The CS8326S is a Class R audio power amplifier with a built-in BOOST module. Built-in BOOST module at 7.5V. It can provide a constant power of 7W for a 4Ω load. The design of Class AB and Class D switchable mode minimizes the interference of the power amplifier to FM in the audio subsystem. The CS8326S provides the ultimate power output in the supply voltage range of the lithium battery, making the CS8326S the best choice for portable speaker equipment, especially amplifier products.
The fully differential architecture and extremely high PSRR of CS8326S effectively improve the ability of CS8326S to suppress RF noise. No filter PWM modulation structure and built-in BOOST boost module, as far as possible to reduce the peripheral devices, in addition CS8326S built-in overcurrent protection, short circuit protection and overheating protection, effectively protect the chip under abnormal working conditions will not be damaged.
The CS8326 is available in a small SOP16L package with a rated operating temperature range of -40 ° C to 85 ° C.
Built-in BOOST module, Class AB class D class integration of special class R structure
Output power
PO at 10% THD+N, VIN = 3.7V
RL = 4Ω 7.0W
PO at 1% THD+N, VIN = 3.7V
RL = 4Ω 5.5W
Excellent "pop-noise" suppression
Operating voltage range: 2.5V to 5.0V
MUCH function: At the same time, the power amplifier is silent, and the PVDD can output current up to 4A
Class-D structure without filtering
72% efficiency
High power supply rejection ratio (PSRR) : 70dB at 217Hz
Startup time (260ms)
Static current (10mA)
Low turn-off current (< 0.1μA)
Overcurrent protection, short circuit protection and overheat protection
Available in SOP16L package
Portable Bluetooth speaker
megaphone
Product model | Encapsulation form | Packaging type | quantity |
CS8326S | SOP16L | piping | 50 |
S8326S Typical application circuit diagram:
Differential input:
Single-ended input:
CS8326S Pin distribution:
CS8326S pin definition:

CS8326S package diagram:
