Packaging information
Package | Pins DSBGA (YZR) | 36 |
Operating temperature range (°C) |
Package qty | Carrier 250 | SMALL T&R |
Features for the LM49155
Description for the LM49155
The LM49155 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. The
LM49155 combines a Noise Suppression microphone amplifier, a 1.35W mono class D amplifier with ALC, class AB earpiece driver
with AGC, a high efficiency, stereo, ground referenced headphone amplifier with click pop suppression and I
The LM49155 features analog fully differential input, and differential output microphone amplifier designed to reduce background acoustic noise, while delivering superb speech clarity in voice communication applications. Downlink SNR enhancement with an advanced acoustic AGC technology to adjust output levels.
The LM49155 speaker amplifier features National’s unique output limiter that provides both a no-clip feature and speaker protection.
The E
The LM49155 is available in an ultra-small 36-bump micro SMD package (3.434mm x 3.459mm x 0.6mm).