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TAS2553 数据表(PDF) 40 Page - Texas Instruments

部件名 TAS2553
功能描述  TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense
PDF  58 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

TAS2553 数据表(HTML) 40 Page - Texas Instruments

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TAS2553
SLAS978B – SEPTEMBER 2013 – REVISED FEBRUARY 2014
www.ti.com
7.5.22 Register 0x14: Boost Auto-Pass Through Control Register
Auto-Pass Through deactivates the boost converter when the battery voltage is sufficient for the required Class-
D output voltage. This register sets the threshold for activating the boost converter and the delay time between
the Class-D output voltage dropping below the threshold before the boost converter deactivates.
READ /
BIT
NAME
DEFAULT
DESCRIPTION
WRITE
7-4
R/W
0000
Reserved. Write only default values.
3-2
APT_THRESHOLD
R/W
00
Analog Input – Auto-Pass Through Threshold
The boost converter activates when the Class-D output voltage exceeds
this threshold voltage.
00 = 0.5 V
01 = 1.0 V
10 = 1.4 V
11 = 2.0 V
Digital Input – Auto-Pass Through Threshold
The boost converter activates when the Class-D output voltage exceeds
this threshold voltage.
00 = 0.2 V
01 = 0.7 V
10 = 1.1 V
11 = 1.7 V
1-0
APT_DELAY_SEL
R/W
00
Auto-Pass Thru Delay
The delay between the Class-D output voltage dropping below the auto-
pass thru threshold voltage and the boost converter deactivating.
00 = 50 ms
01 = 75 ms
10 = 125 ms
11 = 200 ms
7.5.23 Register 0x15: Reserved Register
READ /
BIT
NAME
DEFAULT
DESCRIPTION
WRITE
7-0
R
0000 0000
Reserved
7.5.24 Register 0x16: Version Number
READ /
BIT
NAME
DEFAULT
DESCRIPTION
WRITE
7-4
R
0000
Reserved
3-0
SILICON_VER
R
1000
Silicon version identifier bits
7.5.25 Register 0x17: Reserved Register
READ /
BIT
NAME
DEFAULT
DESCRIPTION
WRITE
7-0
R
0000 0000
Reserved
7.5.26 Register 0x18: Reserved Register
READ /
BIT
NAME
DEFAULT
DESCRIPTION
WRITE
7-0
R
0000 0000
Reserved
40
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Copyright © 2013–2014, Texas Instruments Incorporated
Product Folder Links: TAS2553



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