LMK00306 3.1-GHz Differential Clock Buffer/Level Translator | TI.com

LMK00306
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3.1-GHz Differential Clock Buffer/Level Translator

 

Description

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.

Features

  • 3:1 Input Multiplexer
    • 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 to 1 MHz)
      • 51 fs RMS (12 kHz to 20 MHz)
  • High PSRR: –65 / –76 dBc (LVPECL/LVDS) at
    156.25 MHz
  • LVCMOS Output with Synchronous Enable Input
  • Pin-Controlled Configuration
  • VCC Core Supply: 3.3 V ± 5%
  • 3 Independent VCCO Output Supplies: 3.3 V/2.5 V
    ± 5%
  • Industrial Temperature Range: –40°C to +85°C
  • 36-lead WQFN (6 mm × 6 mm)

Parametrics

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Part number Order Function Additive RMS jitter (Typ) (fs) Output frequency (Max) (MHz) Number of outputs VCC out (V) VCC core (V) Output skew (ps) Features Operating temperature range (C) Rating Output type Package Group Package size: mm2:W x L (PKG) Input type
LMK00306 Order now Fanout     51     3100     7     2.5
3.3    
3.3     50     Pin programmable     -40 to 85     Catalog     HCSL
LVCMOS
LVDS
LVPECL    
    CML
HCSL
HSTL
LVCMOS
LVDS
LVPECL
LVTTL
SSTL
XTAL    
LMK00301 Order now Fanout     51     3100     11     3.3
2.5    
3.3     50     Pin programmable     -40 to 85     Catalog     HCSL
LVDS
LVPECL    
WQFN | 48     48WQFN: 49 mm2: 7 x 7 (WQFN | 48)     CML
HCSL
HSTL
LVCMOS
LVDS
LVPECL
LVTTL
SSTL
XTAL    
LMK00304 Order now Fanout     51     3100     5     3.3
2.5    
3.3     50     Pin programmable     -40 to 85     Catalog     HCSL
LVCMOS
LVDS
LVPECL    
WQFN | 32     32WQFN: 25 mm2: 5 x 5 (WQFN | 32)     CML
HCSL
HSTL
LVCMOS
LVDS
LVPECL
LVTTL
SSTL
XTAL    
LMK00308 Order now Fanout     51     3100     9     2.5
3.3    
3.3     50     Pin programmable     -40 to 85     Catalog     HCSL
LVCMOS
LVDS
LVPECL    
WQFN | 40     40WQFN: 36 mm2: 6 x 6 (WQFN | 40)     CML
HCSL
HSTL
LVCMOS
LVDS
LVPECL
LVTTL
SSTL
XTAL