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TPA6204A1: 1.7-W Mono Fully Differential Audio Power Amplifier
VDD
VO+
VO−
GND
To Battery
Bias
Circuitry
IN−
IN+
In From
DAC
SHUTDOWN
C(BYPASS)(1) 100 kΩ
40 kΩ
40 kΩ is optional.
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TPA6204A1SLOS429C –MAY 2004–REVISED MAY 2016
TPA6204A1 1.7-W Mono Fully Differential Audio Power Amplifier Features Designedfor Wirelessor Cellular Handsets and
PDAs 1.7W Into8Ω Froma 5-V Supplyat THD= 10%
(Typical) Low Supply Current:4 mA Typicalat5V Shutdown Current: 0.01 µA Typical Fast Start-Up With Minimal Pop Only Three External Components Improved PSRR (−80 dB) and Wide Supply
Voltage (2.5Vto 5.5V) for Direct Battery
Operation Fully Differential Design Reduces RF
Rectification −63-dB CMRR Eliminates Two Input Coupling
Capacitors Pin-to-Pin Compatible With TPA2005D1 and
TPA6211A1in SON Package Availablein3 mm×3 mm SON Package (DRB)
Applications Ideal for Wireless Handsets PDAs Notebook Computers
DescriptionThe TPA6204A1 device (sometimes referredto as
TPA6204)isa 1.7-W mono fully-differential amplifier
designed to drivea speaker with at least 8-Ω
impedance while consuming only 20 mm2 total
printed-circuit board (PCB) areain most applications.
The device operates from 2.5Vto 5.5V, drawing
only 4 mA of quiescent supply current. The
TPA6204A1 (TPA6204)is availablein the space-
saving3 mm×3 mm SON (DRB) package.
The TPA6204A1 (TPA6204) is ideal for PDA or
smartphone applications dueto features suchas −80- supply voltage rejection from 20 Hzto2 kHz,
improved RF rectification immunity, small PCB area,
anda fast start-up with minimal pop.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Application Circuit
