Overview
The NCS2211MNTXG, produced by onsemi, is a high-performance, low-distortion Class A/B audio amplifier. It is designed to deliver 1 W of output power into an 8 Ω speaker bridge-tied load (BTL) and operates over a wide temperature range of -40°C to +85°C. This amplifier is suitable for single-supply voltage operation, making it ideal for portable applications. It features low distortion performance with a typical THD + N of 0.2% at 1 W output and includes a shutdown/enable feature to extend battery life by reducing the quiescent current to less than 1 μA.
The NCS2211MNTXG is available in a 3 x 3 mm DFN8 package, which offers low thermal resistance and an exposed metal pad for efficient heat conduction to the PCB. This package is pin-compatible with competitive devices and is Pb-free, halogen-free, and RoHS compliant.
Key Specifications
| Parameter | Symbol | Min | Max | Unit | |
|---|---|---|---|---|---|
| Operating Voltage Range | VCC | 2.7 | 5.5 | V | |
| Power Supply Current - Enabled | IS, ON | 20 | mA | ||
| Power Supply Current - Shutdown | IS, OFF | 1.0 | μA | ||
| Output Current | IO | 350 | mA | ||
| Total Harmonic Distortion + Noise | THD+N | 0.2 | % @ 1 W into 8 Ω | ||
| Gain Bandwidth Product | GBW | 12 | MHz | ||
| Phase Margin | 80 | ° | |||
| Thermal Resistance, Junction-to-Air - DFN8 | θJA | 70 | °C/W | ||
| Operating Ambient Temperature | TA | -40 | 85 | °C | |
| Storage Temperature Range | Tstg | -60 | 150 | °C |
Key Features
- Differential Output
- 1.0 W into an 8 Ω Speaker, 1.5 W into a 4 Ω Speaker
- Single Supply Operation: 2.7 V to 5.5 V
- Low Quiescent Current: 20 mA Max, Shutdown Current < 1.0 μA
- Excellent Power Supply Rejection Ratio (PSRR): 75 dB
- Two Package Options: SOIC-8 Package and DFN8 Package
- Pin Compatible with Competitive Devices
- NCV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- Pb-free, Halogen Free/BFR Free and RoHS Compliant
Applications
- Desktop Computers
- Notebook Computers
- PDA’s
- Speaker Phones
- Gaming Consoles
Q & A
- What is the maximum output power of the NCS2211MNTXG?
The NCS2211MNTXG can deliver up to 1 W of output power into an 8 Ω speaker bridge-tied load (BTL) and up to 1.5 W into a 4 Ω speaker.
- What is the operating voltage range of the NCS2211MNTXG?
The operating voltage range is from 2.7 V to 5.5 V.
- What is the typical THD + N of the NCS2211MNTXG at 1 W output?
The typical THD + N is 0.2% at 1 W output into an 8 Ω load.
- How does the shutdown/enable feature work?
The shutdown/enable feature reduces the quiescent current to less than 1 μA when the device is in shutdown mode, extending battery life.
- What are the package options available for the NCS2211MNTXG?
The device is available in both SOIC-8 and DFN8 packages.
- Is the NCS2211MNTXG RoHS compliant?
Yes, the NCS2211MNTXG is Pb-free, halogen-free, and RoHS compliant.
- What is the thermal resistance of the DFN8 package?
The thermal resistance of the DFN8 package is 70°C/W.
- What is the operating ambient temperature range of the NCS2211MNTXG?
The operating ambient temperature range is from -40°C to +85°C.
- What are some typical applications of the NCS2211MNTXG?
Typical applications include desktop computers, notebook computers, PDA’s, speaker phones, and gaming consoles.
- Is the NCS2211MNTXG suitable for automotive applications?
Yes, the NCV prefix version of the NCS2211 is AEC-Q100 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
