LMK00804B-Q1 1.5-V to 3.3-V, 1-to-4 high-performance LVCMOS fan-out buffer and level translator | TI.com

LMK00804B-Q1 (ACTIVE) 1.5-V to 3.3-V, 1-to-4 high-performance LVCMOS fan-out buffer and level translator

 

Description

The LMK00804B-Q1 is a high-performance clock fan-out buffer and level translator that can distribute up to four LVCMOS/LVTTL outputs (3.3-V, 2.5-V, 1.8-V, or 1.5-V levels) from one of two selectable inputs that 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 terminal is asserted or deasserted. The outputs are held in logic low state when the clock is disabled. The LMK00804B-Q1 can also distrbute a low-jitter clock across four transceivers and can improve the overall target detection and resolution in a cascaded mmWave radar system.

Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Four LVCMOS/LVTTL outputs supporting 1.5-V to 3.3-V levels
    • Additive jitter: 0.1-ps RMS (typical) at 40 MHz
    • Noise floor: –168 dBc/Hz (typical) at 40 MHz
    • Output frequency: 350 MHz (maximum)
    • Output skew: 35 ps (maximum)
    • Part-to-part skew: 700 ps (maximum)
  • Two selectable inputs
    • CLK_P, CLK_N pair accepts LVPECL, LVDS, HCSL, SSTL, LVHSTL, or LVCMOS/LVTTL
    • LVCMOS_CLK accepts LVCMOS/LVTTL
  • Synchronous clock enable
  • Core/output power supplies:
    • 3.3 V/3.3 V
    • 3.3 V/2.5 V
    • 3.3 V/1.8 V
    • 3.3 V/1.5 V
  • Package: 16-pin VQFN

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Parametrics

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Part number Order Additive RMS jitter (Typ) (fs) Output frequency (Max) (MHz) Input type Number of outputs Output type VCC out (V) Operating temperature range (C) Rating
LMK00804B-Q1 Order now 40     350     HCSL
LVCMOS
LVDS
LVPECL
LVTTL    
4     LVCMOS     1.5
1.8
2.5
3.3    
-40 to 125     Automotive    
CDCLVC1104 Order now 70     250     LVCMOS     4     LVCMOS     2.5
3.3    
-40 to 85     Catalog    
CDCV304 Order now 56     200     LVTTL     4     LVTTL     2.5
3.3    
-40 to 85     Catalog    
LMK00105 Order now 30     200     LVCMOS     5     LVCMOS     3.3
2.5
1.8
1.5    
-40 to 85     Catalog    
LMK00804B Order now 40     350     HCSL
LVCMOS
LVDS
LVPECL
LVTTL    
4     LVCMOS
LVTTL    
3.3
2.5
1.8
1.5    
-40 to 85     Catalog