Audio

LM48511 Datasheet PDF – Audio Amplifier

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Part Number: LM48511

Function: 3-W, Ultra-Low EMI, Filterless, Mono, Class D Audio Power Amplifier

Package: WQFN 24 Pin Type

Manufacturer: Texas Instruments

Pinouts:

LM48511 datasheet

Description

The LM48511 integrates a boost converter with a high efficiency Class D audio power amplifier to provide 3W continuous power into an 8Ω speaker when operating from a 5V power supply. When operating from a 3V to 4V power supply, the LM48511 can be configured to drive 1 to 2.5W into an 8Ω load with less than 1% distortion (THD+N).

The Class D amplifier features a low noise PWM architecture that eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design. A selectable spread spectrum modulation scheme suppresses RF emissions, further reducing the need for output filters.

Features

1. 3-W Output into 8 Ω at 5 V With THD+N = 1%

2. Selectable spread spectrum mode reduces EMI

3. 80% Efficiency

4. Independent regulator and amplifier shutdown controls

5. Dynamically Selectable Regulator Output Voltages

6. Filterless Class D

7. 3-V to 5.5-V Operation

8. Low shutdown current

9. Click and pop suppression

 

LM48511 Datasheet PDF Download


LM48511 pdf

Other data sheets are available within the file:

LM48511SQ/NOPB, LM48511SQX/NOPB

PT2399 Datasheet – Echo Audio Processor IC ( PDF ) – Princeton

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This is one of the Processor types.

Part Number: PT2399, PT2399S

Function : Echo Processor IC

Package: Available in 16 pins, DIP or SO Type

Manufacturer: Princeton Technology Corp

See the preview image and the PDF file for more information.

Image

pt2399-echo-audio-processor

Description

PT2399 is an echo audio processor IC utilizing CMOS Technology which is equipped with ADC and DAC, high sampling frequency and an internal memory of 44K Digital processing is used to generate the delay time, it also features an internal VCO circuit in the system clock, thereby, making the frequency easily adjustable. PT2399 boast of very low distortion (THD<0.5%) and very low noise (No<-90dBV), thus producing high quality audio output. The pin assignments and application circuit are optimized for easy PCB layout and cost saving advantage.

 

PT2399 Pinout

pt2399-datasheet-pinout

 

Features

1. CMOS Technology
2. Least External Components
3. Auto Reset Function
4. Low Noise, No<-90dBV Typical
5. Low Distortion, THD<0.5% Typical
6. External Adjustable VCO

 

PT2399 Datasheet


 

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