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LMH1982SQX/NOPB ACTIVE

Multi-rate video clock generator with Genlock

Pricing


Qty Price (USD)
1-99 21.138
100-249 18.79
250-999 15.446
1,000+ 13.816

Additional package qty | carrier options info-circle

Package qty | Carrier 1,000 | SMALL T&R
Inventory
Out of stock
Qty | Price (USD) 1ku | 15.816 1-99 24.198 100-249 21.51 250-999 17.682 1,000+ 15.816

Package qty | Carrier 250 | SMALL T&R
Inventory
Qty | Price (USD) 1ku | 15.816 1-99 24.198 100-249 21.51 250-999 17.682 1,000+ 15.816

Quality information

RoHS Yes
REACH Yes
Lead finish / Ball material SN
MSL rating / Peak reflow Level-1-260C-UNLIM
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

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins WQFN (RTV) | 32
Package qty | Carrier: 4,500 | LARGE T&R
Operating temperature range (°C) 0 to 70
View TI packaging information

Features for the LMH1982

  • Two Simultaneous LVDS Output Clocks with
    Selectable Frequencies and Hi-Z Capability:
    • SD Clock: 27 MHz or 67.5 MHz
    • HD Clock: 74.25 MHz, 74.25/1.001 MHz,
      148.5 MHz or 148.5/1.001 MHz
  • Low-Jitter Output Clocks May Be Directly
    Connected to an FPGA Serializer to Meet SMPTE
    SDI Jitter Specifications
  • Top of Frame (TOF) Pulse with Programmable
    Output Format Timing and Hi-Z Capability
  • Two reference ports (A and B) With H and V Sync
    Inputs
  • Supports Cross-Locking of Input and Output
    Timing
  • External Loop Filter Allows Control of Loop
    Bandwidth, Jitter Transfer, and Lock Time
    Characteristics
  • Free Run or Holdover Operation on Loss of
    Reference
  • User-Defined Free Run Control Voltage Input
  • I2C Interface and Control Registers
  • 3.3-V and 2.5-V Supplies

Description for the LMH1982

The LMH1982 device is a multi-rate video clock generator ideal for use in a wide range of 3-Gbps (3G), high-definition (HD), and standard-definition (SD) video applications, such as video synchronization, serial digital interface (SDI) serializer and deserializer (SerDes), video conversion, video editing, and other broadcast and professional video systems.

The LMH1982 can generate two simultaneous SD and HD clocks and a Top of Frame (TOF) pulse. In genlock mode, the device's phase locked loops (PLLs) can synchronize the output signals to H sync and V sync input signals applied to either of the reference ports. The input reference can have analog timing from Texas Instrument's LMH1981 multi-format video sync separator or digital timing from an SDI deserializer and should conform to the major SD and HD standards. When a loss of reference occurs, the device can default to free run operation where the output timing accuracy will be determined by the external bias on the free run control voltage input.

The LMH1982 can replace discrete PLLs and field-programmable gate array (FPGA) PLLs with multiple voltage controlled crystal oscillators (VCXOs). Only one 27.0000 MHz VCXO and loop filter are externally required for genlock mode. The external loop filter as well as programmable PLL parameters can provide narrow loop bandwidths to minimize jitter transfer. HD clock output jitter as low as 40 ps peak-to-peak can help designers using FPGA SerDes meet stringent SDI output jitter specifications.

The LMH1982 is offered in a space-saving 5 mm × 5 mm 32-pin WQFN package and provides low total power consumption of about 250 mW (typical).

Pricing


Qty Price (USD)
1-99 21.138
100-249 18.79
250-999 15.446
1,000+ 13.816

Additional package qty | carrier options info-circle

Package qty | Carrier 1,000 | SMALL T&R
Inventory
Out of stock
Qty | Price (USD) 1ku | 15.816 1-99 24.198 100-249 21.51 250-999 17.682 1,000+ 15.816

Package qty | Carrier 250 | SMALL T&R
Inventory
Qty | Price (USD) 1ku | 15.816 1-99 24.198 100-249 21.51 250-999 17.682 1,000+ 15.816

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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