Vehicle Sound for Pedestrians Amplifier IC (VSP)

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Product Use

This Vehicle Sound for Pedestrians Amplifier IC (VSP) is especially developed for Automotive use.

The Amplifier IC satisfies all the requirements of Federal Motor Vehicle Safety Standard No. 141, Minimum Sound Requirements for Hybrid and Electric Vehicles.

The class-D Stereo Amplifier IC requires 10 VDC to 30 VDC power.

The VSP Amplifier IC (MRXVSP2D) is supplied in DIP-20 package.

Precision operation is assured by built in IC oscillator.

Vcc Power Input Pin is connected to nominal +12 VDC that has a Common Ground with the IC sound Input and Output as well as Control lines.

The 2 Digital Control Inputs control the four levels of the D Class amplifier gain.

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Class D Amplifier basics

• Vehicle Sound for Pedestrians (VSP) class D audio Amplifier description
  
  

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Features

• 15 W, class-D, stereo audio power amplifier
• Nominal Voltage 12 V
• Operates from 10 V to 30 V
• 4 or 8 Ohm Speakers
• FMVSS #141 compliant
• Thermal and Short-Circuit Protection with Auto Recovery Feature
• Efficient Class-D Operation
• Four Digitally Selectable, Fixed Gain Settings
• 20-pin DIP Package

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Connections

MRXVSP2D Pins Top View from Top Left(1) to Top Right(20)

1. PVCCL       Power supply for left channel H-bridge
2. SD              Shutdown signal for IC (low = disabled, high = operational).
3. MUTE         Mute signal for quick disable/enable of outputs
4. LIN              Audio input for left channel
5. RIN              Audio input for right channel
6. BYPASS     Reference for pre-amplifier inputs
7. AGND               (Common System Ground)
8. AGND               (Common System Ground)
9. VCLAMP     Internally generated voltage supply for bootstrap capacitors
10. PVCCR       Power supply for right channel H-bridge
11. PGNDR       Power ground for right channel H-bridge
12. ROUT          H-bridge Negative output for right channel
13. BSR            Bootstrap I/O for right channel
14. GAIN1         Gain select most significant bit
15. GAIN0         Gain select least significant bit
16. AVCC         High-voltage analog power supply
17. AVCC         High-voltage analog power supply
18. BSL            Bootstrap I/O for left channel
19. LOUT          H-bridge Positive output for left channel
20. PGNDL       Power ground for left channel H-bridge

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Product Specifications

Power source voltage (min/max)	VCC	10 / 30	V
Command Signal Voltage (min/max)	VS	3 / 5	V DC
Power Output (max)	Pon	2 x 15	W
Operating Temperature	Ton	20 to 140 -6 to 60	°F °C

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Pricing

US $15.00 each