LM4666SD National Semiconductor, LM4666SD Datasheet - Page 5

• Manufacturer Part Number: LM4666SD
• Description: IC AMP AUDIO 1.2W STER D 14LLP
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4666SD

• Output Type: 2-Channel (Stereo)
• Max Output Power X Channels @ Load: 1.2W x 2 @ 8 Ohm
• Voltage - Supply: 2.8 V ~ 5.5 V
• Features: Depop, Differential Inputs, Short-Circuit Protection, Shutdown
• Mounting Type: Surface Mount
• Package / Case: 14-LLP
• For Use With: LM4666SDBD - BOARD EVALUATION LM4666SD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4666SD/NOPB; LM4666SDTR

External Components Description
Typical Performance Characteristics
(Figure 1)
Components
1.
2.
P
P
V
V
C
C
OUT
OUT
DD
DD
S
I
= 5V, R
= 3V, R
= 100mW/Channel, 30kHz BW
= 100mW/Channel, 30kHz BW
THD+N vs Frequency
THD+N vs Frequency
Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing
section for information concerning proper placement and selection of the supply bypass capacitor.
Input AC coupling capacitor which blocks the DC voltage at the amplifier’s input terminals.
L
L
= 15µH + 8Ω + 15µH
= 15µH + 4Ω + 15µH
20055827
20055825
Functional Description
(Note 10)
5
P
V
V
THD+N vs Output Power/Channel
OUT
DD
DD
= 3V, R
= 5V, R
= 100mW/Channel, 30kHz BW
THD+N vs Frequency
f = 1kHz, 22kHz BW
L
L
= 15µH + 8Ω + 15µH
= 15µH + 8Ω + 15µH
20055830
20055826
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