The SA58670A is a stereo, filter-free class-D audio amplifier which is available in an HVQFN20 package with the exposed Die Attach Paddle (DAP). The SA58670A features independent shutdown controls for each channel. The gain may be set at 6 dB, 12 dB, 18 dB or 24 dB with gain select pins G0 and G1. Improved immunity to noise and RF rectification is increased by high PSRR and differential circuit topology.Fast start-up time and small package makes it an ideal choice for both cellular handsets and
The SA58670A is a stereo, filter-free class-D audio amplifier designed for applications such as cellular handsets, PDAs, portable DVD players, and USB speakers. It features independent shutdown controls for each channel and allows the gain to be set at 6 dB, 12 dB, 18 dB, or 24 dB using select pins.
The device delivers up to 2.1 W per channel into a 4 Ω load at 5.0 V supply voltage. It offers high power supply rejection ratio (PSRR) and includes thermal and short-circuit shutdown protection. The amplifier is housed in a compact 4 mm x 4 mm HVQFN20 package with an exposed Die Attach Paddle for heat dissipation.
| Output power (8 Ω, 5.0 V) | 1.4 W/channel |
|---|---|
| Supply voltage range | 2.5 V to 5.5 V |
| Selectable gain options | 6 dB, 12 dB, 18 dB, 24 dB |
| Power supply rejection ratio (PSRR) | -77 dB at 217 Hz |
| Fast start-up time | 3.5 ms |
| Package type | HVQFN20 with exposed DAP |
The SA58670A operates with a supply voltage between 2.5 V and 5.5 V.
It is ideal for wireless handsets, PDAs, portable DVD players, USB speakers, and notebook PCs.