ขาย pam 8403 ultra - commact แผ่นบอร์ดโมดูลขยายเสียงดิจิตอล 2x3 w 2 . 5 v to 5v usb ราคาที่ดีที่สุด
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| เรือจาก | ต่างประเทศ |
|---|---|
| Color | PAM8403 with switch PAM8403 Green PAM8403 Red |
รายละเอียดสินค้า
PAM8403 Green
Feature:
Model:PA8403
Power:Low Power
Super size:1.85*2.11 cm
Excellent noise suppression, in the absence of circumstances connected to input audio ear close to the speaker can not hear any noise, two-channel stereo, 5V power supply can output 3W 3W power, can directly drive 4Ω, 8Ω small speakers, the output power large, full of energy, good sound quality. The unique non-LC filter Class-D digital power board can be directly used computer USB power supply. Double panel wiring, wiring properly resolve the ground potential caused by balance and inter-channel crosstalk, ultra-miniature design, can easily be placed in a variety of digital products within a small space, high amplification efficiency. All using the whole plate welding machine, welding quality comparable non-manual soldering iron!
Note:
The left and right channel output of the "negative" and can not be connected together,otherwise it will burn IC,and should be preceded powered speakers connected (load).
Rated working voltage 2.5V ~ 5V, limit operating voltage 5.5V.
Package Include:
1 x PAM8403 Super Mini Digital Amplifier Board 2 * 3W Class D Digital 2.5V To 5V Power Amplifier Board Efficient
Packed Safely in Bubble Bag.
PAM8403 Red
Parameters:
Power supply: direct current (DC) : 3.6V-5.5V
Output power: 3W+ 3W (4 o)
Signal to noise ratio: 90dB
Efficiency: > 90%
Size: 15.5 * 24mm positioning hole size: spacing of 20 mm diameter: 2 mm
Note:
1: power supply is the cathode can't meet the, power supply voltage cannot be more than 5.5 V, the two violation will cause damage of the IC.
2: with high gain buffer, not any component parameter changes on a board, does not conform to the parameters will lead to damage of the IC.
3: please try to input line with shielding line, can play a role of anti-interference, eliminate noise currents.
4: the cmos tube BTL output, around the horn of the cathode can't meet together, namely pick horn line 4 is completely independent, are not allowed to pick up!