The TS4962 is designed to operate over a wide 2.4V to 5.5V supply voltage
range. Its quiescent current with no input signal is 2.3mA typical, and Standby
current when powered down using its active-low control line is just 10nA. Pop
and Click reduction circuitry provides low on/off switching noise while
allowing the amplifier to start within 5ms. The gain is set using two external
resistors.
A fully differential design reduces RF rectification effects and eliminates
the need for a bypass capacitor. Output power is 3W into 4 ohms or 1.75W into 8
ohms, at 10% maximum THD+N (Total Harmonic Distortion plus Noise), on a 5V
supply. At 1% maximum THD+N, output power is 2.3W into 4 ohms on a 5V supply,
or 0.75W on a 3V supply. Signal to noise ratio is typically 85dB.
This physically small amplifier is ideal for use in mobile phones and
speakerphones – where its high efficiency will result in longer talk-times – as
well as for bringing new features to PDAs and laptop computers. It is available
in a lead-free, 1.6mm square, 9-bump flip-chip package, and is supported by a
development board, which includes the device pre-mounted onto a flip-chip to
DIP adapter for easier handling during evaluation. Available in production
volume now the device is priced at $0.55 in quantities of 5000 pieces.
Further information is also available at www.st.com/stdlinear
About ST’s MPA Group (Micro, Power, Analog)
STMicroelectronics is a world leader in offering complete system solutions that
leverage its rich portfolio of Microcontrollers, Power and Analog products;
advanced process and design technologies; and application expertise. MPA’s
emphasis on solutions allows the Company to minimize time-to-market for all
customers worldwide in existing and emerging applications.
