CS8389E/CS8390E Description:
The CS8389E/CS8390E is a Class R audio power amplifier with built-in BOOST module and anti-crack function. The CS8389E BOOST to 6.2V provides 2X4.8W of constant power for a 4Ω load. The CS8390E BOOST to 7.3V provides 2x6.6 W constant power for 4Ω loads. The CS8389E/CS8390E pin is fully compatible, providing considerable power margin and maximum convenience for audio subsystem amplifier design and end product upgrade and replacement. Within the power supply range of a single lithium battery, the CS8389E/CS8390E is the best choice for portable speaker equipment.
The CS8389E/CS8390E's fully differential architecture and extremely high PSRR effectively improve the CS8389E/CS8390E's ability to suppress RF noise. No filter PWM modulation structure and built-in BOOST boost module, as far as possible to reduce the external device, in addition CS8389E/CS8390E built-in overcurrent protection and overheat protection, effectively protect the chip under abnormal working conditions will not be damaged.
The CS8389E/CS8390E is available in a small ESOP16L package with a rated operating temperature range of -40 ° C to 85 ° C.
CS8389E/CS8390E Features:Built-in BOOST module class R structure, integrated D class AB class two modes
Output power
CS8389E: PO at 10% THD+N, VIN = 3.7V
RL = 4 Ω 2X4.8W
CS8390E: PO at 10% THD+N, VIN = 3.7V
RL = 4 Ω 2X6.6W
Excellent "pop-noise" suppression
Operating voltage range: 2.7V to 5.5V
Built-in 20x fixed gain
4 anti-noise modes are available
Class-D structure without filtering
RL=4Ω+44uH@80% efficiency
High power supply rejection ratio (PSRR) : 70dB at 217Hz
Startup time (100ms)
Static current (20mA)
Low turn-off current (< 0.1µA)
Overcurrent protection, short circuit protection and overheat protection
Rohs compliant lead-free package
The CS8389E/CS8390E is available in an ESOP16L package
CS8389E/CS8390E Application:
Bluetooth speaker
Portable audio equipment
CS8389E/CS8390E Ordering Information: Product model | Encapsulated form | Device identification | Package size | Volume bandwidth | quantity |
CS8389E/CS8390E | eSOP16L | CS8389E/CS8390E XXXXXXXXXXX | 13`` | 12mm | 2500 |
CS8389E/CS8390E | eSOP16L | piping | 50 |
CS8389E/CS8390E Typical application circuit:

CS8389E/CS8390E Pin distribution:
CS8389E/CS8390E pin definition:
CS8389E/CS8390E Package diagram: