APPLICATIONS
l 25GBASE-LR 25G Ethernet
l CPRI 10
Compliance
l SFP MSA.
l IEEE802.3cc
l SFF-8472
l RoHS
Ordering information
|
Part No. |
Bit Rate (Gbps) |
Laser (nm) |
Distance |
Fiber Type |
DDMI |
Connector |
Temp |
|
ESJMLE31-K40C |
25.78125 |
1310 |
40km |
SMF |
YES |
LC |
0℃~+70℃ |
|
ESJMLE31-K40I |
25.78125 |
1310 |
40km |
SMF |
YES |
LC |
-40℃~+85℃ |
I. Pin Diagram
Pinout of Connector Block on Host Board
II. Pin Descriptions
|
Pin |
Symbol |
Name/Description |
Ref. |
|
1 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
1 |
|
2 |
TFAULT |
Transmitter Fault. |
2 |
|
3 |
TDIS |
Transmitter Disable. Laser output disabled on high or open. |
3 |
|
4 |
SDA |
2-wire Serial Interface Data Line |
4 |
|
5 |
SCL |
2-wire Serial Interface Clock Line |
4 |
|
6 |
MOD_ABS |
Module Absent. Grounded within the module |
4 |
|
7 |
RS0 |
No connection required |
|
|
8 |
LOS |
Loss of Signal indication. Logic “0” indicates normal operation. |
5 |
|
9 |
RS1 |
No connection required |
|
|
10 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
1 |
|
11 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
1 |
|
12 |
RD- |
Receiver Inverted DATA out.AC Coupled |
|
|
13 |
RD+ |
Receiver Non-inverted DATA out.AC Coupled |
|
|
14 |
VEER |
Receiver Ground (Common with Transmitter Ground) |
1 |
|
15 |
VCCR |
Receiver Power Supply |
|
|
16 |
VCCT |
Transmitter Power Supply |
|
|
17 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
1 |
|
18 |
TD+ |
Transmitter Non-Inverted DATA in. AC Coupled. |
|
|
19 |
TD- |
Transmitter Inverted DATA in. AC Coupled. |
|
|
20 |
VEET |
Transmitter Ground (Common with Receiver Ground) |
1 |
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. TFAULT is an open collector/drain output, which is pulled up with a 4.7kΩ – 10kΩ resistor on the host board, but is grounded inside the SFP+ cable plug.
3. Laser output disabled on TDIS >2.0V or open, enabled on TDIS <0.8V.
4. Should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. MOD_ABS pull line low to indicate module is plugged in.
5. LOS is open collector output. Should be pulled up with 4.7kΩ – 10kΩ on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
III. Absolute Maximum Ratings
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Ref. |
|
Maximum Supply Voltage |
Vcc |
-0.5 |
|
3.6 |
V |
|
|
Storage Temperature |
TS |
-40 |
|
85 |
℃ |
|
|
Relative Humidity |
RH |
0 |
|
85 |
% |
|
IV. Optical Characteristics
|
Parameter |
Symbol |
Min. |
Typ. |
Max. |
Unit |
Remark |
|
Transmitter |
||||||
|
Signaling rate(range) |
Sr |
|
25.7825±100ppm |
|
GBd |
|
|
Center Wavelength |
λc |
1295 |
|
1310 |
nm |
|
|
Spectral Width(-20dB) |
Pm |
|
|
1 |
nm |
|
|
Average Output Power |
Pavg |
-3 |
|
6 |
dBm |
|
|
Extinction Ratio |
ER |
4 |
|
|
dB |
|
|
Side Mode Suppression Ratio |
SMSR |
30 |
|
|
dB |
|
|
Transmitter OFF Output Power |
POff |
|
|
-30 |
dBm |
|
|
Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3} Hit ratio 5×10-5 hits per sample. |
|
{0.31, 0.4, 0.45, 0.34, 0.38, 0.4} |
|
|
||
|
Receiver |
||||||
|
Signaling rate(range) |
Sr |
|
25.7825±100ppm |
|
GBd |
|
|
Center Wavelength |
λc |
1295 |
|
1325 |
nm |
|
|
Receiver Sensitivity(OMA) |
|
|
|
-19 |
dBm |
1 |
|
Receiver Reflectance |
Rfl |
|
|
-26 |
dBm |
|
|
Loss of Signal Assert |
PA |
-35 |
|
|
dBm |
|
|
Loss of Signal De-assert |
PD |
|
|
-20 |
dBm |
|
|
LOS Hysteresis |
PD- PA |
0.5 |
|
|
dB |
|
Note:
1. Hit ratio 5x10-5.
V. Digital Diagnostic Memory Map
VI. Digital Diagnostic Specifications
|
Parameter |
Unit |
Accuracy |
|
Case Temperature |
℃ |
±3 |
|
Supply Voltage |
V |
±3% |
|
Tx Bias Current |
mA |
±10% |
|
Tx Optical Power |
dB |
±3 |
|
Rx Optical Power |
dB |
±3 |
VII. Electrical Interface Characteristics
|
Parameter |
Symbol |
Min |
Type |
Max |
Unit |
Ref. |
|
Supply Voltage |
Vcc |
3.135 |
3.3 |
3.465 |
V |
|
|
Supply Current |
Icc |
|
|
500 |
mA |
Commercial |
|
|
|
550 |
mA |
Industrial |
||
|
Transmitter |
||||||
|
Input differential impedance |
Rin |
|
100 |
|
|
1 |
|
Differential data input swing |
Vin, pp |
100 |
|
800 |
mV |
|
|
Transmit Disable Voltage |
VD |
2 |
|
VCC |
V |
|
|
Transmit Enable Voltage |
VEN |
Vee |
|
Vee+0.8 |
V |
|
|
Receiver |
||||||
|
Differential data output swing |
Vout, pp |
100 |
|
800 |
mV |
2 |
|
LOS Fault |
VLOS_fault |
2 |
|
VccHOST |
V |
3 |
|
LOS Normal |
VLOS_norm |
Vee |
|
Vee+0.8 |
V |
3 |
Notes:
1. Connected directly to TX data input pins.AC coupling from pins into laser driver IC.
2. Into 100Ω differential termination.
3. LOS is an open collector output. Should be pulled up with 4.7kΩ – 10kΩ on the host board. Normal operation is logic 0; loss of signal is logic 1. Maximum pull-up voltage is 5.5V.
VIII.Mechanical Specifications (Unit: mm)
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Address : East of 2F, Tianmen Optical Valley Science Park,Qiaoxiang Economic development area,Tianmen, Hubei Province.
Tel : 15012662571
Email : chris.peng@talptech.com
Skype : 15012662571
