1. When your device connected to the amplifier sound hours can use this circuit, suitable for audio small signal amplification
2. Low distortion, low voltage, low power consumption of high-fidelity preamp headphone amplifier board
3. Built-in negative voltage conversion chip, the actual power supply is ± DC, the amplification is about 8 times
4. The chip is MC33202, rail-to-rail dual op-amp, maximum drive current 80ma
5. Input and output with 3.5 and lotus two kinds of interfaces, according to the need to use one of the two interfaces is to facilitate the adaptation of different occasions
Chip: MC33202
Supply voltage: DC 3-5V (maximum can not exceed 5.5V, built-in negative voltage conversion chip, the actual power supply for ± DC)
Maximum drive current: 80ma
Rail-to-rail dual op-amp
Amplification: about 8 times (18db)
Circuit board size: 8.3*4.8cm
Input and output with 3.5 headphone seat and Lotus two kinds of interface, according to the need to use one of them can be two kinds of interface is to facilitate everyone to adapt to different occasions, can 3.5 headphone seat into 3.5 headphone seat out; Lotus seat into Lotus seat out; 3.5 headphone seat into Lotus seat out; Lotus seat into 3.5 headphone seat out.
Audio circuit to the power supply requirements are relatively high, please use low ripple power supply, power supply is not good easy to produce AC sound, audio connection line to use shielded wire.
1* Module
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1. Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
2. If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 14 days of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
3. Please contact us first if you have any problems/questions/concerns. We will be happy to resolve any issues you may have in a cordial and friendly manner.
4. We appreciate your Postive Feedback, and will do the same in return. DO NOT leave negative feedback without first communication
When you satisfied with our product and services please leave us positive feedback.
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