Ultra Low-Noise and Low Power JESD204B Compliant Clock Jitter Cleaner - LMK04616

LMK04616 (ACTIVE)

Ultra Low-Noise and Low Power JESD204B Compliant Clock Jitter Cleaner

 

Description

The LMK0461x device family is the industry’s highest performance and lowest power jitter cleaner with JESD204B support. The 16 clock outputs can be configured to drive eight JESD204B converters or other logic devices using device and SYSREF clocks. The 17th output can be configured to provide a signal from PLL2 or a copy from the external VCXO.

Features like fully integrated PLL1 and PLL2 loop filters, a high number of integrated LDOs, digital and analog delay, the flexibility to supply outputs with 3.3V, 2.5V and 1.8V as well as the option to generate multiple SYSREF domains simultaneously makes the device easy to use.

Not limited to JESD204B applications each of the 17 outputs can be configured for traditional clocking systems.

Features

  • Dual Loop PLL Architecture
    • 65-fs RMS Jitter (10 kHz to 20 MHz)
    • 85-fs RMS Jitter (100 Hz to 20 MHz)
    • –165-dBc/Hz Noise Floor at 122.88 MHz
  • JESD204B Support
    • Single Shot, Pulsed, and Continuous SYSREF
  • 16 Differential Output Clocks in 8 Frequency Groups
    • Programmable Output Swing Between 700 mVpp to 1600 mVpp
    • Each Output Pair Can be Configured to SYSREF Clock Output
    • 16-Bit Channel Divider
    • Minimum SYSREF Frequency of 25 kHz
    • Maximum Output Frequency of 2 GHz
    • Precision Digital Delay, Dynamically Adjustable
      • Digital Delay (DDLY) of ½ × Clock Distribution Path Frequency (2 GHz Maximum)
    • 60-ps Step Analog Delay
    • 50% Duty Cycle Output Divides, 1 to 65535
      (Even and Odd)
  • 4 Reference Inputs
    • Holdover Mode, When Inputs are Lost
    • Automatic and Manual Switch-Over Modes
    • Loss-of-Signal (LOS) Detection
  • 1.05-W Typical Power Consumption With 16 Outputs Active
  • Operates Typically From a 1.8-V (Outputs, Inputs) and 3.3-V Supply (Digital, PLL1, PLL2_OSC, PLL2 Core)
  • Fully Integrated Programmable Loop Filter
  • PLL2
    • PLL2 Phase Detector Rate Up to 250 MHz
    • OSCin Frequency-Doubler
    • Integrated Low-Noise VCO
  • Internal Power Conditioning: Better Than –70-dBc PSRR (50-mVpp Ripple From 100 kHz to 1 MHz) for 122.88-MHz Differential Outputs
  • 3- or 4-Wire SPI Interface (3-Wire is Default)
  • –40ºC to +85ºC Industrial Ambient Temperature
  • Supports 105ºC PCB Temperature (Measured at Thermal Pad)
  • LMK04616: 10-mm × 10-mm NFBGA-144 Package With 0.8-mm Pitch

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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)
Special Features
Operating Temperature Range (C)
Pin/Package
LMK04616 LMK04208 LMK04610 LMK04808 LMK04821 LMK04828
16    7    10    14    15    15   
HCSL
HSDS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
HCSL
HSDS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
HSDS
LCPECL
LVCMOS
LVDS
LVPECL   
0.03    0.329    0.03    0.22    0.045    0.289   
2000    3072    2000    3072    2075    3080   
4    2    2    2    3    3   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
LVCMOS
LVDS
LVPECL   
0.065    0.111    0.065    0.111    0.091    0.088   
5800    2750    5800    2750    365    2370   
6200    3072    6200    3072    2075    3080   
1.7    3.15    1.7    3.15    3.15    3.15   
3.465    3.45    3.465    3.45    3.45    3.45   
105C PCB temp
Holdover mode
JESD204B SYSREF Generation
Manual and automatic switching between inputs
SPI   
Holdover mode
Int. xtal oscillator
Manual/auto switch
SPI
uWire   
105C PCB temp
Holdover mode
JESD204B SYSREF Generation
Manual/auto switch
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   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
144NFBGA    64WQFN    56QFN    64WQFN    64WQFN    64WQFN   

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