TAS5721 datasheet(11/71 Pages) TI1

tên linh kiện	TAS5721

Giải thích chi tiết về linh kiện	Digital Audio Power Amplifier with EQ, DRC, 2.1 Support, and Headphone/Line Driver

PDF	71 Pages

Scroll/Zoom	100%

nhà sản xuất	TI1 [Texas Instruments]

Trang chủ	http://www.ti.com

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11 / 71 page

su1

(edge)

su2

SCLK

(Input)

LRCLK

(Input)

SDIN

T0026-04

TAS5721

www.ti.com

SLOS739 – JULY 2012

Serial Audio Port Timing

PVDD = 18 V, AVDD = DRVDD = DVDD = 3.3 V, audio input signal =1 kHz sine wave, BTL, AD mode, fS = 48 kHz, RSPK = 8

Ω, AES17 filter, fPWM = 384 kHz, external components per Typical Application Circuit diagrams, and in accordance with

recommended operating conditions (unless otherwise specified).

TEST

PARAMETER

MIN

TYP

MAX

UNIT

CONDITIONS

fSCLKIN

Frequency, SCLK 32 × fS, 48 × fS, 64 × fS

CL = 30 pF

1.024

12.288

MHz

tsu1

Setup time, LRCLK to SCLK rising edge

th1

Hold time, LRCLK from SCLK rising edge

tsu2

Setup time, SDIN to SCLK rising edge

th2

Hold time, SDIN from SCLK rising edge

LRCLK frequency

kHz

SCLK duty cycle

40%

50%

60%

LRCLK duty cycle

40%

50%

60%

SCLK

SCLK rising edges between LRCLK rising edges

edges

t(edge)

SCLK

LRCLK clock edge with respect to the falling edge of SCLK

–1/4

1/4

period

tr/tf

Rise/fall time for SCLK/LRCLK

LRCLK allowable drift before LRCLK reset

MCLK

Periods

Figure 8. Serial Audio Port Timing

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