Click to expand full text
CM4890/LM4890
0.8W Mono Class AB Audio Amplifier
General Description: CM4890 is an audio amplifier of class AB，when connected to a 4.5V ，THD+N less than 10%，will deliver0.8W to 4Ω load or 0.5W to a 8Ω load . The CM4890 is unity-gain stable and can be configured by external gain-setting resistors, It features a low-power consumption shutdown mode with very low shutdown current, and thermal shutdown protection. It also utilizes circuitry to reduce “clicks and pops” during device turn-on and turn-off. Features: 1. Power output at 4.2V , 4Ω load, THD+N<10%，is 0.8W . 2. Power out ut at 4.2V , 8Ω load, THD+N<10%，is 0.5W. 3. Operating supply voltage: VDD =2.7V~4.5V。 4. Typical shutdown current: 0.8uA。 5. Improved pop & click circuitry eliminates noise during turn-on and turn-off transitions 6.
CM4890 Datasheet
