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1.Easy to use and quick to get started
2.The process supports design scales of 300 devices or 1000 pads
3.Supports simple circuit simulation
4.For students, teachers, creators
1.Brand new interactions and interfaces
2.Smooth support for design sizes of over 5,000 devices or 10,000 pads
3.More rigorous design constraints, more standardized processes
4.For enterprises, more professional users
STD TWS(True Wireless Stereo Earphone) playback characteristics Tester
Mode:
This is to measure the playback frequency characteristics of TWS earphones.
It is configured as a left-right pair, so it can also be used for binaural recording.
The constants are determined so that the frequency characteristics of the circuit are as flat as possible,
and the microphone is designed to use SPL (Hong Kong) Limited's XCM6035-2022-354PR, which has a diameter of 6 mm and good frequency characteristics that can be inserted into TWS earpieces.
ID | Name | Designator | Footprint | Quantity | Supplier | |
---|---|---|---|---|---|---|
1 | 100nF | C1,C4 | C0603 | 2 | LCSC | C14663 |
2 | 10uF | C2,C5,C13,C23 | C0603 | 4 | LCSC | C19702 |
3 | 1uF | C3 | C0603 | 1 | LCSC | C15849 |
4 | DNP | C10,C11,C20,C21 | C0603 | 4 | LCSC | C14663 |
5 | 220nF | C12,C22 | C0603 | 2 | LCSC | C1882480 |
6 | 100pF | C14,C24 | C0603 | 2 | LCSC | C14858 |
7 | 100uF | C15,C25 | C1206 | 2 | LCSC | C2844390 |
8 | KH-PJ-320D-SMT | CN1 | AUDIO-SMD_KH-PJ-320D-SMT | 1 | LCSC | C5123147 |
9 | Blue light 0603 | LED1 | LED0603-RD | 1 | LCSC | C2288 |
10 | HDR-M-2.54_1x2 | MIC_L,MIC_R,OUT_L,OUT_R,VIN1 | HDR-M-2.54_1X2 | 5 | LCSC | C124375 |
11 | 5.1kΩ | R1,R2 | R0603 | 2 | LCSC | C23186 |
12 | 1kΩ | R3,R10,R11,R14,R20,R21,R24 | R0603 | 7 | LCSC | C21190 |
13 | 100kΩ | R12,R13,R22,R23 | R0603 | 4 | LCSC | C25803 |
14 | 15kΩ | R15,R25 | R0603 | 2 | LCSC | C22809 |
15 | 1MΩ | R16,R26 | R0603 | 2 | LCSC | C22935 |
16 | LM358DR2G | U1 | SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL | 1 | LCSC | C7950 |
17 | AMS1117-3.3 | U2 | SOT-223-3_L6.5-W3.4-P2.30-LS7.0-BR | 1 | LCSC | C6186 |
18 | KH-TYPE-C-6P_C2926725 | USB1 | TYPE-C-SMD_TYPE-C-31-M-16 | 1 | LCSC | C2926725 |
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