SI5020-B-GM Silicon Laboratories Inc, SI5020-B-GM Datasheet - Page 15

• Manufacturer Part Number: SI5020-B-GM
• Description: IC CLK DATA REC SONET/SDH 20-QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI5020-B-GM

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.12. Differential Output Circuitry
The Si5020 utilizes a current mode logic (CML) architecture to output both the recovered clock (CLKOUT) and data
(DOUT). An example of output termination with ac coupling is shown in Figure 9. In applications in which direct dc
coupling is possible, the 0.1 μF capacitors may be omitted. The differential peak-to-peak voltage swing of the CML
architecture is listed in Table 2 on page 6.
Figure 9. Output Termination for DOUT and CLKOUT (AC Coupled)
100
100
Si5020
Ω
Ω
V DD
V DD
CLKOUT +
CLKOUT –
DOUT +,
DOUT –,
Rev. 1.5
0.1
0.1
μ
μ
F
F
Z o = 50
Z o = 50
Ω
Ω
50
50
Ω
Ω
V DD
V DD
Si5020
15