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LMK04808BISQ/NOPB ACTIVE

Low-noise clock jitter cleaner with dual loop PLLs and integrated 2.9-GHz VCO

custom-reels CUSTOM Custom reel may be available
Inventory:

Pricing


Qty Price (USD)
1-99 12.709
100-249 11.101
250-999 8.559
1,000+ 7.656

Additional package qty | carrier options info-circle

custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,000 | LARGE T&R
Inventory
Qty | Price (USD) 1ku | 7.656 1-99 12.709 100-249 11.101 250-999 8.559 1,000+ 7.656

Package qty | Carrier 250 | SMALL T&R
Inventory
Qty | Price (USD) 1ku | 8.804 1-99 14.615 100-249 12.766 250-999 9.843 1,000+ 8.804

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-3-260C-168 HR
Quality, reliability
& packaging information info-circle

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
View or download

Export classification

  • US ECCN: EAR99

Packaging information

Package | Pins WQFN (NKD) | 64
Package qty | Carrier: 1,000 | LARGE T&R
Operating temperature range (°C) -40 to 85
View TI packaging information

Features for the LMK04808

  • Ultra-Low RMS Jitter Performance
    • 111 fs RMS Jitter (12 kHz to 20 MHz)
    • 123 fs RMS Jitter (100 Hz to 20 MHz)
  • Dual Loop PLLatinum™ PLL Architecture
  • PLL1
    • Integrated Low-Noise Crystal Oscillator
      Circuit
    • Holdover Mode when Input Clocks are Lost
    • Automatic or Manual Triggering/Recovery
  • PLL2
    • Normalized PLL Noise Floor of –227 dBc/Hz
    • Phase Detector Rate up to 155 MHz
    • OSCin Frequency-Doubler
    • Integrated Low-Noise VCO
  • 2 Redundant Input Clocks with LOS
    • Automatic and Manual Switch-Over Modes
  • 50 % Duty Cycle Output Divides, 1 to 1045 (Even
    and Odd)
  • 12 LVPECL, LVDS, or LVCMOS Programmable
    Outputs
  • Digital Delay: Fixed or Dynamically Adjustable
  • 25 ps Step Analog Delay Control.
  • 14 Differential Outputs. Up to 26 Single Ended.
    • Up to 6 VCXO/Crystal Buffered Outputs
  • Clock Rates of up to 1536 MHz
  • 0-Delay Mode
  • Three Default Clock Outputs at Power Up
  • Multi-Mode: Dual PLL, Single PLL, and Clock
    Distribution
  • Industrial Temperature Range: –40 to 85°C
  • 3.15-V to 3.45-V Operation
  • 2 Dedicated Buffered/Divided OSCin Clocks
  • Package: 64-Pin WQFN (9.0 × 9.0 × 0.8 mm)

Description for the LMK04808

The LMK0480x family is the industry’s highest performance clock conditioner with superior clock jitter cleaning, generation, and distribution with advanced features to meet next generation system requirements. The dual loop PLLatinum architecture is capable of 111 fs rms jitter (12 kHz to 20 MHz) using a low noise VCXO module or sub-200 fs rms jitter (12 kHz to 20 MHz) using a low cost external crystal and varactor diode.

The dual loop architecture consists of two high-performance phase-locked loops (PLL), a low-noise crystal oscillator circuit, and a high-performance voltage controlled oscillator (VCO). The first PLL (PLL1) provides low-noise jitter cleaner functionality while the second PLL (PLL2) performs the clock generation. PLL1 can be configured to either work with an external VCXO module or the integrated crystal oscillator with an external tunable crystal and varactor diode. When paired with a very narrow loop bandwidth, PLL1 uses the superior close-in phase noise (offsets below 50 kHz) of the VCXO module or the tunable crystal to clean the input clock. The output of PLL1 is used as the clean input reference to PLL2 where it locks the integrated VCO. The loop bandwidth of PLL2 can be optimized to clean the far-out phase noise (offsets above 50 kHz) where the integrated VCO outperforms the VCXO module or tunable crystal used in PLL1.

Inventory:

Pricing


Qty Price (USD)
1-99 12.709
100-249 11.101
250-999 8.559
1,000+ 7.656

Additional package qty | carrier options info-circle

custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,000 | LARGE T&R
Inventory
Qty | Price (USD) 1ku | 7.656 1-99 12.709 100-249 11.101 250-999 8.559 1,000+ 7.656

Package qty | Carrier 250 | SMALL T&R
Inventory
Qty | Price (USD) 1ku | 8.804 1-99 14.615 100-249 12.766 250-999 9.843 1,000+ 8.804

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships  tube or tray  devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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