LM49352RLX/NOPB National Semiconductor, LM49352RLX/NOPB Datasheet - Page 103

• Manufacturer Part Number: LM49352RLX/NOPB
• Description: IC AMP AUDIO MONO D1.4W 36USMD
• Manufacturer: National Semiconductor
• Series: Boomer®, PowerWise®r
• Type: Class Dr

Specifications of LM49352RLX/NOPB

• Output Type: 1-Channel (Mono) with Mono and Stereo Headphones
• Max Output Power X Channels @ Load: 1.4W x 1 @ 8 Ohm; 65mW x 2 @ 32 Ohm
• Features: Depop, Differential Inputs, I²C, I²S, Microphone, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 36-MicroSMDxt
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -
• Other names: LM49352RLX

Bits
Bits
Bits
Bits
4:0
1:0
0
1
5
2
0
1
2
SOFT_RESET
SS_DISABLE
CP_FORCE
DACREF
SHORT
TEMP
RSVD
RSVD
RSVD
Field
Field
Field
Field
This bit will go high whenever a short circuit condition occurs on the Class D
loudspeaker amplifier outputs. Once triggered by a short circuit event, an I
of 1 to this bit clear this bit.
This bit will go high whenever the temperature of the LM49352 reaches a critical
temperature. Once triggered by a thermal event, an I
this bit.
Reserved.
Setting this bit resets the digital core of LM49352. SOFT_RESET does not affect
the current I
Reserved
If this bit is set, Spread Spectrum mode will be disabled from the Class D amplifier.
Reserved
This bit determines whether the DAC reference voltage is internally generated or
externally driven.
If set, a -LS_VDD rail will be generated on HP_VSS, even if the headphone output
stage is not required.
TABLE 85. Spread Spectrum (0xF1h)
DACREF
TABLE 84. RESET (0xF0h)
TABLE 83. GPIO2 (0xE1h)
TABLE 86. FORCE (0xFE)
0
1
2
C register settings.
DACREF uses an internal bandgap reference.
DACREF is driven by an external voltage reference.
103
Description
Description
Description
Description
STATUS
2
C write of 1 to this bit clear
2
C write
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