0
ACTIVE
Audio input type |
Analog Input |
Architecture |
Class-AB |
Speaker channels (max) |
Stereo |
Control interface |
GPIO |
Output power (W) |
2.2 |
Power stage supply (max) (V) |
5.5 |
Power stage supply (min) (V) |
2.7 |
THD + N at 1 kHz (%) |
0.05 |
Load (min) (Ω) |
3 |
Analog supply voltage (min) (V) |
2.7 |
Analog supply voltage (max) (V) |
5.5 |
Rating |
Catalog |
Operating temperature range (°C) |
-20 to 85 |
HTSSOP (PWP)-28-62.08 mm² 9.7 x 6.4
All trademarks are the property of their respective owners.
The LM4938 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω with less than 1.0% THD or 2.2W into 3Ω with less than 1.0% THD.
Boomer audio integrated circuits were designed specifically to provide high quality audio while requiring a minimum amount of external components. The LM4938 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications.
The LM4938 features an externally controlled, low-power consumption shutdown mode, and both a power amplifier and headphone mute for maximum system flexibility and performance.
Note 1: When properly mounted to the circuit board, LM4938MH will deliver 2W into 4Ω. See Application Information section for more information.
Note 2: An LM4938MH that has been properly mounted to the circuit board and forced-air cooled will deliver 2.2W into 3Ω.
WELL LINK CHIPS GROUP CO.,LIMITED FLAT/RM 1802 BEVERLY HOUSE 93-107 LOCKHART ROAD WANCHAI HK
