LMK00334-Q1 - 4-Output PCIe/Gen1/Gen2/Gen3/Gen4 Clock Buffer and Level Translator

The LMK00334-Q1 device is a 4-output HCSL fanout bufferintended for high-frequency, low-jitter clock, data distribution, and level translation. The inputclock can be selected from two universal inputs or one crystal input. The selected input clock isdistributed to two banks of two HCSL outputs and one LVCMOS output. The LVCMOS output has asynchronous enable input for runt-pulse-free operation when enabled or disabled. The LMK00334-Q1 operates from a 3.3-V core supply and three independent
3.3-V or 2.5-V output supplies.

The LMK00334-Q1 provides high performance, versatility, andpower efficiency, making it ideal for replacing fixed-output buffer devices while increasing timingmargin in the system.

• AEC-Q100 Qualified for Automotive Applications:
  • Device Temperature Grade 2: –40°C to 105°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level 2
  • Device CDM ESD Classification Level C5
  • Device MM ESD Classification Level M2
• 3:1 Input Multiplexer
  • Two Universal Inputs Operate up to 400 MHz 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 Two Differential Outputs Each
  • HCSL, or Hi-Z (Selectable)
  • Additive RMS Phase Jitter for PCIe Gen3/Gen4 at 100 MHz:
    • 30 fs RMS (typical)
• High PSRR: –72 dBc at 156.25 MHz
• LVCMOS Output With Synchronous Enable Input
• Pin-Controlled Configuration
• V_CC Core Supply: 3.3 V ± 5%
• Three Independent V_CCO Output Supplies: 3.3 V, 2.5 V ± 5%
• Industrial Temperature Range: –40°C to +105°C
• 32-Lead WQFN (5 mm × 5 mm)

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