TXN311110000000 Intel, TXN311110000000 Datasheet - Page 13

• Manufacturer Part Number: TXN311110000000
• Description: TXRX OPT SFP 2/1GBPS 850NM
• Manufacturer: Intel

Specifications of TXN311110000000

• Data Rate: 2.5Gbps
• Wavelength: 850nm
• Applications: Ethernet
• Voltage - Supply: 2.97 V ~ 3.63 V
• Connector Type: LC Duplex
• Mounting Type: SFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 859091

Datasheet
Table 9.
Plug Sequence: Pin Engagement Sequence During Hot Plugging (Sheet 2 of 2)
NOTES:
1. TX FAULT is an open collector/drain output that is pulled up with a 4.7 K - 10 K Ω resistor on the host
2. TX DISABLE is an input used to shut down the transmitter optical output. It is pulled up within the
3. MOD-DEF 0,1,2: These pins are the definition pins for the TXN31111 Optical Transceiver. They are pulled
4. RATE SELECT: This signal function not implemented in the TXN31111 Optical Transceiver. The
5. LOS (Loss of Signal) has an internal 8K pull-up resistor to V
6. RD-/+ are the differential receiver outputs. They are AC-coupled 100 Ω differential lines that are terminated
7. V
8. TD-/+: are the differential transmitter inputs. They are AC-coupled differential lines with 100 Ω differential
Pin
12
13
14
15
16
17
18
19
20
TXN31111 Optical Transceiver with a 4.7K - 10K Ω resistor. The states are as follows:
up with 4.7K - 10K Ω resistor on the host board. Use a pull-up voltage between 2.0V and V
TXN31111 Optical Transceiver is rate agile – that is, it meets the specifications for 1.0625 Gbps to 2.5
Gbps data rates without the use of a rate-select pin.
with 100 Ω (differential) at the user SerDes. The AC coupling is performed inside the TXN31111 Optical
Transceiver and is therefore not required on the host board.
“Recommended Operating Conditions” on page
current is listed in
Transceiver result in the inrush current listed in
termination inside the TXN31111 Optical Transceiver. The AC coupling is done inside the TXN31111
Optical Transceiver and is therefore not required on the host board.
•
•
•
•
•
•
•
•
•
•
board. Use a pull-up voltage between 2.0 V and V
cc
R and V
Transceiver is present.
(as defined by the standard in use).
Low: Indicates normal operation. In the low state, the output is pulled to < 0.8 V.
High: Indicates a laser fault.
Low (0 - 0.6V): Transmitter Enabled
(>0.8, <2.0V): Undefined
High (2.0 - 3.465V): Transmitter Disabled
MOD-DEF 0 is grounded by the TXN31111 Optical Transceiver to indicate the TXN31111 Optical
MOD-DEF 1 is the clock line of a two-wire serial interface for serial ID.
MOD-DEF 2 is the data line of a two-wire serial interface for serial ID.
When low, this output indicates normal operation. In the low state, the output is pulled to < 0.8V.
When high, this output indicates the received optical power is below the worst-case receiver sensitivity
Name
V
cc
V
V
V
RD+
V
TD+
RD-
TD-
ee
cc
ee
ee
cc
T: are the receiver and transmitter power supplies. Their values, which are listed in
Intel
R
R
T
T
T
Table 3, “Electrical Characteristics” on page
®
TXN31111 Tri-Rate 850 nm Optical Transceiver
Order Number: 280049, Revision: 006
Inverted Received Data
Non-Inverted Received
Non-inverted Data In
Transmitter Ground
Transmitter Ground
Transmitter Power
Receiver Ground
Receiver Power
Inverted Data In
Function
Data out
out
Table 3, “Electrical Characteristics” on page
7, are defined at the SFP connector pin. Maximum supply
cc
Intel
Sequence
T, R+0.3 V.
Plug
®
3
3
1
2
2
1
3
3
1
TXN31111 Tri-Rate 850 nm Optical Transceiver
cc
8. Hot plugging of the TXN31111 Optical
R. While LOS is defined per the SFP MSA,
7
7
6
3.3 V +/- 10% (See also Note 8.)
3.3 V +/- 10% (See also Note 8.)
6
9
9
6
Notes
cc
8.
T, R + 0.3V.
20-Sept-2006
Table 2,
13