ET4202-RJ45 EDGE-CORE | Alldatasheet
Document overview
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Technical content
1000BASE-T Copper SFP Transceiver ET4202-RJ45 Product Features ■ Hot-pluggable SFP footprint ■ Low power dissipation ■ Compact RJ-45 connector assembly ■ Detailed product information in EEPROM ■ +3.3V single power supply ■ 1000 BASE-T operation in host systems with SGMII interface ■ Compliant with SFP MSA ■ Compliant with IEEE Std 802.3™-2002 ■ Commercial: 0°C to +70°C Descriptions The 1000BASE-T copper SFP transceiver is a high-performance, cost-effective module, compliant with Gigabit Ethernet and 1000BASE-T standards, as specified in IEEE 802. 3-2002 and IEEE 802.3ab, which supports 1000Mb/s data rate up to 100 meters reach over twisted-pair Category 5 cable.
Ordering Information
Part Number Transmitter Output Power Sensitivity Reach Temp DDM RoHS ET4202-RJ45 100 m 0~ 70 °C Available Compliant
20 VeeT
19 TD-
18 TD+
17 VeeT
16 VccT
15 VccR
14 VeeR
13 RD+
12 RD-
11 VeeR
(as viewed thru top of board) Top of Board
1 VeeT
2 TxFault
3 TxDisable
4 MOD-DEF (2)
5 MOD-DEF (1)
6 MOD-DEF (0)
7 Rate Select
8 LOS
9 VeeR
10 VeeR
Pin out of Connector Block on Host Board
PinS ignal Name Description Notes 1V eeT Module Transmitter Ground 1 2 Tx_Fault Transmitter Fault. Not supported, Grounded in module 2
3 Tx_Disable Transmitter Disable - Module disables on high or open 3
4 MOD_DEF(2) Module Definition 2. Data line for Serial ID. 5 MOD_DEF(1) Module Definition 1. Clock line for Serial ID.
6 MOD_DEF(0) Module Absent, connected to VeeT or VeeR in the module
7 Rate Select No connection
8 Rx_LOS Loss of Signal - High Indicates Loss of Signal 2
9V eeR Module Receiver Ground 1
10 VeeR Module Receiver Ground 1
11 VeeR Module Receiver Ground 1
12 RD- Receiver Inverted Data Output 5
13 RD+ Receiver Non-Inverted Data Output 5
14 VeeR Module Receiver Ground 1
15 VccR Module Receiver 3.3 V Supply 4 16 VccT Module Transmitter 3.3 V Supply 4
17 VeeT Module Transmitter Ground 1
18 TD+ Transmitter Non-Inverted Data Input 6
19 TD- Transmitter Inverted Data Input 6
20 VeeT Module Transmitter Ground 1
Notes: 1. The module signal ground contacts, VeeR and VeeT, should be isolated from the module case. 2. TX Fault is not used and is always tied to ground. 3 TX Disable as described in the MSA is not applicable to the 1000BASE-T module, but is used for convenience as an input to reset the internal ASIC. This pin is pulled up within the module with a 4.7kΩ to 10kΩ resistor. Low (0–0.8 V): Transceiver on Between (0.8 V and 2.0 V): Undefined High (2.0–3.465 V): Transceiver in reset disable state Open: Transceiver in reset disable state 4. VCCR and VCCT are the receiver and transmitter power supplies. They are defined as 3.3 V ± 5% at the SFP connector pin. The maximum supply current is about 300mA and the associated in-rush current will typically be no more than 30 mA above steady state aſter 500 nanoseconds. 5. RD-/+: These are the differential receiver outputs. They are ac coupled 100 ohm differential lines which should be terminated with 100 ohm differential at the user 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 600 and 2000 mV differential when properly terminated. These levels are compatible with CML and LVPECL voltage swings. 6. TD-/+: These are the differential transmitter inputs. They are ac coupled differential lines with 100 ohm 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 500 – 2400 mV, though it is recommended that values between 500 and 1200 mV differential (250 – 600 mV single ended) be used for best EMI performance. These levels are compatible with CML and LVPECL voltage swings.
Mechanical Specifications
Electrical Characteristics
Parameter Symbol Minimum Typical Maximum Unit Notes Supply Current Is 300 350 Ω Input Voltage Vcc 3.13 3.3 3.47 mV Maximum Voltage Vmax 3.6 Cable Length Standard Cable Reach Host Port 1000BASE-T CAT5 100 m SGMII
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