ADV7281 datasheet(28/32 Pages) AD

28 / 32 page

ADV7281

Data Sheet

Rev. A | Page 28 of 32

EXPOSED METAL PAD

The ADV7281/ADV7281-M/ADV7281-MA have an exposed

metal pad on the bottom of the package. This pad must be

soldered to ground. The exposed pad is used for proper heat

dissipation, noise suppression, and mechanical strength.

DIGITAL INPUTS

The digital inputs of the ADV7281/ADV7281-M/ADV7281-MA

are designed to work with 1.8 V signals (3.3 V for DVDDIO) and are

not tolerant of 5 V signals. Extra components are required if 5 V

logic signals must be applied to the decoder.

MIPI OUTPUTS (D0P, D0N, CLKP, CLKN)

ADV7281-M/ADV7281-MA ONLY

It is recommended that the MIPI output traces be kept as short

as possible and on the same side of the PCB as the ADV7281-M/

ADV7281-MA device. It is also recommended that a solid plane

(preferably a ground plane) be placed on the layer adjacent to

the MIPI traces to provide a solid reference plane.

MIPI transmission operates in both differential and single-

ended modes. During high speed transmission, the pair of

outputs operates in differential mode; in low power mode, the

pair operates as two independent single-ended traces. There-

fore, it is recommended that each output pair be routed as two

loosely coupled 50 Ω single-ended traces to reduce the risk of

crosstalk between the two traces in low power mode.

ADV7281 Datasheet(PDF) 28 Page - Analog Devices