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NCP2824
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NCP2824

Class D Audio Power Amplifier With Auto Gain Control (AGC)

Manufacturer :
ON Semiconductor, LLC
Product Categories :
Multimedia , Audio , Amplifiers , Power Amplifiers
Datasheet:
NCP2824 PDF
RoHs Status:
Lead free / RoHS Compliant
In-stock:
3082

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NCP2824 Product Details

Class D Audio Power Amplifier With Auto Gain Control (AGC) The NCP2824 is a Filterless Class D amplifier capable of delivering up to 2.4 W to a 4 ? load with a 5 V supply voltage. With the same battery voltage, it can deliver 1.2 W to an 8 ? load with less than 1% THD+N. The non-clipping function automatically adjusts the output voltage in order to control the distortion when an excessive input is applied to the amplifier. This adjustment is done thanks to an Automatic Gain Control circuitry (AGC) built into the chip. A simple Single wire interface allows to the non Clipping function to be enabled and disabled. It also allows the maximum distortion level in the output to be configured. A programmable power limit function is also embedded in order to protect speakers from damage caused by an excessive sound level.

NCP2824 Non-Clip and Power Limit Mono Class D Amplifier with AGC
Description

The is a Filterless Class D amplifier capable of delivering 4 W load with 5 V supply voltage. With the same battery voltage, it can deliver 8 W load with less than 1% THD+N. The non-clipping function automatically adjusts the output voltage in order to control the distortion when an excessive input is applied to the amplifier. This adjustment is done thanks to an Automatic Gain Control circuitry (AGC) built into the chip. A simple Single wire interface allows to the non Clipping function to be enabled and disabled. It also allows the maximum distortion level in the output to be configured. A programmable power limit function is also embedded in order to protect speakers from damage caused by an excessive sound level.

Features
B2 C2 (Top View) A1 = INP A2 = VDD A3 = OUTP B1 = AGND B3 = PGND C1 = INM C2 = CNTL C3 = OUTM B3 C3

Non Clipping Function with Automatic Gain Control Circuitry Programmable Power Limit Function Single Wire Interface. No Need for Additional Components Max THD+N Configurable by Swire Interface Only One Capacitor Required Fully Differential Architecture: Better RF Immunity No Need for Input Capacitors in Fully Differential Configuration High Efficiency: to 90% Low Quiescent Current: 2.2 mA Typ Large Output Power Capability High PSRR: -80 dB Fully Differential Capability: RF Immunity Thermal and Auto Recovery Short-Circuit Protection CMRR (-80 dB) Eliminates Two Input Coupling Capacitors Pb-Free and Halide-Free Device

Typical Applications
= Specific Device Code = Assembly Location = Year = Work Week = Pb-Free Package

Audio Amplifier for: Cellular Phones Digital Cameras Personal Digital Assistant and Portable Media Player GPS

For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.

Pin C2 B3 Pin Name INP INN PVDD NC OUTP OUTN CNTL PGND Type Input POWER - Output Input POWER Positive Input Negative Input Power Supply: This pin is the power supply of the device. 4.7 mF ceramic capacitor or larger must bypass this input to the ground. This capacitor should be placed as close a possible to this input. Non-connected: reserved for production. Must be kept floating in the final application Positive output: Special care must be observed at layout level. See the Layout consideration section Negative output: Special care must be observed at layout level. See the Layout consideration section Control: This pin is dedicated to the control of the chip via the Single wire protocol Power Ground: This pin is the power ground and carries the high switching current. A high quality ground must be provided to avoid any noise spikes/uncontrolled operation. Care must be observed to avoid high-density current flow in a limited PCB copper track. Analog Ground: This pin is the analog ground of the device and must be connected to GND plane. Description

Rating AVDD, PVDD Pins: Power Supply Voltage (Note 2) INP/N Pins: Input (Note 2) Digital Input/Output: EN Pin: Input Voltage Input Current Human Body Model (HBM) ESD Rating are (Note 3) Machine Model (MM) ESD Rating are (Note 3) WCSP 1.5 mm package (Notes 6 and 7) Thermal Resistance Junction to Case Operating Ambient Temperature Range Operating Junction Temperature Range Maximum Junction Temperature (Note 6) Storage Temperature Range Moisture Sensitivity (Note 5) Symbol VDD VINP/N VDG IDG ESD HBM ESD MM RqJC TA TJ TJMAX TSTG MSL Value -0.3 to +VDD -0.3 to VDD to +150 Level 1 �C Unit mA V �C/W

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. 1. Maximum electrical ratings are defined as those values beyond which damage to the device may occur 25�C. 2. According to JEDEC standard JESD22-A108B. 3. This device series contains ESD protection and passes the following tests: Human Body Model (HBM) �2.0 kV per JEDEC standard: JESD22-A114 for all pins. Machine Model (MM) �200 V per JEDEC standard: JESD22-A115 for all pins. 4. Latch up Current Maximum Rating: �100 mA per JEDEC standard: JESD78 class II. 5. Moisture Sensitivity Level (MSL): 1 per IPC/JEDEC standard: J-STD-020A. 6. The thermal shutdown set to 150�C (typical) avoids irreversible damage on the device due to power dissipation. 7. The RqCA is dependent on the PCB heat dissipation. The maximum power dissipation (PD) is dependent on the min input voltage, the max output current and external components selected.


Technical Parameters

Manufacturer ON RoHs Status Lead free / RoHS Compliant
Packing Tape & Reel (TR)/Cut Tape (CT)/Tray/Tube Package/Case

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