SFF光模块各针脚的定义
发布时间:2016-07-25 点击数:790
一位客户需要开一款产品,用到SFF光模块。在设计阶段,向我咨询SFF的针脚定义。
具体问题是:我公司现在要生产ONU,样板在光电转换部分采用SFF光模块。现需要设计电路,能否为我们提供一下SFF光模块的每个管脚的定义。
解答:目前常用的SFF光光模块有2*5和2*10。ONU使用较多的是2*10.本文就将这20个针脚的定义分别表述一下,Pin Symbol Name/Description Ref.
1 NC Not Connected
2 VEER Receiver Ground
3 VEER Receiver Ground
4 NC Not Connected
5 NC Not Connected
6 VEER Receiver Ground
7 VCCR Receiver Power Supply
8 SD Receiver Signal Detect 1
9 RD- Inverted Receiver Data Output 2
10 RD+ Non- inverted Receiver Data Output 2
11 VCCT Transmitter Power Supply
12 VEET Transmitter Signal Ground
13 TX_BURST Transmitter Burst Control 3
14 TD+ Non- inverted Transmitter Data Output 4
15 TD- Inverted Transmitter Data Output 4
16 VEET Transmitter Ground
17 SCL I2C Serial Clock (LVTTL)
18 SDA I2C Serial Data (LVTTL)
19 Tx_Fault Transmitter Fault (LVTTL)
20 VEET Transmitter Signal Ground
Note1: LVTTL logic output, with internal 10kΩpull-up resister.
Note2: LVPECL logic output, internally AC-coupled.
Note3: LVTTL logic output.
Note4: LVPECL logic input, internally terminated and AC-coupled.
希望在如果在设计方面还有不清楚的地方可以向我咨询。
总结:在任何产品的设计阶段,尤其电路设计的时候。必须对功能模块的相应参数充分了解,作用对产品的研发的成功率与成本都有很大帮助。
具体问题是:我公司现在要生产ONU,样板在光电转换部分采用SFF光模块。现需要设计电路,能否为我们提供一下SFF光模块的每个管脚的定义。
解答:目前常用的SFF光光模块有2*5和2*10。ONU使用较多的是2*10.本文就将这20个针脚的定义分别表述一下,Pin Symbol Name/Description Ref.
1 NC Not Connected
2 VEER Receiver Ground
3 VEER Receiver Ground
4 NC Not Connected
5 NC Not Connected
6 VEER Receiver Ground
7 VCCR Receiver Power Supply
8 SD Receiver Signal Detect 1
9 RD- Inverted Receiver Data Output 2
10 RD+ Non- inverted Receiver Data Output 2
11 VCCT Transmitter Power Supply
12 VEET Transmitter Signal Ground
13 TX_BURST Transmitter Burst Control 3
14 TD+ Non- inverted Transmitter Data Output 4
15 TD- Inverted Transmitter Data Output 4
16 VEET Transmitter Ground
17 SCL I2C Serial Clock (LVTTL)
18 SDA I2C Serial Data (LVTTL)
19 Tx_Fault Transmitter Fault (LVTTL)
20 VEET Transmitter Signal Ground
Note1: LVTTL logic output, with internal 10kΩpull-up resister.
Note2: LVPECL logic output, internally AC-coupled.
Note3: LVTTL logic output.
Note4: LVPECL logic input, internally terminated and AC-coupled.
希望在如果在设计方面还有不清楚的地方可以向我咨询。
总结:在任何产品的设计阶段,尤其电路设计的时候。必须对功能模块的相应参数充分了解,作用对产品的研发的成功率与成本都有很大帮助。
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