SI5010-BMR Silicon Laboratories Inc, SI5010-BMR Datasheet - Page 12

• Manufacturer Part Number: SI5010-BMR
• Description: Telecom ICs SONET/SDH 2.5 V OC-3/12 STM-1/4
• Manufacturer: Silicon Laboratories Inc
• Type: OC-12/3, STM-4/1 Sonet/SDH Clock and Data Recovery Icr

Specifications of SI5010-BMR

• Operating Supply Voltage: 2.375 V to 2.625 V
• Supply Current: 124 mA
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Operating Frequency: 19.44 MHz
• Package / Case: MLP-20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Si5010
4.10. Differential Input Circuitry
The Si5010 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 Figure 6. In applications where direct dc coupling is
possible, the 0.1 µF capacitors may be omitted. The DIN and REFCLK input amplifiers require an input signal with
a minimum differential peak-to-peak voltage listed in Table 2 on page 6.
12
Differential
Driver
Clock
source
Clock
source
Figure 7. Single-Ended Input Termination for REFCLK (AC Coupled)
Figure 8. Single-Ended Input Termination for DIN (AC Coupled)
Figure 6. Input Termination for DIN and REFCLK (AC Coupled)
0.1 µF
0.1 µF
Zo = 50 ¬
Zo = 50 ¬
0.1 μF
0.1 μF
Zo = 50 Ω
Zo = 50 Ω
REFCLK+
REFCLK–
0.1 μF
0.1 μF
100 Ω
100 Ω
DIN+,
DIN–,
Rev. 1.4
2.5 k¬
10 k¬
REFCLK +
REFCLK –
DIN +
DIN –
Si5010
2.5 k¬
2.5 kΩ
2.5 kΩ
10 k¬
10 kΩ
10 kΩ
VDD
GND
Si5010
Si5010
GND
GND
VDD
VDD
2.5 kΩ
2.5 kΩ
10 kΩ
10 kΩ
102 ¬
102 Ω
102 Ω