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Product Detailed Parameters
- Description：IC AMP CLASS D STER 2.1W 20HVQFN
- Series：-
- Mfr：NXP USA Inc.
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class D
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：2.1W x 2 @ 4Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：20-HVQFN (4x4)
- Package / Case：20-VFQFN Exposed Pad
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The SA58670ABS,115 is a stereo, filter-free Class-D audio amplifier manufactured by NXP Semiconductors. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers up to 2.1 W per channel into a 4 Ω load at 5.0 V. The device features independent shutdown controls for each channel and selectable gain settings of 6 dB, 12 dB, 18 dB, or 24 dB via G0 and G1 pins. It incorporates high PSRR and differential circuit topology for improved noise immunity. The component includes thermal and short-circuit protection and utilizes an HVQFN20 package with an exposed Die Attach Paddle.
Feature Summary
- Stereo Class-D architecture providing filter-free operation
- Independent shutdown control for left and right channels
- Configurable closed-loop voltage gain selection
- Integrated thermal and short-circuit protection
Applications
- Wireless and cellular handsets
- Portable DVD players
- USB speakers
- Notebook PCs
- Educational toys
Procurement Notes
Verify the specific ordering suffix against current NXP documentation to confirm package details and availability status. Confirm that the HVQFN20 package variant matches the design requirements. Check for any updates regarding lead-free compliance and material declarations in the latest datasheet revision before finalizing procurement specifications.
Selection Notes
Select this component for applications requiring low power consumption and high efficiency in portable devices. Ensure the PCB layout accommodates the HVQFN20 package dimensions and provides adequate thermal dissipation through the exposed paddle. Verify that the input signal biasing falls within the specified common-mode range to avoid the need for external coupling capacitors.
Part Context
This part belongs to the SA58670A series of stereo audio amplifiers. It is designed as a compact solution for battery-powered consumer electronics. The device integrates PWM H-bridges and internal oscillators to minimize external component count while maintaining high audio fidelity and power efficiency standards.
Replacement Considerations
Consult official NXP documentation for confirmed substitute part numbers. Cross-reference pinouts and electrical characteristics carefully when evaluating alternatives.
