Timing

Buffers

Buffers

Our clock buffers provide ultra-low additive jitter and low skew clock distribution. In addition to differential and LVCMOS buffers, we offer universal clock buffers that support any in/out signal format and integrate clock muxing and division to further simplify clock tree design.

Family Number of Outputs Output Format(s) Additive Jitter (ps) PCIe Compliant
Any Format Clock Buffers 2, 4, 6, 10 CML; HCSL; LVCMOS; LVDS; LVPECL, LVPECL; LVDS; CML; HCSL; LVCMOS 0.05 Yes
CMOS Clock Buffers 4, 5, 8, 9, 12 LVCMOS .10, 0.1, 0.15, > 1.0 Yes
HCSL Clock Buffers 4 HCSL 0.15 Yes
LVDS Clock Buffers 4, 6, 8, 10 LVDS 0.05, 0.15 Yes
LVPECL Clock Buffers 2, 4, 5, 6, 10 LVPECL 0.05, 0.15 Yes
PCIe Clock Buffers 2, 4, 6, 9 HCSL, HSCL 0.1, 0.2 Yes
PCle Clock Buffers/Zero Delay Buffers 6, 8, 12, 15, 19 HCSL 0.08 Yes
SSTL Clock Buffers 8 SSTL 0.15 Yes
TCXO Clock Buffers 3 LVCMOS > 1.0 No
Clocks

Clocks

Silicon Labs clocks generate any combination of output frequencies from any input frequency, simplifying clock synthesis and minimizing the number of timing components needed in a design. These clocks provide industry-leading jitter performance and functional integration and can be customized for any application. Silicon Labs also offers innovative PCI Express and LVCMOS clocks that simplify design and minimize power consumption in cost-sensitive applications.

 

Family Number of Outputs Phase Jitter (ps) Output Frequency Max (MHz) Output Formats
High Performance Jitter Attenuators 2, 4, 8, 10 0.09 350, 720, 1028 Differential; Single-Ended
Jitter Attenuators 1, 2, 4, 5, 8 0.3, 0.4, 0.5, 0.6 100, 150, 200, 243, 346, 350, 710, 711, 808, 1050, 1417 Differential; Single-Ended
Wireless Jitter Attenuators 12 0.065 1474.56 Differential; Single-Ended
High Performance Clock Generators 4, 10 0.09 350, 1028 Differential; Single-Ended
Clock Generators 4 1 200, 350, 710 Differential; Single-Ended
CMOS Clock Generators 2, 3, 8 2, 3.5, > 1.0, — 100, 133, 170, 200 Single-Ended
PCIe Clock Generators 1, 2, 4, 5, 6, 9 0.4, 1, 1.4, — 100 Differential
Coherent Optical Clocks 2, 4 0.1 2750 Differential; Single-Ended
Network Synchronizer Clocks 2, 7 0.15, 0.23, 0.3 125, 346, 350, 644, 718.5, 808 Differential; Single-Ended
Embedded Intel x86 Clock Generators 13, 16 > 1.0 166 Differential; Single-Ended
SONET Clocks 1, 4 0.3 622, 2488 Differential

 

Oscillators

Oscillators​​​​

Silicon Labs’ crystal oscillator (XO) and voltage controlled oscillator (VCXO) products provide fast and easy customization for any frequency up to 1.4 GHz with six digits of accuracy. Dual, quad and I2C programmable oscillator products replace multiple oscillators and muxes while improving reliability and performance.
Comprehensive High Performance Crystal Oscillator (XO) Portfolio

Family Part Number Customize Data Sheet Number of Frequencies Frequency Range (MHz) Jitter (ps RMS) Total Stability (ppm) Format Voltage (V) Temp (C) Size (mm)
High Precision Si530
Customize
download icon Single, OE Pin 1/2 10 to 1417 0.3 20, 31.5, 61.5 CMOS, LVPECL,
LVDS, CML
3.3,
2.5,
1.8
-40 to 85 5 x 7
Si531
Customize
download icon Single, OE Pin 1
Si532
Customize
download icon Dual, OE Pin 2
Si533
Customize
download icon Dual, OE Pin 1
Si534
Customize
download icon Quad, OE Pin 2
Si570
Customize
download icon Any I²C Programmable
Mid Grade Si590
Customize
download icon Single, OE Pin 1/2 10 to 810 0.5 20, 30,
50, 100
CMOS, LVPECL,
LVDS, CML
3.3,
2.5,
1.8
-40 to 85 5 x 7
Si591
Customize
download icon Single, OE Pin 1
Si598
Customize
download icon Any I²C Programmable
General Purpose Si510
Customize
download icon Single, OE Pin 1/2 0.1 to 250 0.8 30, 50, 100 CMOS, Dual CMOS, LVPECL, LVDS, HCSL 3.3,
2.5,
1.8
-40 to 85 5 x 7;
3.2 x 5
Si511
Customize
download icon Single, OE Pin 1
Si512
Customize
download icon Dual, OE Pin 2
Si513
Customize
download icon Dual, OE Pin 1
Si514
Customize
download icon Any I2C Programmable

Comprehensive High Performance Voltage-Controlled Crystal Oscillator (VCXO) Portfolio

Family Part Number Customize Data Sheet Number of Frequencies Frequency Range (MHz) Jitter (ps RMS) APR (ppm) Format Voltage (V) Temp (C) Size (mm)
High Precision Si550
Customize
download icon Single 10 to 1417 0.5 12 to 375 CMOS, LVPECL,
LVDS, CML
3.3,
2.5,
1.8
-40 to 85 5 x 7
Si552
Customize
download icon Dual
Si554
Customize
download icon Quad
Si571
Customize
download icon Any I²C
Programmable
Mid Grade Si595
Customize
download icon Single 10 to 810 0.7 10 to 810 CMOS, LVPECL,
LVDS, CML
3.3,
2.5,
1.8
-40 to 85 5 x 7
Si596
Customize
download icon Dual
Si597
Customize
download icon Quad
Si599
Customize
download icon Any I²C Programmable
General Purpose Si515
Customize
download icon Single 0.1 to 250 1.0 30 to 100 CMOS, Dual CMOS, LVPECL, LVDS, HCSL 3.3,
2.5
-40 to 85 5 x 7;
3.2 x 5
Si516
Customize
download icon Dual