© Finisar Corporation July 09, 2004 Rev. B Page 1
Product Specification
Single Mode 155 Mbit/s
ATM/SDH/SONET 1x9 Transceiver
V23826-C18-Cxx/Cxxx
V23826-C18-Txx/Txxx
File: 1167
V23826-C18-C
File: 1168
V23826-C18-T
PRODUCT FEATURES
• Compliant with ATM, SONET OC-3, SDH
STM-1
• Meets mezzanine standard height of
9.8 mm
• Compact integrated transceiver unit with
– MQW laser diode transmitter
– InGaAs PIN photodiode receiver
–Duplex SC/ST
®
receptacle
• Class 1 FDA and IEC laser safety
compliant
• Single power supply (5 V or 3.3 V)
• Signal detect indicator
• PECL differential inputs and outputs
• Process plug included
• Input signal monitor
• Wave solderable and washable with
process plug inserted
• Industry standard multisource 1x9
footprint
• For distances of up to 15 km/40 km on
single mode fiber
APPLICATIONS
• SONET OC-3 IR-1
Telcordia GR-253-CORE
• SDH STM-1 S-1.1 ITU-T G.957
• Suitable for Fast Ethernet
ST® is a registered trademark of AT&T.
For PRODUCT SELECTION see next page.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 2
PRODUCT SELECTION
Part Number Voltage Signal
Detect
Input Output Temperature
Range
Connector Reach
V23826-C18-C63
1)
5 V PECL DC DC 0°C - 70°C SC 15 km
V23826-C18-C363
1)
3.3 V
V23826-C18-C64
1)
5 V PECL DC DC 0°C - 70°C SC 40 km
V23826-C18-C364
1)
3.3 V
V23826-C18-C366
1)
3.3 V PECL DC DC –40°C - 85°C SC 15 km
V23826-C18-T63 5 V PECL DC DC 0°C - 70°C ST
®
15 km
V23826-C18-T363 3.3 V
V23826-C18-T64 5 V PECL DC DC 0°C - 70°C ST
®
40 km
V23826-C18-T364 3.3 V
1)
P/N Suffix Shield Options
-C3 Metallized cover, forward springs
-D3 Metallized cover, backward springs
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 3
Pin Configuration
Figure 1 V23826-C18-C
Figure 2 V23826-C18-T
123456789
Rx
Tx
Top view
File: 1340
Bottom
view
1
9
Rx
Tx
File: 1341
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 4
Pin Description
Pin
No.
Symbol Level/Logic Function Description
1VEERx Power Supply Rx Ground Negative power supply,
normally ground
2 RD+ PECL Output Rx Output Data Receiver output data
3 RD– Inverted receiver output data
4SD PECL
1) Output Rx Signal
Detect
A high level on this output shows
that optical data is applied to the
optical input
5VCCRx Power Supply Rx 3.3 V/5 V1) Positive power supply,
3.3 V/5 V
6VCCTx Tx 3.3 V/5 V1)
7 TD– PECL Input Tx Input Data Inverted transmitter input data
8 TD+ Transmitter input data
9VEETx Power Supply Tx Ground Negative power supply,
normally ground
S1/2 Mech. Support Stud Pin Not connected
Notes:
1) See PRODUCT SELECTION.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 5
Description
The Finisar single mode ATM transceiver complies with the ATM Forum’s Network
Compatible ATM for Local Network Applications document and ANSI’s Broadband
ISDN - Customer Installation Interfaces, Physical Media Dependent Specification,
T1.646-1995, Bellcore-SONET OC-3 / IR-1/LR-1 and ITU-T G.957 STM-1 / S-1.1/L-1.1.
ATM was developed to facilitate solutions in multimedia applications and real time
transmission. The data rate is scalable, and the ATM protocol is the basis of the
broadband public networks being standardized in the International Telecommunications
Union (ITU), the former International Telegraph and Telephone Consultative Committee
(CCITT). ATM can also be used in local private applications.
The Finisar single mode transceiver is a single unit comprised of a transmitter, a
receiver, and an SC/ST® receptacle. This design frees the customer from many
alignment and PC board layout concerns. The module is designed for low cost WAN
applications. It can be used as the network end device interface in workstations, servers,
and storage devices, and in a broad range of network devices such as bridges, routers,
and intelligent hubs, as well as wide area ATM switches.
This transceiver operates at 155.520 Mbit/s from a single power supply (5 V or 3.3 V).
The differential data inputs and outputs are PECL compatible.
Functional Description
This transceiver is designed to transmit serial data via single mode cable.
Figure 3 Functional Diagram
Laser
Driver Laser
Monitor
Power
Control
Receiver
SD
TD+
RD+
RD−
TD−
Tx
Coupling Unit
Rx
Coupling Unit
e/o
o/e
o/e
LEN
ISM
File: 1362
Signal Monitor and
Automatic Shut-Down
Single
Mode
Fiber
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 6
The transmitter converts electrical PECL compatible serial data (TD+ and TD–) into
optical serial data. It contains a laser driver circuit that drives the modulation and bias
current of the laser diode. The currents are controlled by a power control circuit to
guarantee constant output power of the laser over temperature and aging.
The power control uses the output of the monitor PIN diode (mechanically built into the
laser coupling unit) as a controlling signal, to prevent the laser power from exceeding the
operating limits.
This transceiver contains an Input Signal Monitor (ISM), that switches the optical power
off if a continuously low level is applied at Data Input.
The receiver component converts the optical serial data into PECL compatible electrical
data (RD+ and RD–). The Signal Detect (SD, active high) shows whether optical data is
present1).
This module is a Class 1 laser product, due to an integrated automatic shutdown circuit
that disables the laser when it detects transmitter failures.
Single fault condition is ensured by means of an integrated automatic shutdown circuit
that disables the laser when it detects transmitter failures. A reset is only possible by
turning the power off, and then on again.
The transceiver contains a supervisory circuit to monitor the power supply. This circuit
makes an internal reset signal whenever the supply voltage drops below the reset
threshold. It keeps the reset signal active for at least 15 milliseconds after the voltage
has risen above the reset threshold. During this time the laser is inactive.
Notes:
1) We recommend to switch off the transmitter supply (VCCTx) if no transmitter input data is applied.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 7
Regulatory Compliance
Feature Standard Comments
ESD:
Electrostatic Discharge
to the Electrical Pins
MIL-STD 883D
Method 3015.7
JESD22-A114-B
Class 1 (> 1000 V) HBM
Class 1C
Immunity:
Electrostatic Discharge
(ESD) to the Duplex
SC/ST® Receptacle
EN 61000-4-2
IEC 61000-4-2
Discharges of ±15 kV with an air
discharge probe on the receptacle
cause no damage.
Immunity:
Radio Frequency
Electromagnetic Field
EN 61000-4-3
IEC 61000-4-3
With a field strength of 3 V/m,
noise frequency ranges from
10 MHz to 1 GHz1).
No effect on transceiver performance
between the specification limits.
Emission:
Electromagnetic
Interference (EMI)
FCC 47 CFR Part 15
Class B
EN 55022 Class B
CISPR 22
Noise frequency range:
30 MHz to 18 GHz;
Margins depend on PCB layout and
chassis design.
Notes:
1) 10 MHz to 2 GHz for V23826-C18-C63/C363.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 8
Technical Data
Exceeding any one of these values may destroy the device immediately.
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit
min. max.
Package Power Dissipation1)
Notes:
1) For VCC–VEE (min., max.). 50% duty cycle. The supply current does not include the load drive current of the
receiver output.
1.52)
0.93) W
Supply Voltage 5 V
3.3 V
VCC–VEE 7
5
V
Data Input Levels VCC+0.5 V
Differential Data Input Voltage Swing VIDpk-pk 5 V
Operating Ambient Temperature2)
2) Not for V23826-C18-C366.
070°C
Operating Ambient Temperature3)
3) Only for V23826-C18-C366.
–40 85 °C
Storage Ambient Temperature –40 85 °C
Soldering Conditions Temp/Time
(MIL-STD 883C, Method 2003)
250/5.5 °C/s
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 9
The electro-optical characteristics described in the following tables are only valid for use
under the recommended operating conditions.
Recommended Operating Conditions
Parameter Symbol Values Unit
min. typ. max.
Ambient Temperature1) TAMB 070°C
Ambient Temperature2) TAMB –40 85 °C
Power Supply Voltage 3.3 V
5 V
VCC–VEE 3.1
4.75
3.3
5
3.5
5.25
V
Supply Current3) 3.3 V
5 V
ICC 175
175
190
2304)
2505)
270
mA
Transmitter
Data Input High Voltage DC/DC VIH–VCC –1165 –880 mV
Data Input Low Voltage DC/DC VIL–VCC –1810 –1475 mV
Differential Data Input
Voltage Swing
VIDpk-pk 400 3200 mV
Input Data Rise/Fall Time
10% - 90%
tR, tF0.4 1.3 ns
Receiver
Output Current6) IO25 mA
Input Center Wavelength λC1260 1360 nm
Notes:
1) Not for V23826-C18-C366.
2) Only for V23826-C18-C366.
3) For VCC–VEE (min., max.) 50% duty cycle. The supply current does not include the load drive current of the
receiver output.
4) For V23826-C18-C63/C363/T63/T363.
5) For V23826-C18-C64/C364/C366/T64/T364.
6) For V23826-C18-C64/C364/T64/T364 only.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 10
Transmitter Electro-Optical Characteristics
Parameter Symbol Values Unit
min. typ. max.
C23826-C18-Xx3/Xxx3/Xx6/Xxx6
Launched Power (Average)1) PO–15 –11 –8 dBm
Center Wavelength λC1260 1360 nm
Spectral Width (RMS) σl7.7 nm
Relative Intensity Noise RIN –120 dB/Hz
Extinction Ratio (Dynamic) ER 8.2 dB
Reset Threshold2) 3.3 V
5 V
VTH 2.7
3.5
V
Reset Time Out2) tRES 15 22 35 ms
Eye Diagram3) ED
C23826-C18-Xx4/Xxx4
Output Power (Average)1) PO–5 –3 0 dBm
Center Wavelength λC1280 1335 nm
Spectral Width (FWHM) Dl2.4 3 nm
Output Rise Time tR0.6 3 ns
Extinction Ratio (Dynamic) ER 10 dB
Reset Threshold 3.3 V
for VCCTx2) 5 V
VTH 2.7
3.5
V
Reset Active Time Out2) tRES 15 25 35 ms
Eye Diagram3) ED
Notes:
1) Into single mode fiber, 9 µm diameter.
2) Laser power is shut down if power supply is below VTH and switched on if power supply is above VTH after tRES.
3) Transmitter meets ANSI T1E1.2, SONET OC-3 and ITU-T G.957 mask patterns.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 11
Receiver Electro-Optical Characteristics
Parameter Symbol Values Unit
min. typ. max.
Sensitivity (Average Power)1)
V23826-C18-Xx(x)3/Xx(x)6
V23826-C18-Xx(x)4
PIN –36
–36
–31
–34
dBm
Saturation (Average Power)
V23826-C18-Xx(x)3/Xx(x)6
V23826-C18-Xx(x)4
PSAT –8
–2
dBm
Signal Detect Assert Level2) PSDA –37.5 –34 dBm
Signal Detect Deassert Level3) PSDD –44 –40 dBm
Signal Detect Hysteresis PSDA
–PSDD
12.56dB
Signal Detect Assert Time tASS 100 µs
Signal Detect Deassert Time tDAS 350 µs
Output Low Voltage4) VOL–VCC –1950 –1620 mV
Output High Voltage4) VOH–VCC –1025 –720 mV
Output Data Rise/Fall Time
20% - 80%
tR, tF375 ps
Output SD Rise/Fall Time5) 40 ns
Notes:
1) Minimum average optical power at which the BER is less than 1x10–10 or lower. Measured with a 223–1 NRZ
PRBS as recommended by ANSI T1E1.2, SONET OC-3 and ITU-T G.957.
2) An increase in optical power of data signal above the specified level will cause the Signal Detect to switch from
a low state to a high state.
3) A decrease in optical power of data signal below the specified level will cause the Signal Detect to switch from
a high state to a low state.
4) DC/DC, PECL for Signal Detect, PECL compatible. Load is 50 Ω into VCC–2 V for data, 500 Ω to VEE for Signal
Detect. Measured under DC conditions. For dynamic measurements a tolerance of 50 mV should be added.
VCC = 3.3 V/5 V. TAMB = 25°C.
5) V23826-C18-C64/C364/T64/T364:
PECL compatible. A high level on this output shows that an optical signal is applied to the optical input.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 12
Eye Safety
This laser based single mode transceiver is a Class 1 product. It complies with IEC
60825-1/A2: 2001 and FDA performance standards for laser products (21 CFR 1040.10
and 1040.11) except for deviations pursuant to Laser Notice 50, dated July 26, 2001.
CLASS 1 LASER PRODUCT
To meet laser safety requirements the transceiver shall be operated within the Absolute
Maximum Ratings.
Note: All adjustments have been made at the factory prior to shipment of the devices.
No maintenance or alteration to the device is required.
Tampering with or modifying the performance of the device will result in voided
product warranty.
Failure to adhere to the above restrictions could result in a modification that is
considered an act of “manufacturing”, and will require, under law, recertification
of the modified product with the U.S. Food and Drug Administration (ref. 21 CFR
1040.10 (i)).
Figure 4 Required Labels
Figure 5 Laser Emission
Laser Emission Data
Wavelength 1310 nm
Maximum total output power
(as defined by IEC: 7 mm aperture at 14 mm distance)
15.6 mW / 11.9 dBm
Beam divergence (full angle) / NA (half angle) 11° / 0.1 rad
Class 1 Laser Product
IEC
Complies with 21 CFR
1040.10 and 1040.11
FDA
File: 1401
Laser
Emission Tx
Top view
Rx File: 1339
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 13
Application Notes
ATM transceivers and matching circuits are high frequency components and shall be
terminated as recommended in the application notes for proper EMI performance.
Electromagnetic emission may be caused by these components.
To prevent emissions it is recommended that cutouts for the fiber connectors be
designed as small as possible.
It is recommended that the Tx plug and the Rx plug be separated with a bar that divides
the duplex SC opening.
Single Mode 155 Mbit/s ATM 1x9 Transceiver
Figure 6
Laser
Driver
Signal
Detect
Limiting
Amplifier
Pre-
Amp RD
-
RD+
Tx+
Tx
-
RD+
ECL/PECL
Driver
Receiver
PLL etc.
1x9 Transceiver
1
2
3
4
5
6
7
8
9
SD to upper level
VEETx
TD+
TD−
VCCTx
VCCRx
SD
RD+
RD−
VEERx
VCC
L1
L2
C2
C1
R9
R5
R6
R3
R4
R1
R2
R7
R8
R11
R10
C3
C4
C5
C6
C7
RD−
File: 1389
C1/2/3
C4/5/6/7
L1/2
R5/6
R7/8
(depends on SerDes chip used)
R9
= 4.7 µF
= 100 nF
= 1 µH
= 270 Ω (5 V)
= 150 Ω (3.3 V)
= 127 Ω (5 V)
= 82 Ω (3.3 V)
= 510 Ω (5 V)
= 270 Ω (3.3 V)
R10/11
(depends on SerDes chip used)
Place R1/2/3/4 close to SerDes chip, depends on SerDes chip
used, see application note of SerDes supplier.
Place R5/6/7/8/10/11 close to 1x9 transceiver.
1)
Design criterion of the capacitor used is the resonant
frequency and its value must be in the order of the nominal
data rate. Short trace lengths are mandatory.
= 82 Ω (5 V)
= 127 Ω (3.3 V)
VCC SerDes
5 V / 3.3 V
VCC
5 V / 3.3 V
Serializer/
Deserializer
1)
1)
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 14
3.3 V-transceivers can be directly connected to SerDes chips using standard PECL
termination network.
Value of R1...R4 may vary as long as proper 50 Ω termination to VEE or 100 Ω differential
is provided. The power supply filtering is required for good EMI performance. Use short
tracks from the inductor L1/L2 to the module VCCRx/VCCTx. Further application notes for
electrical interfacing are available upon request. Ask for Appnote 82.
We strongly recommend a VEE plane under the module for getting good EMI
performance.
The transceiver contains an automatic shutdown circuit. Reset is only possible if the
power is turned off, and then on again. (VCCTx switched below VTH).
Application Board available on request.
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 15
Shield Options
Figure 7 Shield with Forward Springs, -C3
Dimensions in mm [inches]
File: 1508
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 16
Figure 8 Shield with Backward Springs, -D3
Dimensions in mm [inches] File: 1509
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 17
Package Outlines
Figure 9 V23826-C18-C
(8.6 max)
.343 max
4.875
.192
(0.35 ±0.1)
.014 ±.004
(3.8 max)
.15 max
(2.8 max)
.11 max
∅ 0.3
∅ .012
MA
A
M
(1.4 −0.05)
.005 −.002
2x
(9.79 max)
.385 max
2
.08
(0.6 ±0.1)
.024 ±.004
(3.3 ±0.3)
.130 ±.011
(1 ±0.1)
.04 ±.004
(0.63 ±0.2)
.025 ±.008
(∅ 0.46 ±0.05)
∅ .018 ±.002
9x
∅ 0.3
∅ .012
MA
A
∅ 0.1
∅ .004
M
M
PC board
(25.25 ±0.05)
.994 ±.002
A
2.54
.1
20.32
.8
8x
8x
987654321
Z
(2.05 ±0.05)
.079 ±.002
12.7
.5
(2.5 ±0.1)
.098 ±.004
DUPLEX
SC
RECEPTACLE
1
32
(11 max)
.433 max
(15.88 ±0.5)
.625 ±.02
(38.6 ±0.15)
1.52 ±.006
20.32
.8
M
OPTICAL
CENTERLINE
(PC board
thickness)
View Z
(lead cross section
and standoff size)
11x
M
M
∅ 0.1
∅ .004
9x
(0.8 ±0.1)
.032 ±.004
2.54 20.32
.1 .8
8x
8x
(2.54)
.1
(2.54)
.1
20.32
.8
(1.9 ±0.1)
.075 ±.004
11x
2x
Top view
Side view
Footprint
Top view
Dimensions in (mm) inches
File: 1252
Transceiver without Shield
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 18
Figure 10 V23826-C18-T
(0.46) .02 x 9
(14.4) .567
(9.8) max.
.39 max.
(41.2) 1.622
(3.8) .15 max.
(2.8)
max.
.11
max.
(18.47) .727 (20.32) .8
(5.27) .207
(1) .039
(0.6)
.024
(3 −0.2)
.118 −.008
A
∅(1.4)
∅.055
2x ∅(0.1) M A M
Bottom
view
∅(0.3) M A M
(1.4)
(25.4) max.
1 max.
(20.32)
8
(2.54)
.1
(12.7)
.5
1
9
Dimensions in (mm) inches File: 1253
V23826-C18-Cxx/Cxxx, V23826-C18-Txx/Txxx Product Specification – July 2004
© Finisar Corporation July 09, 2004 Rev. B Page 19
For More Information
Finisar Corporation
1308 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com
Revision History: July 09, 2004 Rev. B
Previous Version: 2000
Page Subjects (major changes since last revision)
Company name has been changed
Document’s layout has been changed
December 2004
