| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,411 pcs
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2411 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The LMH1982 from Texas Instruments is a versatile multi-rate video clock generator ideal for broadcast and professional video systems, including video synchronization, SDI serializer/deserializer, and video conversion. It supports 3-Gbps (3G), high-definition (HD), and standard-definition (SD) video applications.
This device can generate two simultaneous SD and HD clocks with selectable frequencies. The SD clock options are 27 MHz or 67.5 MHz, while the HD clock can be set to 74.25 MHz, 74.25/1.001 MHz, 148.5 MHz, or 148.5/1.001 MHz. It also provides a Top of Frame (TOF) pulse with programmable output format timing.
The LMH1982 operates with core and output supply voltages of 2.5V or 3.3V and features an LVCMOS input type. It includes an I2C interface for control and registers, allowing for flexible configuration. The device is housed in a 25 mm² WQFN package, measuring 5 mm x 5 mm.
In genlock mode, the LMH1982 synchronizes output signals to H sync and V sync inputs. It supports cross-locking of input and output timing and can operate in free run or holdover modes upon loss of reference. An external loop filter can be used to control loop bandwidth, jitter transfer, and lock time characteristics.
| Qty | Low | High |
|---|---|---|
| 1+ | $3.00 | $3.00 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
It supports selectable SD clock frequencies of 27 and 67.5 MHz, and HD clock frequencies of 74.25, 74.25/1.001, 148.5, and 148.5/1.001 MHz.
LVDS.
2.
Core and output supply voltages can be 2.5V or 3.3V.
0°C to 70°C.
I2C.
WQFN, 25 mm² (5 mm × 5 mm).