SI5017-D-GM Silicon Laboratories Inc, SI5017-D-GM Datasheet - Page 16

• Manufacturer Part Number: SI5017-D-GM
• Description: IC CLOCK/DATA RECOVERY 28MLP
• Manufacturer: Silicon Laboratories Inc
• Type: Clock and Data Recovery (CDR)r

Specifications of SI5017-D-GM

• Input: Differential
• Output: CML
• Frequency - Max: 2.7GHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Frequency-max: 2.7GHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 336-1279

Si5017
4.17. Differential Input Circuitry
The Si5017 provides differential inputs for both the high-speed data (DIN) and the reference clock (REFCLK)
inputs. An example termination for these inputs is shown in Figures 10 and 11, respectively. In applications where
direct dc coupling is possible, the 0.1 µF capacitors may be omitted. (LOS operation is only guaranteed when ac
coupled.) The data input limiting amplifier requires an input signal with a differential peak-to-peak voltage as
specified in Table 2 on page 7 to ensure a BER of at least 10
voltage requirement is also specified in Table 2.
16
Clock source
TIA
Figure 10. Input Termination for REFCLK (ac coupled)
Figure 11. Input Termination for DIN (ac coupled)
0.1 F
0.1 F
0.1 F
0.1 F
Zo = 50 
Zo = 50 
Zo = 50 
Zo = 50 
100 
RFCLK +
RFCLK –
DIN+
DIN–
Rev. 1.5
2.5 k
10 k
50 
50 
Si5017
Si5017
2.5 V (±5%)
–12
GND
2.5 k
10 k
. The REFCLK input differential peak-to-peak
2.5 V (±5%)
GND
5 k
7.5 k