3.2W Mono Class-D Audio Power Amplifier
www.ti.com
TPA2038D1
SLOS697A – AUGUST 2011 – REVISED OCTOBER 2012
3.2 W Mono Class-D Audio Power Amplifier With Selec...
Description
www.ti.com
TPA2038D1
SLOS697A – AUGUST 2011 – REVISED OCTOBER 2012
3.2 W Mono Class-D Audio Power Amplifier With Selectable Gain and Auto-Recovering Short-Circuit Protection
Check for Samples: TPA2038D1
FEATURES
1
Filter-Free Mono Class-D Speaker Amp GAIN Pin Selects Between 6 dB and 12 dB 3.2 W into 4 Ω from 5 V supply at 10% THD+N Powerful Mono Class-D Speaker Amplifier
– 1% at 1.4 W into 8 Ω from 5 V Supply – 1% at 2.5 W into 4 Ω from 5 V Supply Integrated Image Reject Filter for DAC Noise Reduction Low Output Noise of 20 μV Low Quiescent Current of 1.5 mA Auto-Recovering Short-Circuit Protection Thermal-Overload Protection 9-Ball 1,21 mm × 1,16 mm 0,4 mm Pitch WCSP
APPLICATIONS
Wireless or Cellular Handsets and PDAs
Portable Navigation Devices
General Portable Audio Devices
DESCRIPTION
The TPA2038D1 is a 3.2 W into 4-ohm (10% THD) high efficiency filter-free class-D audio power amplifier. The GAIN pin sets gain to either 6 dB or 12 dB.
Features like 95% efficiency, 1.5 mA quiescent current, 0.5 μA shutdown current, 81 dB PSRR, 20 μV output noise, and improved RF immunity make the TPA2038D1 class-D amplifier ideal for cellular handsets. A start-up time is within 4 ms with no turnon pop.
The TPA2038D1 is available in a 1.21 mm x 1.16 mm, 0.4 mm pitch wafer chip scale package (WCSP).
APPLICATION CIRCUIT
GAIN
Gain Select
IN+
+ – IN-
Internal Oscillator
PWM
EN Bias Circuitry
To battery VDD
Cs
VOH-Bridge
VO+
GND
TPA 2038D1 9-BALL 0.4mm PITC...
Similar Datasheet