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Multi FREQ meter

1 month ago 33
  • Description
  • Documents
  • BOM
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Description

  1. For L/C meassure by LM311 and oscillation circuit.
  2. For C meassure by 556N freq to C - range 1-1000 pF
  3. For C meassure by 556N freq to C - range 1-1000 nF

_multi freq meter V_01.jpg

multi freq meter V_01 cover.jpg

multi freq meter V_01.jpg

Documents

Multi FREQ meter PCB

Sheet_1

BOM

ID Name Designator Footprint Quantity
1 100nF C5,C4,C3 1206 3
2 LM7805CT U14 TO-220_HORIZONTAL 1
3 10u C9 CASE-A_3216 1
4 100u C2 CAP 1
5 1000u C1 CAP-D13.0XF5.0 1
6 16x2 LCD (HD44780) U4 LCD1602 1
7 74HC14EE U12 DIP14 1
8 10k PR3,PR2 HELITRIM 329Y 2
9 100uH L2 AXIAL-0.4 1
10 10uH L1 AXIAL-0.4 1
11 20MHz X1 HC-49S 1
12 100n C14,C27,C26,C25,C6 1206 5
13 220n C28 1206 1
14 10n C13,C12 1206 2
15 470nF C10 RAD-0.1 1
16 1nF C11 RAD-0.1 1
17 22p C8,C7 1206 2
18 POWERSUPPLY_DC21MMX G$1 POWERSUPPLY_DC-21MM 1
19 2W10 D1 BRIDGE-WOB 1
20 ISP P1 HDR-IDC-2.54-2X3P 1
21 BC547 Q2,Q1 TO-92_MOLDED_NARROW 2
22 500 R17 1206 1
23 10K R12,R11 1206 2
24 2k2 R10 1206 1
25 1k R9,R7,R13 1206 3
26 100 R8 1206 1
27 1M R6,R1 1206 2
28 10k R5 1206 1
29 100k R4,R3,R2 1206 3
30 SWITCH-MOMENTARYPTH S2,S1 TACTILE-PTH 2
31 NE556N U2 DIP-14 1
32 Header-Male-2.54_1x2 H5_FREQ,H4-1UF,H3-LC,H2-1NF,H1-L_GND HDR-2X1/2.54 5
33 Listwa ARK2 U13,U6,U5 LISTWA ARK2 3
34 FREQ U10 LISTWA ARK2 1
35 Cx_1uF U9 LISTWA ARK2 1
36 Cx_1nF U8 LISTWA ARK2 1
37 MEGA8-P U3 DIP28-300 1
38 LM311N U7 DIP8 1
39 74HC74 U11,U1 DIP14 2

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