产品概述
CSFP-B4312-20Dxx 是一款1.25Gb/s CSFP (Compact SFP) BIDI Transceiver，采用1490nm DFB激光器发射和1310nm PIN探测器接收，支持最长20km的单模光纤传输。该产品将两个双向收发器集成在一个SFP封装中，符合CSFP MSA 2.0 (Option 2)和SFP MSA SFF-8074i标准，支持热插拔，适用于千兆以太网和光纤通道等应用场景。
产品特点 (Product Features)
- 两个双向收发器集成于一个SFP封装 (Two Bi-Directional transceivers in one SFP package)
- 最高支持1.25Gb/s数据链路 (Up to 1.25Gb/s data links)
- 双工LC连接器 (Duplex LC connector)
- 热插拔SFP封装 (Hot-pluggable SFP footprint)
- 1490nm DFB激光发射器 (1490nm DFB laser transmitter)
- 符合RoHS标准无铅 (RoHS compliant and Lead Free)
- 9/125um单模光纤最长20km传输 (Up to 20Km on 9/125um SMF)
- 金属外壳降低EMI (Metal enclosure for lower EMI)
- 单+3.3V电源供电 (Single +3.3V power supply)
- 符合CSFP MSA 2.0 (Option 2)标准 (Compliant with CSFP MSA 2.0)
- 商用和工业级工作温度可选 (Commercial and industrial operating temperature optional)
- 符合SFP MSA SFF-8074i标准 (SFP MSA SFF-8074i Compliant)
工作温度：
- 商用级 (Standard)：0 ~ +70°C
- 工业级 (Industrial)：-40 ~ +85°C
应用场景 (Applications)
- 千兆以太网 (Gigabit Ethernet)
- 光纤通道 (Fibre Channel)
合规性 (Regulatory Compliance)
- ESD (电气引脚)：符合MIL-STD-883 Method 3015
- ESD (LC插座)：符合IEC 61000-4-2
- 电磁抗扰度：符合IEC 61000-4-3
- EMI：符合FCC Part 15 Class B、EN55022 Class B (CISPR 22B)、VCCI Class B
- 激光安全：符合FDA 21CFR 1040.10和1040.11、EN60950、EN (IEC) 60825-1,2
- RoHS：符合RoHS 2 (2011/65/EU)
绝对最大额定值 (Absolute Maximum Ratings)
| Parameter | Symbol | Min | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | Vcc | -0.5 | +4.0 | V |
| Storage Temperature | Ts | -40 | +85 | °C |
| Operating Humidity | RH | 0 | 85 | % |
推荐工作条件 (Recommended Operating Conditions)
| Parameter | Sub-Parameter | Symbol | Min | Typical | Max | Unit |
|---|---|---|---|---|---|---|
| Operating Case Temperature | Standard | Tc | 0 | +70 | °C | |
| Operating Case Temperature | Industrial | Tc | -40 | +85 | °C | |
| Power Supply Voltage | Power Supply Voltage | Vcc | 3.13 | 3.30 | 3.47 | V |
| Power Supply Current | Power Supply Current | Icc | 500 | mA | ||
| Data Rate | Data Rate | 1.25 | Gbps | |||
| 9/125um G.652 SMF | 9/125um G.652 SMF | Lmax | 20 | km |
光电特性 (Optical and Electrical Characteristics)
| Parameter | Symbol | Min | Typical | Max | Unit | Notes |
|---|---|---|---|---|---|---|
| Transmitter | ||||||
| Centre Wavelength | λc | 1470 | 1490 | 1510 | nm | |
| Spectral Width (RMS) | Δλ | – | – | 1 | nm | |
| Side-Mode Suppression Ratio | SMSR | 30 | – | – | dB | |
| Average Output Power | Pout | -9 | -3 | dBm | 1 | |
| Extinction Ratio | ER | 6.0 | – | – | dB | |
| Optical Rise / Fall Time | tr / tf | – | – | 260 | ps | 2 |
| Receiver | ||||||
| Centre Wavelength | λc | 1260 | 1310 | 1360 | nm | |
| Receiver Sensitivity | – | – | -22.5 | dBm | 3, 4 | |
| Receiver Overload | -3 | – | – | dBm | ||
| LOS De-Assert | LOSD | – | – | -25 | dBm | |
| LOS Assert | LOSA | -40 | – | – | dBm | |
| LOS Hysteresis | – | 0.5 | – | 5 | dB | |
| LOS | High | 2.0 | Vcc | V | ||
| LOS | Low | 0.8 | V |
Notes:
- Class 1 Laser Safety.
- Unfiltered, 20-80%. Complies with Gigabit Ethernet eye masks when filtered.
- Measured with conformance signals defined in FC-PI-2 Rev. 10.0 specifications.
- Measured with PRBS 27-1 at 10-12 BER
数字诊断 (Diagnostics)
| Parameter | Range | Unit | Accuracy | Calibration |
|---|---|---|---|---|
| Temperature | 0 to +70 | °C | ±3°C | Internal |
| Temperature | -40 to +85 | °C | ±3°C | Internal |
| Voltage | 2.97 to 3.63 | V | ±3% | Internal |
| Bias Current | 0 to 100 | mA | ±10% | Internal |
| TX Power | -9 to -3 | dBm | ±3dB | Internal |
| RX Power | -22.5 to -3 | dBm | ±3dB | Internal |
EEPROM信息 (EEPROM Information)
2通道Compact SFP (Option 2)的内存映射如下图所示。A0h (1010000X)和B0h (1011000X)分别为两个通道的Serial ID内存地址，支持数字诊断监控功能。
引脚定义 (Pin Descriptions)
| Pin | Signal Name | Description |
|---|---|---|
| 1 | VeeT | Transmitter Ground (Common with Receiver Ground) |
| 2 | TX Fault | Transmitter Fault |
| 3 | TX1_Disable | Transmitter Disable of Ch1; Turns off transmitter laser output of Ch1 |
| 4 | MOD_DEF(2) | 2-wire Serial Interface Data Line (SDA) |
| 5 | MOD_DEF(1) | 2-wire Serial Interface Clock Line (SCL) |
| 6 | TD2- | Inverted Transmit Data Input of Ch2 |
| 7 | TD2+ | Transmit Data Input of Ch2 |
| 8 | LOS1 | Loss of signal for Ch1 |
| 9 | RD2+ | Received Data Output of Ch2 |
| 10 | RD2- | Inverted Received Data Output of Ch2 |
| 11 | VeeT | Transmitter Ground |
| 12 | RD1- | Inverted Received Data Output of Ch1 |
| 13 | RD1+ | Received Data Output of Ch1 |
| 14 | LOS2 | Loss of signal for Ch2 |
| 15 | VccR | Receiver Power Supply |
| 16 | VccT | Transmitter Power Supply |
| 17 | Tx2_Disable | Transmitter Disable of Ch2; Turns off transmitter laser output of Ch2 |
| 18 | TD1+ | Transmit Data Input of Ch1 |
| 19 | TD1- | Inverted Transmit Data Input of Ch1 |
| 20 | VeeT | Transmitter Ground |
Notes: TX_Fault is internally OR output for TX fault conditions in either Channel 1 or Channel 2. In order to determine which channel is at fault, the host must read the diagnostic status flags in the serial memory.
推荐接口电路 (Recommended Interface Circuit)
机械尺寸 (Mechanical Dimensions)
订购信息 (Ordering Information)
| Part Number | Product Description |
|---|---|
| CSFP-B4312-20D | 1490T/1310R 1.25Gbps LC 20km 0°C~+70°C with DDM |
| CSFP-B4312-20DI | 1490T/1310R 1.25Gbps LC 20km -40°C~+85°C with DDM |
公司信息
| 项目 | 内容 |
|---|---|
| 公司名 | 北亿纤通 | F-toneNetworks |
| 地区 | 中国四川天府新区 |
| 服务区域 | 全球 |
| 企业电话 | 028-85255257 |
| 企业传真 | 028-85977702 |
| 企业手机 | 19081343401 |
| Site | https://www.f-tone.com |
| 人事部 | hr@f-tone.com |
| 市场部 | sales@f-tone.com |
| 技术支持 | support@f-tone.com |
本产品为CSFP-B4312-20Dxx CSFP BIDI光收发器产品线，详细信息，请联系我们的销售人员，谢谢！
Important Notice
Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.
The publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.
