LM4855ITL/NOPB National Semiconductor, LM4855ITL/NOPB Datasheet - Page 7

• Manufacturer Part Number: LM4855ITL/NOPB
• Description: IC AMP AUDIO PWR 1.5W AB 18USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class ABr

Specifications of LM4855ITL/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.5W x 1 @ 4 Ohms; 115mW x 2 @ 32 Ohms
• Voltage - Supply: 2.6 V ~ 5 V
• Features: Depop, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 18-MicroSMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4855ITL; LM4855ITLNOPB; LM4855ITLNOPBTR; LM4855ITLNOPBTR; LM4855ITLTR

External Components Description
Typical Performance Characteristics
Components
1.
2.
3.
C
C
C
IN
S
B
This is the input coupling capacitor. It blocks the DC voltage and couples the input signal to the amplifier’s
input terminals. C
1/(2πR
This is the supply bypass capacitor. It filters the supply voltage applied to the V
the LM4855’s PSRR.
This is the BYPASS pin capacitor. It filters the V
THD+N vs Frequency
THD+N vs Frequency
LM4855LQ
i
C
IN
).
IN
also creates a highpass filter with the internal resistor R
200395B1
200395F0
Functional Description
7
DD
/ 2 voltage and helps maintain the LM4855’s PSRR.
THD+N vs Frequency
THD+N vs Frequency
LM4855LQ
i
(Input Impedance) at f
DD
pin and helps maintain
200395B2
200395F1
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