The A21SP16 is a differential class-D BTL power amplifier. It is able to drive up to 2.3 W into a 4 Ω load and 1.4 W into a 8 Ω load at 5 V. It achieves outstanding efficiency (88% typ.) compared to classical Class-AB audio amps.
The gain of the device can be controlled via two external gain-setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function (active low) allows the reduction of current consumption to 10 nA typ.
|DS10233: 3 W filter-free class-D audio power amplifier||1.0||875 KB|
|ST offering in Wearable - Analog and Mixed Signal Portfolio||3.0||1 MB|
|ST’s solutions for mobile devices||3.2||3 MB|
|Part Number||Package||Packing Type||Operating Temperature (°C) (min)||Operating Temperature (°C) (max)||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|A21SP16J||Chip Scale Package 0.5mm pitch||Tape And Reel||-||-||Active : Product is in volume production||0.4||1000||NEC||EAR99||-||MORE INFO||DISTRIBUTOR AVAILABILITY|
|Part Number||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
|A21SP16J||Active||Chip Scale Package 0.5mm pitch||Industrial||Ecopack3|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.