RX998 2.3

Ongoing

STD RX998 2.3

License: GPL 3.0

Mode:

Editors' pick

Update time： 2023-05-29 11:15:45

Creation time： 2020-03-05 21:46:48

Description

Simple SSB receiver Project home page http://www.ur5ffr.com/viewtopic.php?f=8&t=230&start=10

Design Drawing

schematic diagram

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PCB

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BOM

ID	Name	Designator	Footprint	Quantity
1	0.01	C1,C2,C27,C29,C34,C35,C37	0805	7
2	0.1	C3,C4,C5,C13,C14,C17,C18,C20,C21,C23,C24,C25,C30	0805	13
3	33	C6,C8,C9,C11,C12,C15,C16	0805	7
4	10u	C7,C19,C31,C32,C38	0805	5
5	1u	C10,C33,C36	0805	3
6	100u	C22	CAP-D8.0XF3.5	1
7	470u	C26,C28	CAP-D8.0XF3.5	2
8	LL4148	D1,D2,D3,D4	LL-34	4
9	33uH	L1	AXIAL-0.4	1
10	RF In	P1	HDR-2X1/2.54	1
11	VFO	P2	HDR-2X1/2.54	1
12	S-meter	P3	HDR-2X1/2.54	1
13	RF Gain	P4	HDR-2X1/2.54	1
14	AF Out	P5	HDR-2X1/2.54	1
15	12v	P6	HDR-2X1/2.54	1
16	BFO2	P7	HDR-2X1/2.54	1
17	AF Gain	P8	HDR-3X1/2.54	1
18	BC847	Q1,Q4	SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR	2
19	2N3906	Q2	SOT-23(SOT-23-3)	1
20	BSS138	Q3	SOT-23-3	1
21	100	R1,R15,R21,R28	0805	4
22	1k5	R2	0805	1
23	330	R3	0805	1
24	4k7	R4	TRIMMER_3306F	1
25	1k*	R5,R6	0805	2
26	150k	R7,R9	0805	2
27	1M	R8	0805	1
28	270	R10	0805	1
29	10	R11,R16	0805	2
30	10k	R12	0805	1
31	300	R13	0805	1
32	0R	R14	0805	1
33	2k2	R17,R20,R22,R25	0805	4
34	10	R18	1206	1
35	470	R19	0805	1
36	220	R23	0805	1
37	6k8	R24	0805	1
38	68k	R26	0805	1
39	2k7	R27	0805	1
40	78L09	REG1	TO-92-3	1
41	T37_AUTOTRANSFORMER	T1,T2,T3	T37_AUTOTRANSFORMER	3
42	TDA2822	U1	SOP-8_150MIL	1
43	BF998	VT1,VT2,VT3,VT4,VT5,VT6	SOT143B	6
44	XTAL	XTAL1,XTAL2,XTAL3,XTAL4,XTAL5,XTAL6,XTAL7,XTAL8,XTAL9,XTAL10	HC-49U-PTH-W	10