SOURCE ITR-D3T-SD6-A

ITR-D3T-SD6-A
1310/1490/1555nm Integrated
Triplexer Transceiver
Features
•
Single fiber, integrated triplexer transceiver
•
Compliant to FSAN G.984.2 specifications
•
Voice/Data/Video FTTx ONT/ONU applications
•
1310nm Tx, 1490nm Rx, 1555nm video Rx
•
1244Mbps Tx / 2488Mbps Rx asymmetric data rate
•
Burst mode upstream transmission
•
16.5dBmV minimum RF output power
•
1GHz video bandwidth, with feedback AGC operation, without MOCA filter
•
-40 to 85ºC operation
•
20km reach
•
28dB power budget
•
RoHS-5/6 compliant (lead exemption)
•
•
GR-326-CORE compliant SC/APC connector
Meets UL 94V-1 flammability
- Digital Transmitter: A DFB laser diode is employed for upstream transmission at OC-24 (1244Mbps). The optical transmitter includes a back facet
photodetector to monitor laser power for APC control.
- Digital Receiver: An APD with TIA is employed for downstream data reception at OC-48 (2488Mbps). A post amplifier is also included for CML
output compatibility.
- Analog Receiver: 1GHz forward path video (CATV) receiver with multiple gain stages, automatic gain control (AGC) and status indicators.
Lim.
Amp.
Rx Data
Rx
Section
TIA
1490nm APD
Receiver
WDM
1310nm Upstream
1490nm Downstream
1555nm Downstream
Tx
Section
1310nm
Laser
Optical
Triplexer
Module
Tx Data
LDD
RF Tilt /
Surge
Protection
1550nm PIN
Receiver
RF Out
MOCA
AGC
D/A
A/D
Microcontroller
RF
Detector
Video
Section
Triplexer Block Diagram
DS-5863 Rev 01
ITR-D3T-SD6-A
Absolute Maximum Ratings
Usage of this transceiver shall adhere to the following absolute maximum ratings. Stresses beyond those in Table 1 may cause permanent damage to
the unit. These are stress ratings only, and functional operation of the unit at these or any other conditions beyond those indicated in the operational
sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect unit reliability.
Table 1 - Absolute Maximum Ratings
Minimum
Maximum
-40
85
ºC
ESD Sensitivity (Human Body Model)
-
1000
V
Lead Soldering Temperature
-
260ºC
10 sec
Vdd_+12V
-0.3
15
V
Vcc_Rx
-0.3
+4.2
V
Vcc_Tx
-0.3
+4.2
V; Vcc_Tx < (Vcc_Rx + 1V)
Vcc_3.3V
-0.3
+4.2
V
-1500
+1500
V
Parameter
Ambient Storage Temperature
Lightning Surge
Unit/Conditions
Recommended Operating Conditions
The following table identifies the recommended operating condition for optical transceiver use.
Table 2 – Recommended Operating Conditions
Parameter
Minimum
Typical
Maximum
a
-40
-
85
Operating Humidity Range
10%
-
90%
non-condensing
Total 3.3V Supply Current
-
-
350
mA
Total 12V Supply Current
-
-
225
mA
Power Supply Ripple
-
-
100
mVp-p, 100Hz to 1MHz
Operating Temperature
a
Unit/Conditions
ºC
Minimum is ambient temperature; maximum is module case temperature.
DS-5863 Rev 01
ITR-D3T-SD6-A
Optical Characteristics
The following table summarizes the performance specifications for the integrated optical block located within the transceiver module.
Table 3 - Optical Characteristics
Minimum
Typical
Maximum
1555nm external to 1490 nm Rx Isolation
32
-
-
dB
1490nm external to 1555nm Rx Isolation
32
-
-
dB
1310nm external to 1555nm Video Isolation
40
-
-
dB
1310nm external to 1490nm data Isolation
30
-
-
dB
1310nm Tx to 1490nm Rx Optical Crosstalk
-
-
-47
dB
1310nm Tx to 1555nm Rx Optical Crosstalk
-
-
-47
dB
Back Reflection @ 1310nm
-
-
-6
dB
Back Reflection @ 1555nm
-
-
-32
dB
Back Reflection @ 1490nm
-
-
-20
dB
Parameter
Unit/Conditions
Functional Characteristics
The following tables list the performance specifications for the various functional blocks of the integrated optical transceiver module.
Table 4 – Digital Transmitter Specifications
Parameter
Operating Voltage
Data Rate
Average Optical Output Power, Po
Output Power at Transmit Off
Extinction Ratio
Minimum
Typical
Maximum
Unit
3.14
3.30
3.46
V
-
1244.16
-
Mbps
0.5
-
5
dBm
-
-
-40
dBm
10
-
-
dB
PRBS 223-1, NRZ, 50% duty cycle
-
ps
20% to 80%
Transmitter Output Eye
Optical Rise and Fall Time
Notes
Vcc referenced to GND_Tx
G.984.2 Figure 3
-
Side Mode Suppression Ratio (SMSR)
250
See below
Center Wavelength,λo
1290
-
1330
nm
Dual DFB modes allowed;
RMS Spectral line width <1.5nm;
SMSR >30dB for FP modes
Differential Input Voltage, Vin
300
-
1800
mVp-p
BEN+/- and TXD+/-. DC-coupled
Input Impedance, differential
-
100
-
Ω
BEN+/-, TXD+/-
Common-Mode Input Voltage
GND_Tx +
1.4
-
Vcc - (Vin/2) 0.1
V
DC coupled
Tx Burst Enable Time
-
-
12.86
ns
16 bits data @ 1244Mbps
Tx Burst Disable Time
-
-
12.86
ns
16 bits data @ 1244Mbps
DS-5863 Rev 01
ITR-D3T-SD6-A
Refer to
Figure 1 which schematically describes the high speed data inputs/outputs of the optical transceiver module.
Tx Data
&
Burst Enable
100 Ω
TX
100Ω Differential
Transmission Line
For CML
Tx Data
LDD/Post amp .
0.1µF
RX
Rx Data
100Ω Differential
Transmission Line
0.1µF
Figure 1 - Schematic representation of the module high speed inputs/outputs
Table 5 – Digital Receiver Specifications
Parameter
Operating Voltage
Data Rate
Operational Wavelength Range
Received Optical Power
Minimum
Typical
Maximum
Unit
3.14
3.30
3.46
V
-
2488.32
-
Mbps
1480
-
1500
nm
-28
-
-8
dBm
Bit Error Rate (BER)
-
CID
10
-
Signal Detect Assertion Level
Signal Detect De-Assertion Level
160
a
-
ps
-28
dBm
Transition during increasing light
Transition during decreasing light
-
-
dBm
Signal Detect Hysteresis
0.5
-
-
dB
Differential Output Voltage
600
-
900
mV
Signal Detect Output HIGH Voltage
2.4
-
-
V
Signal Detect Output LOW Voltage
-
-
0.5
V
-28
-
-8
dBm
-3
-
+3
dB
b
RSSI Accuracy
a
23
PRBS 2 -1, 50% duty cycle
bits
-38
RSSI Range
Vcc referenced to GND_RX
-10
72
Data Output Rise and Fall Time
Notes
20% to 80%
CML output, ac coupled (0.1µF)
LVTTL with internal pull up resistor.
Asserts HIGH when input data
amplitude is above threshold.
LVTTL. De-asserts LOW when input
data amplitude is below threshold.
Rx outputs are squelched upon Signal Detect de-assert
DS-5863 Rev 01
ITR-D3T-SD6-A
b
Externally calibrated.
Table 6 – Video Receiver Specifications
Parameter
Minimum
Typical
Maximum
Unit
11.7
-
13.2
V
54
-
1000
MHz
1550
1555
1560
nm
0.8
-
-
A/W
Video PD Monitor Accuracy
-
-
10
%
AGC Time Constant
1
5
15
s
S22 Output Return Loss
14
20
Minimum
Typical
12V Operating Voltage Range
Frequency Range
Receiver Wavelength (Bandwidth)
Responsivity
dB
Notes
75Ω
Table 7 - Supported Video Channel Plans
Parameter
Maximum
Unit
Notes
Channel Plan
Analog Channels
a
Digital Channels
82
-
-
OMI = 3.4% / channel
34
-
-
OMI = 1.7% / channel
4
-
MHz
6
-
MHz
1
dBm
Channel Bandwidth
Channel Spacing
-
Received Average Optical Power
-6
RF Channel Output Power
55MHz
16.5
-
-
dBmV
RF Channel Output Power
Distortion
1000MHz
CSO
CTB
19.5
-
-65
-62
-55
-55
dBmV
45
-
-
dB
Carrier to Noise Ratio (CNR)
a
dBc
Linear lower bound from 55-1000MHz
For digital channels, CSO max. and
CTB max. will be 7dB higher
Total OMI = 32%
DS-5863 Rev 01
ITR-D3T-SD6-A
Table 8 - Microcontroller Specifications
Parameter
Operating Voltage
SDA
SCL
Minimum
Typical
Maximum
Unit
3.14
3.30
3.46
V
-
-
-
-
-
-
-
-
30
-
-
ms
-
-
-
-
Notes
2
a
b
Reset hold
Interrupt
c
LVTTL, open collector serial data line from the I C
bus to the on board Microcontroller.
2
LVTTL, open collector serial clock line from the I C
bus to the on board Microcontroller.
LVTTL input, internal 50kΩ pull-up. Active Low
LVTTL output, internal 100kΩ pull-up. Active Low
a
I C SDA and SCL must be open collector or open drain connections.
b
2
Clock stretching, as per paragraph 13.2 of the I C Bus Standard, must be implemented to operate correctly.
c
Please see Table 9 and the timing diagram in Figure 2 below for the recommended system start-up sequence.
2
Table 9 – Suggested Start-up Sequence
Step
Action
1
Power up the host system, with the RESET pin pulled to ground via a ≤4.7kΩ resistor.
2
Drive the RESET pin LOW.
3
Set the BEN control lines to disable the transmitter (BEN lines must be driven with differential logic).
4
Ensure power to the unit is on.
5
Drive the RESET pin HIGH to release the unit to become operational.
6
Wait approximately 250ms until the INTERRUPT pin goes LOW.
7
Read bytes A2.70/71/74/75 to clear the interrupt condition. Verify that byte A2.75 bit 7 was set. Use multi-byte read of bytes
70/71 and bytes 74/75.
8
Wait 50ms. Verify that the INTERRUPT pin has changed to HIGH.
9
The unit is now ready for normal operation.
Figure 2 - Recommended transceiver module start-up sequence
DS-5863 Rev 01
ITR-D3T-SD6-A
Pin Definitions
Refer to Table 10 for a description of the function of each I/O pin.
Table 10 - Module Pin Definitions
Pin Number
Label
Definition
1
GND_A
Common ground
2
GND_Rx
Digital Rx ground
3
Vcc_Rx
Digital Rx Vcc
4
SD
5
RXD+
RX data output, CML. 50Ω terminated to Vcc and AC coupled to module output (0.1µF).
6
RXD-
RX data bar output, CML. 50Ω terminated to Vcc and AC coupled to module output (0.1µF).
7
BEN+
Burst Enable input, CML. Internally DC coupled. 100Ω differential termination.
8
BEN-
Burst Enable bar input, CML. Internally DC coupled. 100Ω differential termination.
9
GND_Tx
10
TXD+
11
GND_Tx
12
TXD-
13
Vcc_Tx
14
SDA
I2C Data input/output. LVTTL
15
SCL
I2C Clock input. LVTTL
16
INT
Interrupt output. LVTTL with internal 100kΩ pull-up. Active LOW.
17
Vdd_+12V
Video Rx 12V Vdd
18
Vcc_3.3V
Microcontroller Vcc
19
Reset
20
GND_A
21
RF_GND
RF ground
22
RF_SIGNAL
RF signal
23
RF_GND
RF ground
Signal Detect output. LVTTL with internal 3.3kΩ pull-up. Asserts HIGH when input optical signal level
is above threshold.
Digital Tx ground
Tx data input, CML. Internally DC coupled. 100Ω differential termination.
Digital Tx ground
Tx data bar input, CML. Internally DC coupled. 100Ω differential termination.
Digital Tx Vcc
Reset input. LVTTL. Internal pull up. Active low.
Common ground
DS-5863 Rev 01
ITR-D3T-SD6-A
Package Diagram
23.5 ±1.5
[597 ±38]
Notes
1. Dimensions in inches [mm]
2. Minimum fiber bend radius = 1.18 [30.00]
DS-5863 Rev 01
ITR-D3T-SD6-A
Ordering Information
Table 11 - Ordering Information
Part No.
Application
Data Rate
Laser Source
Temp. Range
ITR-D3T-SD6-A
GPON ONT
1244.16Mb/s / 2488.32Mb/s
1310nm DFB
-40 to 85°C
Table 12 - Device Handling/ESD Protection
The devices are static sensitive and may easily be damaged if care is not taken during handling. The following handling practices are
recommended.
1
Devices should be handled on benches with conductive and grounding surfaces.
2
All personnel, test equipment and tools shall be grounded.
3
Do not handle the devices by their leads.
4
Store devices in protective foam or carriers.
5
Avoid the use of non-conductive plastics, rubber, or silk in the area where the devices are handled
6
All modules shall be packaged in materials that are anti-static to protect against adverse electrical environments.
7
Avoid applications of any voltage higher than maximum rated voltages to this part. For proper operation, any VIN or VOUT should be
constrained to the range GND ≤ (VIN or VOUT) ≤ VCC. Unused inputs must always be tied to an appropriate logic voltage (e.g.
either GND or VCC). Unused outputs must be left open.
DS-5863 Rev 01
ITR-D3T-SD6-A
Warnings
Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static free environment is highly
recommended. Follow guidelines according to proper ESD procedures.
Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.
Legal Notice
IMPORTANT NOTICE!
All information contained in this document is subject to change without notice, at Source Photonics’ sole and absolute discretion. Source Photonics
warrants performance of its products to current specifications only in accordance with the company’s standard one-year warranty; however, specifications
designated as “preliminary” are given to describe components only, and Source Photonics expressly disclaims any and all warranties for said products,
including express, implied, and statutory warranties, warranties of merchantability, fitness for a particular purpose, and non-infringement of proprietary
rights. Please refer to the company’s Terms and Conditions of Sale for further warranty information.
Source Photonics assumes no liability for applications assistance, customer product design, software performance, or infringement of patents, services,
or intellectual property described herein. No license, either express or implied, is granted under any patent right, copyright, or intellectual property right,
and Source Photonics makes no representations or warranties that the product(s) described herein are free from patent, copyright, or intellectual property
rights. Products described in this document are NOT intended for use in implantation or other life support applications where malfunction may result in
injury or death to persons. Source Photonics customers using or selling products for use in such applications do so at their own risk and agree to fully
defend and indemnify Source Photonics for any damages resulting from such use or sale.
© Copyright Source Photonics, Inc. 2007~2008
All Rights Reserved.
All information contained in this document is subject to change without notice. The products described in this document are NOT
intended for use in implantation or other life support applications where malfunction may result in injury or death to persons.
The information contained in this document does not affect or change Source Photonics product specifications or warranties. Nothing in
this document shall operate as an express or implied license or indemnity under the intellectual property rights of Source Photonics or
third parties. All information contained in this document was obtained in specific environments, and is presented as an illustration. The
results obtained in other operating environments may vary.
THE INFORMATION CONTAINED IN THIS DOCUMENT IS PROVIDED ON AN ”AS IS” BASIS. In no event will Source Photonics be
liable for damages arising directly from any use of the information contained in this document.
Contact
SOURCE PHOTONICS
20550 NORDHOFF ST.
CHATSWORTH, CA 91311
[email protected]
Tel: 818-773-9044
Fax: 818-576-9486
Or visit our website: http://www.sourcephotonics.com
DS-5863 Rev 01