Datasheet Texas Instruments LM4954 — 数据表

LM4954
www.ti.com SNAS292B – JUNE 2005 – REVISED APRIL 2013 LM4954 Boomer™ Audio Power Amplifier Series High Voltage 3 Watt Audio Power
Amplifier
Check for Samples: LM4954 FEATURES DESCRIPTION The LM4954 is an audio power amplifier primarily
designed for demanding applications in mobile
phones and other portable communication device
applications. It is capable of delivering 2.4 Watts of
continuous average power to an 8Ω BTL load with
less than 1% THD+N from a 7VDC power supply. 1 23 No Output Coupling Capacitors, Snubber
Networks or Bootstrap Capacitors Required
Unity Gain Stable
Externally Configurable Gain
Ultra Low Current Active Low Shutdown Mode
BTL Output can Drive Capacitive Loads Up to
100pF
“Click and Pop” Suppression Circuitry
2.7V -9.0V Operation
Available in Space-Saving DSBGA Package APPLICATIONS Mobile Phones
PDAs KEY SPECIFICATIONS Wide Power Supply Voltage Range, 2.7 ≤ VDD ≤
9V
Output Power: VDD = 7V, 1% THD+N, 2.4W
(Typ)
Quiescent Power Supply Current, 3mA (Typ) …