1. PRODUCT FEATURES
l Up to 1.25Gb/s data links
l DFB laser transmitter
l APD photo-detector
l Up to 120KM on 9/125µm SMF
l Hot-pluggable SFP footprint
l BIDI LC/UPC type pluggable optical interface
l Low power dissipation
l Metal enclosure, for lower EMI
l RoHS compliant and lead-free
l Single +3.3V power supply
l Support Digital Diagnostic Monitoring interface
l Compliant with SFF-8472
l Case operating temperature
l Commercial: 0°C to +70°C
2. APPLICATIONS
l Switch to Switch Interface
l Gigabit Ethernet
l Switched Backplane Applications
l Router/Server Interface
l Other Optical Links
3.PRODUCT DESCRIPTION
SOCPB-xx12-K2D Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form
Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, limiting amplifier, the digital diagnostic monitor, the DFB laser and the APD .The module data link up to 120KM
in 9/125um single mode fiber.
The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also candisablethe module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link
status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.
|
Pin
|
Symbol
|
Name/Description
|
Ref.
|
|
1
|
VEET
|
Transmitter Ground (Common with Receiver Ground)
|
1
|
|
2
|
TFAULT
|
Transmitter Fault.
|
|
|
3
|
TDIS
|
Transmitter Disable. Laser output disabled on high or open.
|
2
|
|
4
|
MOD_DEF(2)
|
Module Definition 2. Data line for Serial ID.
|
3
|
|
5
|
MOD_DEF(1)
|
Module Definition 1. Clock line for Serial ID.
|
3
|
|
6
|
MOD_DEF(0)
|
Module Definition 0. Grounded within the module.
|
3
|
|
7
|
Rate Select
|
No connection required
|
4
|
|
8
|
LOS
|
Loss of Signal indication. Logic 0 indicates normal operation.
|
5
|
|
9
|
VEER
|
Receiver Ground (Common with Transmitter Ground)
|
1
|
|
10
|
VEER
|
Receiver Ground (Common with Transmitter Ground)
|
1
|
|
11
|
VEER
|
Receiver Ground (Common with Transmitter Ground)
|
1
|
|
12
|
RD-
|
Receiver Inverted DATA out. AC Coupled
|
|
|
13
|
RD+
|
Receiver Non-inverted DATA out. AC Coupled
|
|
|
14
|
VEER
|
Receiver Ground (Common with Transmitter Ground)
|
1
|
|
15
|
VCCR
|
Receiver Power Supply
|
|
|
16
|
VCCT
|
Transmitter Power Supply
|
|
|
17
|
VEET
|
Transmitter Ground (Common with Receiver Ground)
|
1
|
|
18
|
TD+
|
Transmitter Non-Inverted DATA in. AC Coupled.
|
|
|
19
|
TD-
|
Transmitter Inverted DATA in. AC Coupled.
|
|
|
20
|
VEET
|
Transmitter Ground (Common with Receiver Ground)
|
1
|
4.Pin Descriptions
Notes:
1.Circuit ground is internally isolated from chassis ground.
2.Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
3.Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.
MOD_DEF(0) pulls line low to indicate module is plugged in.
4.This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (mostlikely Fiber Channel 1x and 2x Rates). If implemented, the input will be internally pulled down with > 30kΩ
resistor. The input states are:
Low (0 – 0.8V): Reduced Bandwidth
(>0.8V, < 2.0V): Undefined
High (2.0 – 3.465V): Full Bandwidth
Open: Reduced Bandwidth
5.LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between
2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
Figure 2: Pin-out of Connector Block on Host Board
5. Absolute Maximum Ratings

6. Recommended Operating Conditions

7.Specification of Transmitter

Note (1): ”XX” are:27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 and 61. Please see the “Product
selection” section on page 2.
Note (2): Transmitter eye mask definition.

8. Specification of Receiver

Note (1): “YY” is :27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 and 61.
Note (2): Measured with Light source ER=8.2dB; BER =<10-12 @PRBS=2^23-1 NRZ.
Note (3): When LOS de-asserted, the RX data+/- output is signal output.
9. Electrical Interface Characteristics

10. Digital Diagnostic Functions
SINOVO transceivers support the 2-wire serial communication protocol as defined in the SFP MSA. It
is very closely related to the E2PROM defined in the GBIC standard, with the same electrical
specifications.
The standard SFP serial ID provides access to identification information that describes the
transceiver’s capabilities,standard interfaces, manufacturer, and other information.
In addition,SINOVO SFP
Transceiver provide a unique enhanced digital diagnostic monitoring interface, which allowsreal-time access to
device operating parameters such as transceiver temperature, laser bias current, transmitted
Opticalpower, received optical power and transceiver supply voltage. It also defines a
sophisticated system of alarm andwarning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.
The SFP MSA defines a 256-byte memory map in E2PROM that is accessible over a 2-wire serial interface at the 8 bitaddress 1010000X (A0h). The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), sothe originally defined serial ID memory map remains unchanged. The interface is identical to, and is thus fully backwardcompatible with both the GBIC Specification and the SFP
Multi Source Agreement.
The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller(DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated,the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiverinto those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver.
The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction withSCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data wordsthat can be addressed individually or sequentially.
Digital diagnostics for the SOCPB-xx12-K2D are Internally calibrated by default.
11. Recommend Circuit Schematic

12.
Mechanical Specifications (Unit: mm)

13.
Regulatory Compliance

14. Contract
Shenzhen
Sinovo Telecom Co. Ltd
Website:www.sinovocorp.com Email:sales@sinovocorp.com
Tel:+86(0)0755-3295
9919 Fax:+86(0)755 3295 9918
Factory ADD: 4~5F,NO.658,Meijing
West Rd,Dalang Town,Dongguan City, Guangdong,China
Head Quarter:11/F,Taibang Technology Building,Gaoxin
South 4th,Science and Technology Park South,Nanshan,Shenzhen,China 51804
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