Overview
The NCP2811BFCCT1G is a dual audio power amplifier designed by onsemi, specifically tailored for portable communication devices such as mobile phones. This component features onsemi's NOCAP™ advanced stereo headphone amplifier architecture, which eliminates the need for large external coupling capacitors, thereby reducing space and cost. The NCP2811BFCCT1G is available in a Flip-Chip 12 package and is lead-free, making it an environmentally friendly option.
The device is capable of delivering 27 mW of continuous average power into a 16 Ω load from a 2.7 V power supply with a Total Harmonic Distortion plus Noise (THD+N) of 1%. It offers high fidelity audio sound and includes features such as pop and click noise suppression, short circuit protection, and thermal shutdown.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operational Power Supply | VP | 2.7 | 5.0 | V | |
| Supply Quiescent Current | IDD | 6.0 | mA | ||
| Shutdown Current | ISD | 1 | μA | ||
| Output Offset Voltage | VOS | ±1 | mV | ||
| High-Level Input Voltage SD Pin | VIH | 1.2 | V | ||
| Low-Level Input Voltage SD Pin | VIL | 0.4 | V | ||
| SD Pin Pull-Down Impedance | RSD | 190 | kΩ | ||
| Turning On Time | TWU | 1 | ms | ||
| Thermal Shutdown Temperature | TSD | 160 | °C | ||
| Operating Ambient Temperature Range | TA | -40 | 85 | °C | |
| Operating Junction Temperature Range | TJ | -40 | 125 | °C |
Key Features
- True Ground Architecture: Eliminates the need for large external coupling capacitors, reducing space and cost.
- High Fidelity Audio: Offers superior -100 dB Power Supply Rejection Ratio (PSRR) and low noise floor for high-quality audio.
- Pop and Click Noise Suppression: Special circuitry to eliminate noise during turn-on and turn-off.
- Short Circuit Protection: Limits current to 300 mA when an output is shorted to ground.
- Thermal Overload Protection: Internal amplifiers switch off at 160°C and switch back on when the temperature drops below 140°C.
- Under Voltage Lockout (UVLO): Amplifiers turn off when the battery voltage drops below 2.3 V, with a 100 mV hysteresis to turn back on.
- Adjustable Gain (Version A): External gain selectable using two resistors; Version B has a fixed gain of -1.5 V/V.
- Low Shutdown Current: Less than 500 nA in shutdown mode.
Applications
The NCP2811BFCCT1G is primarily designed for portable communication devices such as mobile phones, tablets, and other handheld audio equipment. It is also suitable for use in other battery-powered audio devices where high-quality audio output and low power consumption are critical.
Q & A
- What is the maximum power output of the NCP2811BFCCT1G?
The NCP2811BFCCT1G can deliver up to 27 mW of continuous average power into a 16 Ω load from a 2.7 V power supply.
- What is the typical THD+N for the NCP2811BFCCT1G?
The typical THD+N is 1% at 27 mW output power.
- What is the PSRR of the NCP2811BFCCT1G?
The PSRR is superior to -100 dB.
- How does the NOCAP™ architecture benefit the design?
The NOCAP™ architecture eliminates the need for large external coupling capacitors, reducing space and cost.
- What protection features does the NCP2811BFCCT1G include?
The device includes short circuit protection, thermal overload protection, and under voltage lockout.
- How does the pop and click noise suppression work?
The device includes special circuitry to eliminate pop and click noise during turn-on and turn-off.
- What is the operating temperature range of the NCP2811BFCCT1G?
The operating ambient temperature range is -40°C to 85°C, and the operating junction temperature range is -40°C to 125°C.
- What is the shutdown current of the NCP2811BFCCT1G?
The shutdown current is less than 500 nA.
- How is the gain set for the NCP2811BFCCT1G?
For Version A, the gain is set using two external resistors. Version B has a fixed gain of -1.5 V/V.
- What package options are available for the NCP2811BFCCT1G?
The NCP2811BFCCT1G is available in a Flip-Chip 12 package.
