3-GHz, 10-Output Differential Fanout Buffer / Level Translator - LMK00301

LMK00301 (ACTIVE)

3-GHz, 10-Output Differential Fanout Buffer / Level Translator

Description

The LMK00301 is a 3-GHz, 10-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 5 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 LMK00301 operates from a 3.3 V core supply and 3 independent 3.3 V/2.5 V output supplies.

The LMK00301 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 10 to 40 MHz Crystal or
      Single-Ended Clock
  • Two Banks with 5 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
      – 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
  • 48-lead WQFN (7 mm × 7 mm)

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Parametrics Compare all products in Universal (programmable)

 
No. of Outputs
Output Level
Input Level
VCC (V)
Pin/Package
Approx. Price (US$)
Operating Temperature Range (C)
VCC Out (V)
LMK00301 LMK00304 LMK00306 LMK00308
11     5     7     9    
HCSL
LVDS
LVPECL    
LVPECL     HCSL
LVCMOS
LVDS
LVPECL    
HCSL
LVCMOS
LVDS
LVPECL    
HCSL
LVDS
LVPECL    
LVPECL     LVPECL
LVDS
CML
SSTL
HSTL
HCSL
LVCMOS
LVTTL
XTAL    
LVPECL
LVDS
CML
SSTL
HSTL
HCSL
LVCMOS
LVTTL
XTAL    
3.3     3.3     3.3     3.3    
48WQFN     32WQFN     36WQFN     40WQFN    
5.25 | 1ku     3.35 | 1ku     4.19 | 1ku     5.00 | 1ku    
-40 to 85     -40 to 85     -40 to 85     -40 to 85    
3.3
2.5    
3.3
2.5    
2.5
3.3    
2.5
3.3    
WEBENCH® Clock Architect - LMK00301
 
Frequency
 MHz
Number of Outputs
Output Format
 
 

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