带EQ数字输入 D类
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带EQ数字输入 D类
AD82584F-LG48NRY
AD82584F is a digital audio amplifier capable of driving 25W (BTL) each to a pair of 8Ω load speaker and 50W (PBTL) to a 4Ω load speaker operating at 24V supply without external heat-sink or fan requirement with play music. AD82584F provides advanced audio processing functions, such as volume control, 30 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 AD82584F from damage due to accidental erroneous operating condition. The full digital circuit design of AD82584F is more tolerant to noise and PVT (Process, Voltage, and Temperature) variation than the analog class-AB or class-D audio amplifier counterpart implemented by analog circuit design. AD82584F is pop free during instantaneous power on/off or mute/shut down switching because of its robust built-in anti-pop circuit.
Features
16/18/20/24-bits input with I2 S, Left-alignment and Right-alignment data format
PSNR & DR(A-weighting) Loudspeaker: 108dB (PSNR), 108dB (DR)@24V
Multiple sampling frequencies (Fs) 8kHz and 32kHz / 44.1kHz / 48kHz and 64kHz / 88.2kHz / 96kHz and 128kHz / 176.4kHz / 192kHz
System clock = 64x, 128x, 192x, 256x, 384x, 512x, 576x, 768x, 1024x Fs
MCLK system:
256x~4096x Fs for 8kHz
64x~1024x Fs for 32kHz / 44.1kHz / 48kHz
64x~512x Fs for 64kHz / 88.2kHz / 96kHz
64x~256x Fs for 128kHz / 176.4kHz / 192kHz
BCLK system:
64xFs for 32kHz / 44.1kHz / 48kHz
64xFs for 64kHz / 88.2kHz / 96kHz
64xFs for 128kHz / 176.4kHz / 192kHz
Supply voltage 3.3V for digital circuit 4.5V~26V for loudspeaker driver
Supports 2.0CH/Mono configuration
Loudspeaker output power@12V for stereo
7W x 2CH into 8Ω <1% THD+N
10W x 2CH into 4Ω <1% THD+N
Loudspeaker output power@18V for stereo
15W x 2CH into 8Ω <1% THD+N
Loudspeaker output power@24V for stereo
25W x 2CH into 8Ω <1% THD+N
Sound processing including：
30 bands parametric speaker EQ
Volume control (+24dB~-103dB, 0.125dB/step)
Dynamic range control
Three Band plus post Dynamic range control
Power Clipping
Programmed 3D surround sound
Channel mixing
Noise gate with hysteresis window
Bass/Treble tone control
DC-blocking high-pass filter
Pre-scale/post-scale
Anti-pop design
Level meter and power meter
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
Support hardware and software reset
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
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