Despite its simple design, it achieves the necessary and sufficient functions for a Class D amplifier, releasing 20W class 2.0ch and 2.1ch models.
The "IS31AP2111" supports 2.0ch (20W+20W) or Mono (40W) output, while the "IS31AP2121" is compatible with 2.1ch. It supports high-resolution I2C input and full digital control. It features a 20-band equalizer, 3D surround, digital volume, mixing, dynamic range control, DC block HPF, and bass/treble control, among various other functions. It can be applied in Bluetooth speakers, TVs and surround systems, projectors, electronic musical instruments, and more.
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【Main Specifications】 ■I2S Input: 16/18/20/24bit Fs: 32KHz/44.1KHz/48KHz/64KHz/88.2KHz/96KHz/128KHz/176.4KHz/192KHz ■Power Supply Voltage: 3.3V for digital circuits, 10V–26V for speaker driver ■IS31AP2111: 20W 8Ω Stereo (BTL) / 40W 4Ω Mono (PBTL)* ■IS31AP2121: 25W 8Ω Stereo (BTL) / 50W 4Ω Mono (PBTL)* or 12W 4Ω Stereo (SE) + 25W 8Ω (BTL) for subwoofer* *When using a 24V power supply ■Sound Processor Functions 20-band equalizer, 3D surround, digital volume, mixing, etc. ■Anti-pop noise design ■Short circuit protection, overheating protection (self-leveling), etc. ■I2C input control ■Package: 24-pin eTSSOP (IS31AP2111), 48-pin eLQFP (IS31AP2121)
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| Model number | overview |
|---|---|
| IS31AP2121 |
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Company information
In the highly competitive semiconductor industry, ISSI aims to provide our customers with "The Lowest Total Cost of Ownership" as our guiding principle. Rather than focusing on short-term perspectives, we strive to be chosen by our customers from a long-term viewpoint. We will continue to address various business opportunities and solve all challenges while always keeping an eye on market and technological changes.