Mitel MT90840 Manual do Utilizador descarregar pdf (Página 34)

MT90840 Preliminary Information

2-264

‡ Typical ﬁgures are at 25°C and are for design aid only: not guaranteed and not subject to production testing.

Figure 17 - Output Test Load

10 STo Delay from High-Z to Active

2.048 and 4.096 Mbps (TM2 &TM3)

2.048 and 4.096 Mbps (TM1)

8.192 Mbps (STio0-3)

=30pF, R

=1K

11 STo Output Delay from SPCKo

(TM2 & TM3, 2.048 and 4.096 Mbps)

STo Output Delay from 4.096 MHz C4/8

input (TM1)

STo 8.192 Mbps Output Delay from

C4/8 input (TM1, 2 & 3; STi/o0-3)

sod

=30pF

=150pF

=30pF

=150pF

=30pF

=150pF

12 STi Input Setup Time from SPCKo

output edge (2.048 and 4.096 Mbps)

STi Input Setup Time from C4/8 input

edge in TM1 (2.048 and 4.096 Mbps)

STi Input Setup Time from C4/8 input

edge at 8.192 Mbps (STi/o0-3)

stis

SPCKo C

=30pF

SPCKo C

=150pF

TM1 and TM2,

STi0-3, STo0-3

13 STi Input Hold Time from SPCKo output

edge (2.048 and 4.096 Mbps)

STi Input Hold Time from C4/8 input

edge in TM1 (2.048 and 4.096 Mbps)

STi Input Hold Time from C4/8 input

edge at 8.192 Mbps

stih

SPCKo C

=30pF

SPCKo C

=150pF

TM1 and TM2,

STi0-3, STo0-3

AC Electrical Characteristics - Voltages are with respect to ground (V

) unless otherwise stated.

Characteristics Sym Min Typ

‡

Max Units Test Conditions

Output

Test Point

S1 is open circuit except

when testing output levels

or high impedance states.

S2 is switched to VDD or

when testing output

levels or high impedance

states.

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 49 50

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