Digital Type-C Headphone PCBA Electrical Performance Automated Test System
Changsen Headphone PCBA Test System
Type-C headset PCBA system overview
Since the iPhone7 canceled the traditional 3.5mm headphone jack, mobile phone manufacturers began to cancel the headphone jack one after another, and the combination of a headset/charging interface has become a general trend. The Type-C interface is widely used due to its transmission speed, positive and negative blind insertion, and multi-function. The Type-C earphones and Type-C earphone adapter cables that are used for application are various, and their audio indicators have become the focus of investigation.
The digital Type-C audio automatic test system adopts the high-performance two-channel audio analyzer A2 independently developed by Changsen, and cooperates with the second-developed electrical performance automatic control test software ABTEC-9800S, and related test fixtures to realize the digital Type-C headset Automatic test of electrical performance of PCBA and Type-C to 3.5mm patch cords.
Type-C Headphone PCBA Test Project
Downlink: output level/power
Frequency response
Signal-to-noise ratio
Distortion degree
Separation degree
Channel balance
Uplink: MIC sensitivity
Frequency response
Distortion degree
Signal to noise ratio
Current: Idle current
Work current
Type-C earphone PCBA test principle diagram
Hardware system block diagram
The fixture supports Type-C operating voltages of 3.3V and 5V, which are available for selection.
·Software features
· The test interface is simple and friendly, easy to operate, and flexible scheduling;
Automatically judge PASS/FAIL;
Test parameters can be set by yourself;
With statistical function (hourly yield statistics & batch yield statistics);
Data export function (test data can be imported into customer production system);
Support a variety of data file access (stored according to customer requirements: automatic identification of product SN and storage);
Test C/T about 15s;