音频类比数位转换器
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ESMT(晶豪科技)
音频类比数位转换器
AD62557-LG48NAY
AD62557 is a highly integrated USB single chip for Stereo/Mono speaker. Many useful features are programmable with pins or I²C control. When using the power supplied from the USB port (USB 3.0), AD62557 can drive a pair of up to 2.1W into 4ohm speakers due to the built-in, high efficiency and high performance Class-D amplifiers. The device also has an I²S input port and I²S output port. The I²S input port allows other external audio sources to use the Class-D amplifier to share the speakers. The I²S output port allows other high performance audio device (i.e. AD82586/AD82581).
Features
Compliant with USB Specification v1.1, and USB 2.0 full speed
Compliant with USB 3.0 super speed operation
Embedded stereo ADC with Microphone Boost
Embedded Power-On-Reset circuit
Embedded high efficiency, high performance Class-D stereo amplifier
Support I²S input (master and slave mode) and I²S output interface (master mode)
Support sampling frequency 44.1/48KHfor playback and recording
Pin to set recording source from internal ADC or external ADC
Pin to set speaker mode or I2 S output mode
Support Microphone and line-in function switching
Support volume/mute control with external button
LED indicator function for playback, mute and recording mute
Support 3D surround sound
Support Microphone bias
Support Digital microphone interface for recording
Power Clipping function for speaker protection
External EEPROM interface for vendor specific and hardware configuration via I²C
I²S input port allows AD62557 to receive ESMT’s high performance ADC(i.e. AD12250)
I²S output port allows AD62557 to control ESMT’s high performance audio devices (i.e. AD82586/AD82581)
PWM output port to drive PWM Class-D audio device (i.e. AD9258)
Loudspeaker PSNR & DR (A-weighting, I2 S input) 86dB (PSNR), 88dB (DR) with bead filter
Loudspeaker output power with external power
2.1W x2CH into 4Ω@10% THD+N
1.4W x2CH into 8Ω@10% THD+N
Efficiency with bead filter
75% for 8Ω load @ Po = 1.4W x 2CH
70% for 4Ω load @ Po = 2.1W x 2CH
Built-in 5V to 3.3V regulator for internal device operation
Anti-pop design
Over-temperature protection
Under-voltage shutdown
Short-circuit detection
Single 12 MHCrystal Input
3.3V operation I/O
Supports Windows Me/2000/XP/Vista/7/8, Linux and MacOS
Integration circuit quality meet Win7 and Win8 Hardware Logo requirement
48-pin E-LQFP Pb-free package
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
