STA321 datasheet(91/157 Pages) STMICROELECTRONICS

部件名	STA321

功能描述	4-channel digital audio system with FFX??driver

PDF	157 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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91 / 157 page

STA321

Doc ID 15351 Rev 3

91/157

PWMO1CFG0

Address:

0x11

Type:

Reset:

0x20

Description:

PWMO1CFG1

Address:

0x12

Type:

Reset:

0x00

Description:

Configuration for PWM-A

3210

AZPLS_1

TERNARY_1

HALFB_1

MP_ZERO_1

MIN_PLS_1[3:0]

[7] AZPLS_1

1: avoid zero pulse

[6] TERNARY_1

1: ternary modulation

[5] HALFB_1

1: 1B is modulated as null signal

[4] MP_ZERO_1

1: apply the minimum pulse settings also for values near 0

[3:0] MIN_PLS_1[3:0]

minimum pulse length = clock period * (MIN_PLS_1 + 1)

765

432

PM_1A[1:0]

PS_1A[5:0]

[7:6] PM_1A[1:0]: PWM mode

00: generate a rising edge using a down carrier

01: generate a falling edge using an up carrier

10: hybrid mode: alternation of modes 00 and 01

11: hybrid mode: alternation of modes 01 and 00

[5:0] PS_1A[5:0]: PWM shift

The PWM waveform could be shifted by (PS_1A * clock period / 64)

STA321 数据表(PDF) 91 Page - STMicroelectronics

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