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SSM4567ACBZ-R7 Datenblatt(PDF) 33 Page - Analog Devices

Teilenummer SSM4567ACBZ-R7
Bauteilbeschribung  Digital 2.5 W, 5.1 V, Boost Class-D Audio Amplifier with Output Sensing
PDF  52 Pages
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SSM4567ACBZ-R7 Datenblatt(HTML) 33 Page - Analog Devices

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Data Sheet
SSM4567
Rev. 0| Page 33 of 52
REGISTER DETAILS
POWER CONTROL REGISTER
Address: 0x00, Reset: 0x81, Name: POWER_CTRL
Table 26. Bit Descriptions for POWER_CTRL
Bits
Bit Name
Settings
Description
Reset
Access
7
APWDN_EN
Auto Power-Down Enable. Auto power down automatically puts the IC in a low
power state when 2048 consecutive zero input samples have been received.
0x1
R/W
0
Auto Power-Down Disabled.
1
Auto Power-Down Enabled When APWDN_EN=1. The device automatically powers
down when 2048 consecutive zero value input samples have been received. The
device automatically powers up when a single non zero sample is received.
6
BSNS_PWDN
Battery Voltage Sense Power Down.
0x0
R/W
0
Battery Voltage Sense Powered On.
1
Battery Voltage Sense Powered Off.
5
VSNS_PWDN
Voltage Sense Power-Down.
0x0
R/W
0
Voltage Sense Powered On.
1
Voltage Sense Powered Off.
4
ISNS_PWDN
Current Sense Power Down.
0x0
R/W
0
Current Sense Powered On.
1
Current Sense Powered Off.
3
BOOST_PWDN
Boost Converter Power-Down. When the boost converter is powered down, the
Class-D operates directly from VBAT power supply.
0x0
R/W
0
Boost Converter Enabled.
1
Boost Converter Powered Down.
2
AMP_PWDN
Amplifier Power-Down.
0x0
R/W
0
Amplifier and DAC Normal Operation.
1
Amplifier and DAC Powered Down.
1
VBAT_ONLY
Class-D Power Switch.
0x0
R/W
0
Class-D can switch between VBAT and PVDD as a five-level output.
1
Class-D powered from VBAT only, even if the booster is on.
0
SPWDN
Master Software Power-Down. Software power-down puts all blocks except the I2C
interface in a low power state.
0x1
R/W
0
Normal Operation.
1
Software Master Power-Down.



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