TPA6120A fejhallgató-erősítő kártya NE5534 32-600 ohmos hangszórókhoz fejhallgató védelemmel
TPA6120A Headphone Amplifier Board NE5534 For 32-600 Ohm Speakers With Headphone Protection
Feature
1). Using the original TPA6120A and NE5534.
2). The main filter capacitor capacity using 2 x 3300UF, ensure strong support for a steady stream of power.
3). The selection of rings resistance metal resistance, the main circuit employs a precision of ± 1% metal film resistors rings, ensure the machine a good signal to noise ratio.
4). PCB using 1.6mm thick double-sided sheet, 2.0 oz copper thickness, HASL whole process to ensure that the size of the current through the good performance. PCB-class quality.
The entire circuit board trace layout is quite strict and reasonable, the overall PCB traces using a little grounding. In the dead of night almost hear the background noise contained headphones, very quiet.
Use UPC1237 and Hongfa relay output delay for protection
The two red switches corresponding channel gain switch.
Specification
Basic parameters:
Board size: 104MM x 88MM
Operating Voltage: dual AC15V-0-15V
Applicable Headphone Impedance: 32 -600 ohm
Frequency response: 20HZ-20KHZ
Color as shown
Material: ABS
Package Contents:1 x Headphone Amplifier board
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3cm.
                                                                                                                                                                                                                                                                                                                                                                                                              
1005003838163983./1 - oldstef