Blank” : DC Coupling
“AC” : AC Coupling
Note: These are target distances to be used for classification and not for specification, per Telcordia GR-253-CORE/ITU-T Recommendation G.957.
Optical Communication Products, Inc.
6101 Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, 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.
© 2005, Optical Communication Products, Inc.
6
21737-0266, Rev. D
07-06-2005
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