Clock Buffer 7-OUT 36-Pin WQFN T/R

The LMK00306 is a 3-GHz, 6-output differential fanout buffer intended for high-frequency, low-jitter clock/data distribution and level translation. The input clock can be selected from two universal inputs or one crystal input. The selected input clock is distributed to two banks of 3 differential outputs and one LVCMOS output. Both differential output banks can be independently configured as LVPECL, LVDS, or HCSL drivers, or disabled. The LVCMOS output has a synchronous enable input for runt-pulse-free operation when enabled or disabled. The LMK00306 operates from a 3.3 V core supply and 3 independent 3.3 V/2.5 V output supplies.The LMK00306 provides high performance, versatility, and power efficiency, making it ideal for replacing fixed-output buffer devices while increasing timing margin in the system.

3:1 InputMultiplexer

• Two Universal Inputs Operate up to 3.1 GHz and Accept
  LVPECL, LVDS, CML, SSTL, HSTL, HCSL, or Single-Ended Clocks
• One Crystal Input Accepts a 10 to 40 MHz Crystal or
  Single-Ended Clock

Two Banks with 3 Differential Outputs Each

• LVPECL, LVDS, HCSL, or Hi-Z (Selectable Per Bank)
• LVPECL Additive Jitter with LMK03806 Clock Source at
  156.25 MHz:20 fs RMS (10 kHz – 1 MHz) 51 fs RMS
  (12 kHz – 20MHz)

High PSRR: –65 / –76 dBc
(LVPECL/LVDS) at 156.25 MHz

LVCMOS Output with Synchronous Enable Input

Pin-Controlled Configuration

V_CC Core Supply: 3.3 V ± 5%

3 Independent V_CCO Output Supplies:
3.3 V/2.5 V ±5%

Industrial Temperature Range: -40°C to +85°C

36-lead WQFN (6 mm × 6 mm)