LM49450SQ/NOPB National Semiconductor, LM49450SQ/NOPB Datasheet - Page 17

• Manufacturer Part Number: LM49450SQ/NOPB
• Description: IC AUDIO SUBSYSTEM 2.5W D 32LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM49450SQ/NOPB

• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 2.5W x 2 @ 4 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, DAC, Depop, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 32-LLP
• Amplifier Class: D
• No. Of Channels: 2
• Output Power: 1.2W
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 8ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: LLP
• Rohs Compliant: Yes
• For Use With: LM49450SQEVAL - BOARD EVAL FOR LM49450
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM49450SQ; LM49450SQ; LM49450SQTR

DAC Input, Internal Reference, Headphone Mode
DAC Input, External Reference, Speaker Mode
HPV
V
DD
DD
R
= 3.6V, V
L
= 2.5V, V
Efficiency vs Output Power
= 4Ω, f = 1kHz, Speaker Mode
PSRR vs Frequency
PSRR vs Frequency
RIPPLE
RIPPLE
= 200mV
= 200mV
P-P
P-P
, R
, R
L
L
= 8Ω
= 32Ω
300455g2
300455d8
300455e5
17
HPV
V
DD
DD
R
Analog Input, Headphone Mode
= 3.6V, V
L
= 2.5V, V
Analog Input, Speaker Mode
Efficiency vs Output Power
= 8Ω, f = 1kHz, Speaker Mode
PSRR vs Frequency
PSRR vs Frequency
RIPPLE
RIPPLE
= 200mV
= 200mV
P-P
P-P
, R
, R
L
L
= 8Ω
30045520
= 32Ω
300455h5
300455e7
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