ADA987 · Adafruit
Adafruit product #987 — built on MAX98306.
| Part number | ADA987 |
|---|---|
| Manufacturer | Adafruit |
| Category | Audio › Amplifiers & Audio Modules |
| Pins | 21 |
| Power | 3.7 W |
Stereo 3.7W Class D Audio Amplifier - MAX98306 pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | VDD | power | |
| 2 | GND | ground | |
| 3 | SHUTDOWN | bidirectional | |
| 4 | LOUT- | bidirectional | |
| 5 | IN_LEFT+ | bidirectional | |
| 6 | LOUT+ | bidirectional | |
| 7 | IN_LEFT- | bidirectional | |
| 8 | IN_RIGHT- | bidirectional | |
| 9 | ROUT+ | bidirectional | |
| 10 | IN_RIGHT+ | bidirectional | |
| 11 | ROUT- | bidirectional | |
| 12 | GAIN2 | bidirectional | |
| 13 | GAIN1 | bidirectional | |
| 14 | GND | ground | |
| 15 | 15DB | bidirectional | |
| 16 | VDD | power | |
| 17 | 9DB | bidirectional | |
| 18 | GAIN1 | bidirectional | |
| 19 | GAIN1 | bidirectional | |
| 20 | GAIN1 | bidirectional | |
| 21 | GAIN1 | bidirectional |
Schematic symbol and footprint
Schematic symbol
Footprint: Adafruit MAX98306 Stereo 3.7W Class D Audio Amplifier (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Where to buy
| Supplier | Stock | Price | Status | |
|---|---|---|---|---|
| Mouser | 2,429 | $8.95 (1+) | View |
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
Related parts
Adafruit I2S 3W Class D Amplifier Breakout - MAX98357AADA3006
Adafruit I2S Stereo Decoder - UDA1334A BreakoutADA3678
Adafruit MIDI FeatherWing KitADA4740
Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302ADA2130
CO2 Unit with Temperature and humidity Sensor (SCD40)U103
Stereo 2.1W Class D Audio Amplifier - TPA2012ADA1552
Stereo 2.8W Class D Audio Amplifier - I2C Control AGC - TPA2016ADA1712
Stereo 20W Class D Audio Amplifier - MAX9744ADA1752