- 非IC关键词
企业档案
- 相关证件：
- 会员类型：普通会员
- 陈小姐
- 电话：0755-26905995
- 手机：13632824528
- 地址：南山区科技园北朗山二路7号富裕顶大厦318
- 传真：0755-26981651
- E-mail：lisa@lhdtek.com
产品信息
FR6391用的方案是4558（麦克风运放）+PT2399(回音IC)+PT2259(调音量）
而目前FR6391把这些功能集成一颗IC,并且提供很小的封装QFN28
这种方案不仅节省PCB,还可以减少3个IC之间的调试，可以避免不必要的噪声。
FP6391是用在麦克风扩音喇叭产品上的一个选择。
DESCRIPTION
The FR6391 is a CMOS IC that has a microphone
peripheral circuit and an echo generation circuit for
karaoke use, on a single chip.
FEATURES
• High-performance digital echo circuit using 44-Kbit
RAM
• A mic amplifier with an ALC makes it possible to
handle overload input, and the ALC operating
voltage can be externally set to the desired value.
• Built-in mic volume, echo volume, and feedback
volume
• Internal micmixing amplifier
• The clock has an internal current control-type
oscillation circuit, and the generation of unnecessary
oscillation can be prevented because the clock does
not affect anything external to the unit.
• Internal Auto Reset circuit that functions when the
power supply is turned on.
• MIC Volume, Echo Volume, and Feedback Volume
are controlled by I2C Bus or DC control.
• 5V single power supply
APPLICATIONS
• Wireless Microphone
• Karaoke System
• Consumer Audio Applications
• Car Entertainment System