Pin Assignments The PAM8905 is a high efficiency Class-D audio power amplifier with an integrated boost converter. It drives up to 1.9W (1% THD+N) into an 8Ω speaker. With 85% typical efficiency, the PAM8905 helps extend battery life when playing audio. 12 3 A PVDD SW BGND The built-in boost converter generates the voltage rail for the output stage. This.
battery tracking AGC function which adjusts the Class-D gain to limit battery current at lower battery voltage.
B OUT+
AGC
VBAT
C OUT-
EN
IN+
D PGND AGND
IN-
(TOP VIEW)
PAM8905 features DC input protection and all outputs are fully protected against output-to-output shorts. The PAM8905 is available in U-WLB1520-12 package.
Features
Built-In Battery Tracking Automatic Gain Control (AGC)
High Efficiency Integrated Boost Converter Over 85%
1.9W into an 8Ω Load from a 3.6V Supply
Operates from 2.8V to 5.2V
Efficient Class-D Prolongs Battery Life
Minimized ON/OFF Pop Noise
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No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | PAM8901 |
Diodes |
25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER | |
2 | PAM8902 |
Diodes |
MONO CLASS-D AUDIO AMPLIFIER | |
3 | PAM8902A |
Diodes |
MONO CLASS-D AUDIO AMPLIFIER | |
4 | PAM8902H |
Diodes |
MONO CLASS-D AUDIO AMPLIFIER | |
5 | PAM8904 |
Diodes |
18VPP OUTPUT PEIZO SOUNDER DRIVER | |
6 | PAM8904E |
Diodes |
18VPP OUTPUT PIEZO SOUNDER DRIVER | |
7 | PAM8904Q |
Diodes |
AUTOMOTIVE 18VPP OUTPUT PEIZO SOUNDER DRIVER | |
8 | PAM8906 |
DIODES |
36VPP OUTPUT PIEZO SOUNDER DRIVER | |
9 | PAM8907 |
DIODES |
31VPP OUTPUT PIEZO SOUNDER DRIVER | |
10 | PAM8908 |
Diodes |
25mW TRUE CAP FREE STEREO HEADPHONE AMPLIFIER | |
11 | PAM8908 |
PAM |
25-mW TrueCapFree Stereo Headphone Amplifier | |
12 | PAM8945 |
Diodes |
4.0W CLASS-G AUDIO AMPLIFIER |