Datasheet Details
| Part number | TFA9881 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 407.52 KB |
| Description | 3.4 W PDM input class-D audio amplifier |
| Datasheet |
 TFA9881 Datasheet
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General Description
The TFA9881 is a mono, filter-free class-D audio amplifier in a 9-bump WLCSP (Wafer Level Chip-Size Package) with a 400 m pitch.
The digital input interface is an over-sampled Pulse Density Modulated (PDM) bit stream.
The TFA9881 receives audio and control settings via this interface.
Key Features
- Small outline WLCSP9 package: 1.3 1.3 0.6 mm.
- Wide supply voltage range (fully operational from 2.5 V to 5.5 V).
- High efficiency (90 %, 4 /20 H load) and low power dissipation.
- Quiescent power:.
- 6.5 mW (VDDD = 1.8 V, VDDP = 3.6 V, 4 /20 H load, fclk = 2.048 MHz).
- 7.8 mW (VDDD = 1.8 V, VDDP = 3.6 V, 4 /20 H load, fclk = 6.144 MHz).
- Output power:.
- 1.4 W into 4 at 3.6 V supply (THD = 1 %).
- 2.7 W into 4 at 5.0 V supply (THD = 1 %).
- 3.4.