LMK00725 Texas instruments

LMK00725

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LMK00725

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Описание

The LMK00725 is a low skew, high-performance clock fanout buffer which can distribute up to five 3.3V LVPECL outputs from one of two inputs, which can accept differential or single-ended inputs. The clock enable input is synchronized internally to eliminate runt or glitch pulses on the outputs when the clock enable pin is asserted or de-asserted. The low additive jitter and phase noise floor and ensured output and part-to-part skew characteristics make the LMK00725 ideal for applications demanding high performance and repeatability.

Five 3.3V Differential LVPECL Outputs
- Additive Jitter: 43 fs RMS (typ) @ 312.5 MHz
- Noise Floor (≥1 MHz offset):
  –158 dBc/Hz (typ) @ 312.5 MHz
- Output Frequency: 650 MHz (max)
- Output Skew: 35 ps (max)
- Part-to-Part Skew: 100 ps (max)
- Propagation Delay: 0.37 ns (max)
Two Differential Input Pairs (pin-selectable)
- CLKx, nCLK Input Pairs can accept LVPECL,
  LVDS, HCSL, SSTL, LVHSTL, or Single-Ended
  Signals
Synchronous Clock Enable
Power Supply: 3.3V ±5%
Package: 20-Lead TSSOP
Industrial Temperature Range: –40°C to +85°C

Function	Differential, Fanout
Additive RMS jitter (typ) (fs)	43
Output frequency (max) (MHz)	650
Number of outputs	5
Output supply voltage (V)	3.3
Core supply voltage (V)	3.3
Output skew (ps)	35
Features	Pin control
Operating temperature range (°C)	-40 to 85
Rating	Catalog
Output type	LVPECL
Input type	HCSL, LVCMOS, LVDS, LVPECL, LVTTL, SSTL