TAS3108IADCPRG4 datasheet(48/63 Pages) TI1

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8.5.3

Serial Audio Port Master Mode Signals (TAS3108/TAS3108IA)

tr(SCLKOUT)

tf(SCLKOUT)

tsk

tr(SCLKOUT)

tpd1(SCLKOUT2)

tpd1(SCLKOUT1)

tf(LRCLK), tr(LRCLK)

tpd2

tsu

SCLKOUT2

LRCLK

(Output)

SDOUT1

SDOUT2

SDOUT3

SDOUT4

SDIN1

SDIN2

SDIN3

SDIN4

SCLKOUT1

T0091-01

TAS3108, TAS3108IA

AUDIO DIGITAL SIGNAL PROCESSORS

SLES152B – OCTOBER 2005 – REVISED NOVEMBER 2007

over recommended operating conditions (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

f(LRCLK)

Frequency LRCLK

CL = 30 pF

32(1)

192(1)

kHz

tr(LRCLK)

Rise time, LRCLK (2)

CL = 30 pF

12(1)

tf(LRCLK)

Fall time, LRCLK (2)

Duty cycle is 50/50.

12(1)

f(SCLKOUT)

Frequency, SCLKOUT1/SCLKOUT2

CL = 30 pF

25(1)

MHz

(1)

tr(SCLKOUT)

Rise time, SCLKOUT1/SCLKOUT2

CL = 30 pF

20(1)

tf(SCLKOUT)

Fall time, SCLKOUT1/SCLKOUT2

CL = 30 pF

20(1)

tpd1(SCLKOUT1) Propagation delay, SCLKOUT1 falling edge to LRCLK edge

4(1)

tpd1(SCLKOUT2) Propagation delay, SCLKOUT2 falling edge to LRCLK edge

4(1)

tpd2

Propagation delay, SCLKOUT2 falling edge to SDOUT

4(1)

tsu

Setup time, SDIN to SCLKOUT1 rising edge

20(1)

Hold time, SDIN from SCLKOUT1 rising edge

23(1)

t(SKEW)

Skew time, SCLKOUT1 to SCLKOUT2

3(1)

(1)

This measurement in specified by design.

(2)

Rise time and fall time measured from 20% to 80% of maximum height of waveform.

Figure 8-3. TAS3108/TAS3108IA Serial Audio Port Master Mode Timing Waveforms

Electrical Specifications

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