AD82120B
AD82120B is Mono Digital Audio Amplifier With 46 bands EQ and DRC Functions manufactured by Elite Semiconductor Microelectronics Technology.
Features
- 16/18/20/24-bits input with I2S, Left-alignment, Right-alignment and TDM data format
- PSNR & DR(A-weighting) Loudspeaker: 108d B (PSNR), 112d B (DR)@24V
- Multiple sampling frequencies (Fs) 8k Hz, 16k Hz, 32k Hz/44.1k Hz/48k Hz and 88.2k Hz/96k Hz
- System clock = 32x, 48x, 64x, 96x, 128x, 192x, 256x,384x, and 512x Fs
- Supply voltage 1.65~3.6V for DVDD 8~26V for PVDD
- Supports 2.0CH/Mono configuration 8W x 2CH into 8Ω @ 1% THD+N at 12V 15W x 2CH into 4Ω @ 1% THD+N at 12V 25W x 2CH into 8Ω @ <1% THD+N at 24V 50W x 1CH into 4Ω @ <1% THD+N at 24V
- Sound processing including： 46 bands parametric speaker EQ Volume control (+24d B~-103d B, 0.125d B/step) Dynamic range control Three Band plus post Dynamic range control Auto Gain Limiter Power Clipping Programmed 3D surround sound Noise gate with hysteresis window DC-blocking high-pass filter Pre-scale/post-scale Post-Boost (+48d B) I2S output with user programmed gain (+24d B~mute) pensate filter DPEQ DTC Auto clock detection
- Anti-pop design
- I2S output with selectable Audio DSP point
- Short circuit and over-temperature protection
- Supports I2C control without clock
- I2C control interface with selectable device address
- Internal PLL
- LV Under-voltage shutdown and HV Under-voltage detection
- Over voltage protection
- Power saving mode
Applications
- TV audio
- Boom-box, CD and DVD receiver, docking system
- Powered speaker
- Wireless audio
Description
AD82120B is a digital audio amplifier capable of driving 25W each to a pair of 8Ω load speaker (BTL) or 50W to a 4Ω load speaker (PBTL) operating at 24V supply, that’s no external heat-sink or fan requirement during music playing.
AD82120B provides advanced audio processing functions, such as volume control, 46 EQ bands, audio mixing, 3D surround sound and Dynamic Range Control (DRC). These are fully programmable via a simple I2C control interface. Robust protection circuits are provided to protect AD82120B from damage due to accidental erroneous operating...
