Summary
The AK7835 series are monaural audio Class-D amplifiers that deliver 1.55W per channel into 8ohm load from 5V supply.
Class-D operation ensures higher efficiency and low power consumption. AKM original Filter-free solution enables “space-saving” layout and BOM cost reduction. Since AK7835 uses very low EMI design, it provides simple adoption for RF-related applications, such as mobile phones, portable multimedia players and handheld gaming consoles.
AK7835 is available in both 9-pin WLCSP and 10-pin TMSOP packages. Gain is selectable from 4(V/V) or 5(V/V).

Features

1. Monaural Class-D Amplifier
   - 1.55W into 8ohm load (THD+N=10%, VDD=5V)
   - 2.4W into 4ohm load (THD+N=10%, VDD=5V, AK7835S4 and AK7835B4 applied)
   - Filter-free for output stage
   - Low EMI noise
   - Supply current with no-input: 1.3mA
   - Shutdown current: 0.1A
   - Fixed gain variation: 12dB(AK7835S4, AK7835B4), 15dB(AK7835S5, AK7835B5)
   - Short-circuit and thermal protection
2. Input amplifier
   - Analogue signal input for differential or single-ended
   - Pop noise suppressor
3. Operational voltage and temperature
   - Power supply: 2.5V to 5.5V
   - Operational temperature: -30deg to +85deg
4. Package
   - AK7835B4, AK7835B5: 9-pin WLCSP (1.5mm 1.5mm )
   - AK7835S4, AK7835S5: 10-pin TMSOP (3mm 4mm)