SI53340-45 Datasheet, PDF (1/38 Pages) Silicon Laboratories – Multiple configuration options

Si53340-45 Data Sheet
Low-Jitter LVDS Fanout Clock Buffers with up to 10 LVDS Out-
puts from Any-Format Input and Wide Frequency Range from dc
up to 1250 MHz
The Si53340-45 family of LVDS fanout buffers is ideal for clock/data distribution and re-
dundant clocking applications. These devices feature typical ultra-low jitter of 50 fs and
operate over a wide frequency range from dc to 1250 MHz. Built-in LDOs deliver high
PSRR performance and reduces the need for external components simplifying low jitter
clock distribution in noisy environments.
They are available in multiple configurations and offer a selectable input clock using a
2:1 input mux. Other features include independent output enable and built-in format
translation. These buffers can be paired with the Si534x clocks and Si5xx oscillators to
deliver end-to-end clock tree performance.
KEY FEATURES
• Ultra-low additive jitter: 50 fs rms
• Built-in LDOs for high PSRR performance
• Up to 10 LVDS Outputs
• Any-format Inputs (LVPECL, Low-Power
LVPECL, LVDS, CML, HCSL, LVCMOS)
• Wide frequency range: dc to 1250 MHz
• Output Enable option
• Multiple configuration options
• 2:1 Input Mux
• RoHS compliant, Pb-free
• Temperature range: –40 to +85 °C
CLK0*
CLK1*
CLK_SEL
VDD
4
Power Supply
Filtering
0
3
3
1
4 Outputs Si53340/41
VDDOA
OEAb
3 Outputs
3 Outputs
OEBb
VDDOB
Si53342/43
10
10 Outputs Si53344/45
*Si53341/43/45 require Single-ended Inputs
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