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BCT8890
Low-Cost, Mono 2.2W Audio Power Amplifier
BCT8890
Low-Cost, Mono 2.2W Audio Power Amplifier
GENERAL DESCRIPTION
The BCT8890 audio power amplifier is ideal for portable audio devices with internal speakers. A bridge-tied load (BTL) architecture minimizes external component count, while providing high-quality audio reproduction. The device is available as adjustable gain amplifier, reducing component count.
A low-power shutdown mode disables the bias generator and amplifiers, reducing quiescent current consumption to less than 1uA. This device feature Broadchip’s industry-leading, comprehensive click-and-pop sup-pression that reduces audible clicks and pops during startup and shutdown.
The BCT8890 is available in 8-pin MSOP8 /DFN3x3-8L/DFN2x2-8L package. This device operates over the -40°C to +85°C extended temperature range.
APPLICATIONS
PDAs
Portable Instrumentation
FEATURES
2.5V to 5.5V Single-Supply Operation
PO at 10% THD+N,f=1KHz,VDD=5V
RL=8 Ω 1.5W (Typ.)
RL=4 Ω 2.2W (Typ.)
Less than 1uA Low-Power Shutdown Mode
64dB PSRR at 1KHz
Temperature Range: –40°C to 85°C
No Audible Clicks or Pops at Power-Up/Down
Available in MSOP8/DFN3x3-8L/DFN2x2-8L package
