Intel E3815 FH8065301567411 Data Sheet

 

Intel

®

 Atom™ Processor E3800 Product Family

Datasheet

185

These waveforms are applied with the equivalent of a zero impedance voltage source, 
driving through a series resistor directly into each input or tri-stated output pin. The 
open-circuit voltage of the voltage source is shown in 

, which is based on the 

worst case overshoot and undershoot expected in actual Intel HD Audio buses. The 
resistor values are calculated to produce the worst case current into an effective 
internal clamp diode.

 

NOTE:
1.

The voltage waveform is supplied at the resistor shown in the evaluation setup, not the 
package pin. 

2.

Any internal clamping in the device being tested will greatly reduce the voltage levels seen 
at the package pin.

V

1

Overshoot Voltage

3.25

V

V

2

Undershoot Initial Voltage

1.65

V

V

3

Undershoot Voltage

-1.6

V

V

pu

Waveform peak-to-peak

3.25

V

V

po

Waveform peak-to-peak

3.25

V

t

rf

Rise/fall time

0.5

1.5

V/ns

f

SDI

Frequency of AC rating waveform as 
applied to SDI input buffers

24

MHz

f

SDO

Frequency of AC rating waveform as 
applied to SDO input buffers

24

MHz

Overshoot waveform at the codec

65 Ohms

Undershoot waveform ar the codec

101 Ohms

Overshoot waveform at the controller

108 Ohms