ONET1131EC
ZHCSFG0 –SEPTEMBER 2016
www.ti.com.cn
8 Application Information and Implementations
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The ONET1131EC is designed to be used in conjunction with a Transmitter Optical Sub-Assembly (TOSA). The
ONET1131EC, TOSA, microcontroller and power management circuitry will typically be used in an XFP or SFP+
10 Gbps optical transceiver. Figure 49 shows the ONET1131EC in differential mode of operation modulating a
differentially driven Mach Zehnder (MZ) modulator TOSA and Figure 51 and Figure 52 show the device in single-
ended output mode with an Electroabsorptive Modulated Laser (EML) TOSA. Figure 51 has the photodiode
cathode available and Figure 52 has the photodiode anode available.
8.2 Typical Application, Transmitter Differential Mode
VCC_T
VCC
4.7kꢁ
4.7kꢁ
4.7kꢁ
to10kꢁ
to10kꢁ
to10kꢁ
TX_FLT
TX_DIS
VCC
0.1ꢀF
0.1ꢀF
[h[
b/
/hat
Db5
LOL
0.01ꢀF
ahb.
Db5
5Lb+
5Lb-
Db5
t5
0.1ꢀF
0.1ꢀF
b/
b/
DIN+
DIN-
ONET1131EC
Db5
{/Y
{5!
SCK
SDA
ahbt
4.7kꢁ
to10kꢁ
4.7kꢁ
to10kꢁ
VCC
2.2nF
VDD
0.1ꢀF
VCC
0.1ꢀF
0.1ꢀF
0.1ꢀF
MZ MOD+
MZ MOD-
Copyright © 2016, Texas Instruments Incorporated
Figure 49. Typical Application Circuit in Differential Mode
36
Copyright © 2016, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
