LM49370RL/NOPB National Semiconductor, LM49370RL/NOPB Datasheet - Page 47
![IC AUDIO SUBSYSTEM 1.2W 49USMDXT](/photos/7/0/70002/pkg_rla_sml.jpg)
LM49370RL/NOPB
Manufacturer Part Number
LM49370RL/NOPB
Description
IC AUDIO SUBSYSTEM 1.2W 49USMDXT
Manufacturer
National Semiconductor
Series
Boomer®, PowerWise®r
Type
Class Dr
Datasheet
1.LM49370RLNOPB.pdf
(100 pages)
Specifications of LM49370RL/NOPB
Output Type
1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power X Channels @ Load
1.2W x 1 @ 8 Ohm; 52mW x 2 @ 16 Ohm
Voltage - Supply
2.5 V ~ 5.5 V
Features
3D, Depop, I²C, I²S, Microphone, Mute, PCM, Shutdown, SPI, Standby, Volume Control
Mounting Type
Surface Mount
Package / Case
49-MicroSMDxt
Dc
07+
For Use With
LM49370RLEVAL - BOARD EVALUATION LM49370RL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
LM49370RLTR
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Bits
12.30 STATUS REGISTER
This register is used to report the status of the device.
Note 30: The detection IRQ is cleared when this register has been written to.
Note 31: This field is cleared whenever the STATUS (0x18h) register has been written to.
0
1
2
3
4
5
6
HEADSET
STEREO_
HEADSET
GPIN1
GPIN2
TEMP
Field
BTN
MIC
This field is high when headset presence is detected (only valid if the detection system is enabled). (Note
30)
This field is high when a headset with stereo speakers is detected (only valid if the detection system is
enabled). (Note 30)
This field is high when a headset with a microphone is detected (only valid if the detection system is
enabled). (Note 30)
This field is high when the button on the headset is pressed (only valid if the detection system is enabled).
IRQ is cleared when the button has been released and this register has been written to. (Note 31)
If this field is high then a temperature event has occurred (write to this register to clear IRQ). This field will
stay high even when the IRQ is cleared so long as the event occurs. This bit is only valid whenever the
loudspeaker amplifier is turned off. (Note 31)
When GPIO_SEL is set to a readable configuration a digital input on GPIO1 can be read back here.
When GPIO_SEL is set to a readable configuration, a digital input on the relevant GPIO can be read back
here.
TABLE 31. STATUS (0x18h)
47
Description
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