25G ELR SFP28 BIDI 1270/1330nm 20km DOM Simplex LC SMF Transceiver
SFP28BD-25-1213-20(ELR)-LC
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| SPECIFICATIONS | |||
|---|---|---|---|
| Product Model | SFP28BD-25-1213-20(ELR)-LC | Manufacturer Brand | PHILISUN |
| Package Type | SFP28 | Optical Connector | LC |
| Max Data Rate | 25.78Gbps | Channel Data Rate | - |
| Effective Transmission Distance | 20km | ||
| Wavelength | 1270nm-TX/1330nm-RX | Operating Voltage | 3.3V |
| Fiber Type | SMF | Core Size | 9/125µm |
| Transmitter Type | DFB BiDi | Receiver Type | PIN |
| TX Power | 0~6dBm | Receiver Sensitivity | <-14dBm |
| Digital Optical Monitoring(DOM) | YES | Receiver Overload | 2.5dB |
| Power Consumption | ≤1.2W | Protocols | eCPRI, SFF-8472, SFF-8432, SFF-8431 |
| Operating Temperature(Commercial) | 0℃~+70℃ | Storage Temperature(Commercial) | -40℃~+85℃ |
PRODUCT PRESENTATION
The PHILISUN SFP28 BIDI 25G 1270/1330nm 20km ELR LC SX transceiver is a high-performance module designed for bidirectional optical data transmission over single-mode fiber, supporting distances of up to 20km. It complies with SFF-8472, SFF-8402, SFF-8432, and applicable sections of SFF-8431 standards.Equipped with digital diagnostic monitoring via a 2-wire serial interface, as outlined in SFF-8472, this transceiver ensures reliable performance and precise monitoring for seamless integration into high-speed network applications.
TRANSCEIVER SERIES PRODUCTS
PRODUCTION & TESTING EQUIPMENT
PERFORMANCE PARAMETER
| Absolute Maximum Ratings | |||||||||
| Parameter | Symbol | Unit | Min. | Max. | |||||
| Storage temperature range | TS | °C | -40 | 85 | |||||
| Relative humidity | RH | % | 0 | 85 | |||||
| Supply voltage | VCC | V | -0.3 | 3.6 | |||||
| Recommended Operating Conditions | |||||||||
| Parameter | Symbol | Unit | Min. | Typ. | Max. | ||||
| Operating case temperature range | Tc | ℃ | -40 | – | 85 | ||||
| Power supply voltage | VCC | V | 3.135 | 3.3 | 3.465 | ||||
| Bit rate | BR | Gb/s | 24.33024 | 25.78125 | – | ||||
| Max. supported link length | L | km | 10 | 20 | – | ||||
| Electrical Characteristics | |||||||||
| Parameter | Symbol | Unit | Min. | Typ. | Max. | Note | |||
| Supply voltage | VCC | V | 3.14 | 3.3 | 3.46 | – | |||
| Supply current | Icc | mA | – | – | 360 | @3.3V | |||
| Transmitter | |||||||||
| Input differential impedance | Rin | Ω | – | 100 | – | – | |||
| Single ended data input swing | VIN | mVp-p | 90 | – | 450 | – | |||
| Transmit disable voltage | VDIS | V | 2 | – | VCCHOST | – | |||
| Transmit enable voltage | VEN | V | VEE | – | VEE+0.8 | – | |||
| Transmit fault assert voltage | VFA | V | 2.2 | – | VCCHOST | – | |||
| Transmitfault de-assert voltage | VFDA | V | VEE | – | VEE+0.4 | – | |||
| Receiver | |||||||||
| Single ended data output swing | VOD | mVp-p | 200 | – | 450 | – | |||
| LOS fault | VLOSFT | V | 2.2 | – | VccHOST | – | |||
| LOS normal | VLOSNR | V | VEE | – | Vee+0.4 | – | |||
| Optical Characteristics | |||||||||
| Parameter | Symbol | Unit | Min. | Typ. | Max | Notes | |||
| Transmitter | |||||||||
| Center wavelength range | λ | nm | 1320 | – | 1340 | Downstream | |||
| – | – | 1280 | Upstream | ||||||
| Spectral width | -20dB | – | nm | – | – | 1 | – | |||
| Side mode suppression ratio | SMSR | dB | 30 | – | – | – | |||
| Average launch power | PAVG | dBm | 0 | – | 6 | – | |||
| OMA launch power | POMA | dBm | -2 | – | – | – | |||
| Transmitter and dispersion penalty 25G | BER=5E-5 | TDP | dB | – | – | 4 | – | |||
| Average launch power of OFF transmitter | POFF | dBm | – | – | -30 | – | |||
| Extinction ratio | ER | dB | 3.5 | – | – | – | |||
| RIN20OMA | RIN | dB/Hz | – | – | -130 | – | |||
| Optical return loss tolerance | – | dB | – | – | 20 | – | |||
| Mask margin | – | % | 5 | – | – | 1 | |||
| Receiver | |||||||||
| Center wavelength | λr | nm | 1260 | 1270 | 1280 | Downstream | |||
| 1320 | 1330 | 1340 | Upstream | ||||||
| Overload | – | dBm | 2.5 | – |
–
|
– | |||
| OMA receiver sensitivity up to 25G 5E-5 | POMA | dBm | – | – | -14 | – | |||
| LOS de-assert | LOSA | dBm | -30 |
–
|
– | – | |||
| Los assert | LOSD | dBm |
–
|
–
|
-17 | – | |||
| Los hysteresis | – | dB | 0.5 |
–
|
– | – | |||
| Note 1: Template: {0.31, 0.40, 0.45, 0.34, 0.38, 0.40}, Hit Ratio: 5E-5 | |||||||||
PIN FUNCTION DEFINITIONS
TRANSCEIVER PIN DESCRIPTIONS
| Pin No. | Symbol | Logic | Description | ||||||
| 1 | VeeT | – | Connected to signal ground on the host board. | ||||||
| 2 | TX fault | LVTTL output | Module transmitter fault output | ||||||
| 3 | TX disable | LVTTL input | Module transmitter disable control | ||||||
| 4 | SDA | LVTTL input/output | 2-wire serial interface data | ||||||
| 5 | SCL | LVTTL input/output | 2-wire serial interface clock | ||||||
| 6 | MOD_ABS | – | Module absent (connected to Module ground) | ||||||
| 7 | RS0 | LVTTL input | Rate select 0 (Rx): Low=CDR Bypass; high=CDR select | ||||||
| 8 | LOS | LVTTL output | Receiver loss of signal | ||||||
| 9 | RS1 | LVTTL input | Rate select 1 (Tx): Low=CDR Bypass; high=CDR select | ||||||
| 10,11,14 | VeeR | – | Connected to signal ground on the host board. | ||||||
| 12 | RD- | CML output | Receiver inverted data output, internally AC coupled and terminated. | ||||||
| 13 | RD+ | CML output | Receiver non-inverted data output, internally AC coupled and terminated. | ||||||
| 15 | VccR | – | Receiver power 3.3V supply | ||||||
| 16 | VccT | – | Transmitter power 3.3V supply | ||||||
| 18 | TD+ | CML input | Transmitter non-inverted data input, internally AC coupled and terminated. | ||||||
| 19 | TD- | CML input | Transmitter inverted data Input, internally AC coupled and terminated | ||||||
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CONFIGURATION INFORMATION
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