Audio

PT7313E Datasheet PDF – Stereo Audio Processor – PTC

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Part Number: PT7313E, PT7313E-S

Function: Stereo Audio Processor for Car Audio

Package: 28 Pins, SOP, 300mil Type

Manufacturer: Princeton Technology Corp

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PT7313E image

Description

The PT7313E is an audio processor designed for versatile application, including 3 stereo input selectors with adjustable gain, master volume control with low frequency loudness compensation, individual output attenuator and tone control. It is a good solution for the car audio signal processing. Due to the high reliability requirement from the car audio business, the PT7313E improves both audio performance and input surge current capability that make PT7313E the best solution for the cost-effective car audio systems.

Pinout

PT7313E datasheet pinout

Features

1. 3 stereo inputs with gain selection, range from 0dB to +11.25dB in 3.75dB/step

2. Master volume from 0 dB to -78.75dB in 1.25dB/step

3. Speaker attenuator for balance and fader, range from 0dB to -38.75dB in 1.25dB/step

4. Each channel output can be muted individually.

5. Low frequency loudness compensation

6. Bass and Treble control, range from -14dB to +14dB in 2dB/step

7. Wide operation range (VDD = 4V to 10V)

 

Applications:

1. Car Audio

2. Home Audio System

3. Powered Speaker System

PT7313E Datasheet PDF Download


 

NS4165 Datasheet PDF – Audio Power Amplifier ( SOP8 )

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Part Number: NS4165

Function: 5W, high-efficiency, mono audio power amplifier

Package: eSOP8 Type

Manufacturer: NSI WAY

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NS4165 datasheet

 

Description

The NS4165 is a 5W high-efficiency mono audio power amplifier with switchable AB/D working mode, ultra-low EMI, no filter, and high efficiency.

The AB/D working mode can be switched between high and low levels through a control pin to match different application environments. Even in Class D working mode, NS4165 uses advanced technology to greatly reduce EMI interference within the full bandwidth range and minimize the impact on other components.

Its output requires no filter PWM modulation structure and feedback resistor built-in method to reduce external components, PCB area and system cost. NS4165 can provide up to 5W output power to a 2Ω load at a working voltage of 5V.

NS4165 has built-in over-current protection, over-heat protection and under-voltage protection functions to effectively protect the chip from damage under abnormal working conditions. And the use of spread spectrum technology to fully optimize the new circuit design, the efficiency of more than 85% is more suitable for low-voltage, high-power audio systems.

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NS4165 Pinout

NS4165 pinout

Features

1. AB/D type working mode switching, level setting
2. Output power: 3.2W (4Ω load/VDD=5V), 5W (2Ω load/VDD=5V)
3. Recommended working voltage: 3V～5.5V
4. 0.1%THD (1 W output power, 5V power supply, 4Ω load)
5. Excellent “power on, power down” noise suppression
6. Up to 85% efficiency
7. Overcurrent protection, overheating protection, undervoltage protection

Applications:

1. Bluetooth speaker
2. Loudspeaker
3. Other portable speakers

 

 

 

NS4165 Datasheet

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