ADV7281 datasheet(6/32 Pages) AD

6 / 32 page

ADV7281

Data Sheet

Rev. A | Page 6 of 32

ANALOG SPECIFICATIONS

AVDD, DVDD, PVDD, and MVDD = 1.71 V to 1.89 V, DVDDIO = 2.97 V to 3.63 V, specified at operating temperature range, unless otherwise noted.

Specifications guaranteed by characterization. Note that MVDD only applies to the ADV7281-M/ADV7281-MA.

Table 3.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

CLAMP CIRCUITRY

External Clamp Capacitor

0.1

µF

Input Impedance

Clamps switched off

MΩ

Large Clamp Source Current

0.4

Large Clamp Sink Current

0.4

Fine Clamp Source Current

µA

Fine Clamp Sink Current

µA

CLOCK AND I2C TIMING SPECIFICATIONS

AVDD, DVDD, PVDD, and MVDD = 1.71 V to 1.89 V, DVDDIO = 2.97 V to 3.63 V, specified at operating temperature range, unless otherwise noted.

Specifications guaranteed by characterization. Note that MVDD only applies to the ADV7281-M/ADV7281-MA.

Table 4.

Parameter

Symbol

Min

Typ

Max

Unit

SYSTEM CLOCK AND CRYSTAL

Nominal Frequency

28.63636

MHz

Frequency Stability

±50

ppm

I2C PORT

SCLK Frequency

400

kHz

SCLK Minimum Pulse Width High

0.6

µs

SCLK Minimum Pulse Width Low

1.3

µs

Hold Time (Start Condition)

0.6

µs

Setup Time (Start Condition)

0.6

µs

SDATA Setup Time

100

SCLK and SDATA Rise Times

300

SCLK and SDATA Fall Times

300

Setup Time (Stop Condition)

0.6

µs

RESET INPUT

RESET Pulse Width

SDATA

SCLK

Figure 4. I2C Timing Diagram

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