LM49101TM/NOPB National Semiconductor, LM49101TM/NOPB Datasheet - Page 18

• Manufacturer Part Number: LM49101TM/NOPB
• Description: IC AUDIO SUBSYSTM 1.3W AB 25USMD
• Manufacturer: National Semiconductor
• Series: Boomer®, PowerWise®r
• Type: Class ABr

Specifications of LM49101TM/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.3W x 1 @ 8 Ohm; 45mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: Depop, Differential Inputs, I²C, Shutdown, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Operational Class: Class-AB
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 90dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 1.7/1.8/2.7V
• Dual Supply Voltage (max): 2.9/5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49101TMTR

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Bit
0
1
3
4
Turn_On_Time
LS (EP Mode)
GAMP_SD
Power_On
Name
This bit is a master shutdown control bit and sets the device to be on or off.
This bit sets the turn on time of the device.
This bit enables EP Mode reducing loudspeaker output stage bias current by 500μA.
This bit is used to reduce I
TABLE 3. General Control Register
Value
Value
Value
Value
0
1
0
1
0
1
0
1
Master power off, device disable.
Master power on, device enable.
Normal Turn-on time
Fast Turn-on time
Normal loudspeaker power amplifier operation.
Enables EP Mode reducing loudspeaker output stage bias current
by 500μA.
Normal operation of all gain amplifiers.
Disables the input gain amplifiers that are not in use to reduce
current from V
8, 10.
18
DD
by shutting down gain amplifiers not in use.
DD
LS. Recommended for Output Modes 1, 2, 4, 5,
Description
Status
Status
Status