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HFBR-57E0LZ-YYY Datasheet(PDF) 6 Page - AVAGO TECHNOLOGIES LIMITED |
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HFBR-57E0LZ-YYY Datasheet(HTML) 6 Page - AVAGO TECHNOLOGIES LIMITED |
6 / 15 page 6 Table 2. Pin Description Pin Name Function/Description MSA Notes 1VEET Transmitter Ground 2NC NC 1 3 Tx Disable Transmitter Disable- Module disables on high or open 4 MOD-DEF2 Module Definition 2 - Two Wire Serial ID Interface 2 5 MOD-DEF1 Module Definition 1 - Two Wire Serial ID Interface 2 6 MOD-DEF0 Module Definition 0 - grounded in module 2 7NC NC 8 LOS Loss of Signal - high indicates loss of signal 3 9VEER Receiver Ground 10 VEER Receiver Ground 11 VEER Receiver Ground 12 RD- Inverse Received Data Out 4 13 RD+ Received Data Out 4 14 VEER Receiver Ground 15 VCCR Receiver Power -3.3 V ± 10% 5 16 VCCT Transmitter Power -3.3 V ± 10% 5 17 VEET Transmitter Ground 18 TD+ Transmitter Data In 6 19 TD- Inverse Transmitter Data In 6 20 VEET Transmitter Ground Notes: 1. Pin 2 connected to internal ground. 2. Mod-Def 0, 1, 2. are the module definition pins. They should be pulled up with a 4.7 K - 10 K : resistor on the host board to a supply less than VCCT +0.3 V or VCCR +0.3 V. Mod-Def 0 is grounded by the module to indicate that the module is present. Mod-Def 1 is clock line of two wire serial interface for optional serial ID. Mod-Def 2 is data line of two wire serial interface for optional serial ID. 3. LOS (Loss of Signal) is an open collector/drain output which should be pulled up externally with a 4.7 - 10 K : resistor on the host board to a supply < VCCT, R +0.3 V. When high, this output indicates the received optical power is below the worst case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to <0.8 V. 4. RD-/+: These are the differential receiver outputs. They are ac coupled 100 : differential lines which should be terminated with 100 : dif- ferential at the SERDES. The ac coupling is done inside the module and is thus not required on the host board. The voltage swing on these lines will be between 400 and 2000 mV differential (200 - 1000 mV single ended) when properly terminated. 5. VCCR and VCCT are the receiver and transmitter power supplies. They are defined as 2.97 - 3.63 V at the SFP connector pin. The maximum supply current is 230 mA and the associated in-rush current will typically be no more than 30 mA above steady state after 500 nanoseconds. 6. TD-/+: These are the differential transmitter inputs. They are ac coupled differential lines with 100 : differential termination inside the module. The ac coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 400 - 2000 mV (200 - 1000 mV single ended), though it is recommended that values between 400 and 1200 mV differential (200 - 600 mV single ended) be used for best EMI performance. These levels are compatible with CML and LVPECL voltage swings. |
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