Ultra Low Noise 3.2GHz Jitter Cleaner, Clock Generator and Distributor - LMK04832

LMK04832 (PREVIEW)

Ultra Low Noise 3.2GHz Jitter Cleaner, Clock Generator and Distributor

 

More Information and Sample Availability

Full data sheet and other information are available. Request now

Prototype samples are available (PLMK04832NKDT). Request now

Description

The LMK04832 is the industry’s highest performance clock conditioner with JEDEC JESD204B support and is also pin compatible with the LMK0482x family of devices.

The 14 clock outputs from PLL2 can be configured to drive seven JESD204B converters or other logic devices using device and SYSREF clocks. SYSREF can be provided using both DC and AC coupling. Not limited to JESD204B applications, each of the 14 outputs can be individually configured as high performance outputs for traditional clocking systems.

The LMK04832 can be configured for operation in dual PLL, single PLL, or clock distribution modes with or without SYSREF generation or reclocking. PLL2 may operate with either internal or external VCO.

The high performance combined with features like the ability to trade off between power and performance, dual VCOs, dynamic digital delay, and holdover make the LMK04832 ideal for providing flexible high performance clocking trees.

Features

  • Maximum Clock Output Frequency: 3250 MHz
  • Multi-Mode: Dual PLL, Single PLL, and Clock Distribution
  • Ultra-Low Noise, at 3200 MHz:
    • 47 fs RMS Jitter (12 kHz to 20 MHz)
    • 50 fs RMS Jitter (100 Hz to 100 MHz)
    • –158 dBc/Hz Noise Floor
  • PLL2
    • PLL FOM of –230 dBc/Hz
    • PLL 1/f of –126 dBc/Hz
    • Phase Detector Rate up to 320 MHz
    • Two Integrated VCOs: 2495 to 2705 MHz
      and 2945 to 3205 MHz
  • Up to 14 Differential Device Clocks
    • CML, LVPECL, LCPECL, HSDS, LVDS, and 2xLVCMOS Programmable Outputs
  • Up to 1 Buffered VCXO/XO Output
    • LVPECL, LVDS, 2xLVCMOS Programmable
  • Capable of 3.13-MHz Device Clock from 3.2 GHz
  • Capable of 391-kHz SYSREF from 3.2 GHz
  • 25-ps Step Analog Delay for SYSREF Clocks
  • Digital Delay and Dynamic Digital Delay for Device Clock and SYSREF
  • Holdover Mode with PLL1
  • 0-Delay with PLL1 or PLL2
  • +125°C Junction Temperature
  • Supports 105°C PCB Temperature (Measured at Thermal Pad)

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Parametrics Compare all products in Dual / Cascaded PLL

 
Number of Outputs
Output Level
Output Frequency (Min) (MHz)
Output Frequency (Max) (MHz)
Number of Inputs
Input Level
RMS Jitter
VCO Frequency (Min) (MHz)
VCO Frequency (Max) (MHz)
Supply Voltage (Min) (V)
Supply Voltage (Max) (V)
Features
Operating Temperature Range (C)
Pin/Package
LMK04832 LMK04616 LMK04808 LMK04821 LMK04826 LMK04828
14    16    14    15    15    15   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
HCSL
HSDS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
0.305    0.03    0.22    0.045    0.225    0.289   
3250    2000    3072    2075    2505    3080   
3    4    2    3    3    3   
  LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
0.047    0.065    0.111    0.091    0.089    0.088   
2495    5800    2750    365    1840    2370   
3205    6200    3072    2075    2505    3080   
3.15    1.7    3.15    3.15    3.15    3.15   
3.45    3.465    3.45    3.45    3.45    3.45   
Holdover mode
JESD204B SYSREF Generation
Manual/auto switch
SPI   
105C PCB temp
Holdover mode
JESD204B SYSREF Generation
Manual and automatic switching between inputs
SPI   
uWire
SPI
Holdover mode
Manual/auto switch
Int. xtal oscillator   
105C PCB temp
Holdover mode
Int. xtal oscillator
JESD204B SYSREF Generation
Manual/auto switch
SPI
uWire   
105C PCB temp
Holdover mode
Int. xtal oscillator
JESD204B SYSREF Generation
Manual/auto switch
SPI
uWire   
105C PCB temp
Holdover mode
Int. xtal oscillator
JESD204B SYSREF Generation
Manual/auto switch
SPI
uWire   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
64WQFN    144NFBGA    64WQFN    64WQFN    64WQFN    64WQFN