TAS3103 datasheet(119/146 Pages) TI

119 / 146 page

4−3

4.4

TAS3100 Timing Characteristics

4.4.1

Master Clock Signals Over Recommended Operating Conditions (Unless Otherwise

Noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNITS

f(XTALI)

Frequency, XTALI (1/tc(1))

2.8

MHz

f(MCLKI)

Frequency, MCLKI (1/tc(2))

2.8

MHz

tw(MCLKI)

Pulse duration, MCLKI high

See Note 6

HMCLKI − 25

HMCLKI

HMCLKI + 25

MCLKI jitter

±5

f(MCLKO)

Frequency, MCLKO (1/tc(3))

2.8

MHz

tr(MCLKO)

Rise time, MCLKO

CL = 30 pF

9.5

tf(MCLKO)

Fall time, MCLKO

CL = 30 pF

9.5

tw(MCLKO)

Pulse duration, MCLKO high

See Note 9

HMCLKO

MCLKI jitter

XTALI master clock source

MCLKI jitter

MTALI master clock source

See Note 10

td(MI−MO)

Delay time, MCLKI

rising edge to

MCKLO = MCLKI

See Note 7

td(MI−MO)

rising edge to

MCLKO rising edge

MCLKO < MCLKI

See Note 7 and Note 8

NOTES:

6. HMCLKI = 1 / 2MCLKI

7. Only applies when MCLKI is selected as master source clock.

8. Also applies to MCLKO falling edge when MCLKO = MCLKI/2 or MCLKI/4

9. HMCLKO = 1 / 2MCLKO. MCLKO has the same duty cycle as MCLKI when MCLKO = MCLKI. When MCLKO = 0.5 MCLKI or 0.25

MCLKI, the duty cycle of MCLKO is typically 50%.

10. When MCLKO is derived from MCLKI, MCLKO jitter = MCLKI jitter

XTALI

MCLKO

MCLKI

tw(MCLKI)

tf(MCLKO)

tc(1)

tc(2)

tc(3)

tw(MCLKO)

tr(MCLKO)

td(MI-MO)

Figure 4−1. Master Clock Signals Timing Waveforms

TAS3103 Datasheet(PDF) 119 Page - Texas Instruments

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