ISL99201 NOT RECOMMENDED FOR NEW DESIGNS
NO RECOMMENDED REPLACEMENT
contact our Technical Support Center at
1-888-INTERSIL or www.intersil.com/tsc DATASHEET
FN6742
Rev 2.00
November 1, 2013 Filterless High Efficiency 1.5W Class D Mono Amplifier
The ISL99201 is a fully integrated high efficiency class-D
mono amplifier. It is designed to maximize performance for
mobile phone applications. The application circuit requires a
minimum requirement of external components and operates
from a 2.4V to 5.5V input supply. It is capable of delivering
1.4W of continuous output power with less than 1% THD+N
driving a 8О© load from a 5V supply. Features The ISL99201 features a high-efficiency, low-noise
modulation scheme. It operates with 86% efficiency at
400mW into 8О© and has a signal-to-noise ratio (SNR) that is
better than 95dB. The ISL99201 has a micro-power
shutdown mode with a typical shutdown current of 200nA.
Shutdown is enabled by applying a logic low to the SD pin. Optional SYNC pin for master/slave operation without
interface The architecture of the devices allows it to achieve very low
level of pop-and-click. This minimizes voltage glitches at the
output during turn-on and turn-off, thus reducing audible
noise on activation and deactivation. Only one external component required (Fixed gain mode) The fully differential input of the ISL99201 provides excellent …