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CONTROL INTERFACE TIMING REQUIREMENTS

t(MCH)

1.4 V

MS

t(MSS)

LSB

1.4 V

1.4 V

t(MCL)

t(MHH)

t(MSH)

t(MCY)

t(MDH)

t(MDS)

MC

MD

T0013-06

PCM1807

SLES147 – SEPTEMBER 2005

Figure 30 illustrates a detailed timing diagram for the serial control port. These timing parameters are critical for

proper control port operation.

SYMBOL

PARAMETER

MIN

MAX

UNIT

t(MCY)

MC pulse cycle time

100

ns

t(MCL)

MC low-level time

40

ns

t(MCH)

MC high-level time

40

ns

t(MHH)

MS high-level time

tMCY

ns

t(MSS)

MS falling edge to MC rising edge

15

ns

t(MSH)

MS hold time (1)

15

ns

t(MDH)

MD hold time

15

ns

t(MDS)

MD setup time

15

ns

(1)

MC rising edge to MS rising edge for the MC pulse corresponding to the LSB of MD

Figure 30. Control Interface Timing

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