LM4953SD ,Ground-Referenced, Ultra Low Noise, Ceramic Speaker DriverPin DescriptionsPin Name Function1 SD Active Low Shutdown2CP Charge Pump Power SupplyVDD3 CCP+ Posi ..
LM4960SQ ,Piezoelectric Speaker DriverApplicationsThe LM4960 is unity-gain stable and can be configured byn Mobile phoneexternal gain-set ..
LM4961LQ ,Ceramic Speaker DriverApplicationsturn-on and turn-off transitions.n CellphoneThe LM4961 is unity-gain stable and can be ..
LM4961LQ ,Ceramic Speaker DriverFeaturesous average power, with less than 1% distortion (THD+N)n Pop & click circuitry eliminates n ..
LM4961LQX ,Ceramic Speaker DriverElectrical Characteristics V = 4.2VDDThe following specifications apply for V = 4.2V, A = 26dB, R = ..
LM4970SD ,Audio Synchronized Color LED DriverPin Description1 FILT Low Pass Filter Input2V Power Supply PinDD3M Mono Audio InputIN4 GND Ground5L ..
LP2986AIMM-3.0 ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorFeaturesn Ultra low dropout voltageThe LP2986 is a 200 mA precision LDO voltage regulatorwhich offe ..
LP2986AIMM-3.0 ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorApplicationsdrops approximately 5% below nominal.n Cellular PhonePrecision Output: The standard pro ..
LP2986AIMM-3.0 ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorApplicationsdrops approximately 5% below nominal.n Cellular PhonePrecision Output: The standard pro ..
LP2986AIMM-3.0/NOPB ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage Regulator 8-VSSOP -40 to 125Maximum Ratings(1)(2)over operating free-air temperature range (unless otherwise noted)MIN MAX UNIT ..
LP2986AIMM-3.3 ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorLP2986 Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorJanuary 2002LP2986 ..
LP2986AIMM-5.0 ,Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorLP2986 Micropower, 200 mA Ultra Low-Dropout Fixed or Adjustable Voltage RegulatorJanuary 2002LP2986 ..
LM4953SD
Ground-Referenced, Ultra Low Noise, Ceramic Speaker Driver
LM4953
Ground-Referenced, Ultra Low Noise, Ceramic Speaker
Driver
General DescriptionThe LM4953isan audio power amplifier designedfor driving
Ceramic Speakerin portable applications. When poweredby 3.6V supply,itis capableof forcing 12.6Vpp acrossa 2µF
+30Ω bridge-tied-load (BTL) with less than1% THD+N.
Boomer audio power amplifiers were designed specificallyto
provide high quality output power witha minimal amountof
external components. The LM4953 does not require boot-
strap capacitors,or snubber circuits. Thereforeitis ideally
suitedfor display applications requiring high power and mini-
mal size.
The LM4953 featuresa low-power consumption shutdown
mode. Additionally,the LM4953 featuresan internal thermal
shutdown protection mechanism.
The LM4953 contains advanced pop& click circuitry that
eliminates noises which would otherwise occur during
turn-on and turn-off transitions.
The LM4953is unity-gain stable and canbe configuredby
external gain-setting resistors.
Key Specifications Quiescent Power Supply Current (Vdd= 3V) 7mA(typ) BTL Voltage Swing
(2µF+30Ω load, 1% THD+N,
Vdd= 3.6V) 12.6Vpp (typ) Shutdown Current 1µA (max)
Features Pop& click circuitry eliminates noise during turn-on and
turn-off transitions Low, 1µA (max) shutdown current Low, 7mA (typ) quiescent current 12.6Vpp mono BTL output, load= 2µF+ 30Ω Thermal shutdown Unity-gain stable External gain configuration capability
Applications Cellphone PDA
Typical ApplicationFIGURE1. Typical Application Circuit
September 2005
LM4953
Ground-Referenced,
Ultra
Low
Noise,
Ceramic
Speaker
Driver
