Analog Devices SSM2335CBZ-REEL

IC AMP AUDIO 4.28W MONO D 9WLCSP / Amplifier IC 1-Channel (Mono) Class D 9-WLCSP (1.46x1.46)

BALL RoHS Compliant Contains Lead Surface Mount Amplifier IC (Type) 85C 20kHz 60dB 4.28W

Audio Amp Speaker 1-CH Mono 4.28W Class-D 9-Pin WLCSP T/R

The SSM2335 is a fully integrated, high efficiency, Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 3 W of continuous output power with <1% THD + N driving a 3 Ω load from a 5.0 V supply. The SSM2335 features a high efficiency, low noise modulation scheme that requires no external LC output filters. The modu-lation continues to provide high efficiency even at low output power. It operates with 93% efficiency at 1.4 W into 8 Ω or 85% efficiency at 3 W into 3 Ω from a 5.0 V supply and has an SNR of >96 dB. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures. The SSM2335 has a micropower shutdown mode with a typical shutdown current of 20 nA. Shutdown is enabled by applying a logic low to the SD pin. The device also includes pop-and-click suppression circuitry. This suppression circuitry minimizes voltage glitches at the output during turn-on and turn-off, reducing audible noise on activation and deactivation. The fully differential input of the SSM2335 provides excellent rejection of common-mode noise on the input. Input coupling capacitors can be omitted if the input dc common-mode voltage is approximately VDD/2. The default gain of the SSM2335 is 18 dB, but users can reduce the gain by using a pair of external resistors . The SSM2335 is specified over the industrial temperature range of −40°C to +85°C. It has built-in thermal shutdown and output short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm wafer level chip scale package (WLCSP). Applications Mobile phones MP3 players Portable gaming Portable electronics Educational toys