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2 layers300 × 120 mmBlock sch, the printed circuit board in 3D

Audio amplituner with display, bass, middle, treble control. It has:

Size
300 × 120 mm
Copper layers
2
Thickness
1.6 mm
Parts
377
Nets
298
Pads
1,125
Tracks, vias
2,590, 1,574
Pours
971
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
20 Dec 2021
Updated
26 Jan 2025

Overview

Block sch is an open-source printed circuit board by wonzaj, from the wonzaj/Amplituner repository on GitHub. It is a 2-layer board of 300 × 120 mm with 377 parts on 298 nets, routed with 2,590 tracks and 1,574 vias.

It is built around the TDA7719, RDA5807M and LM833D, with the LM3886T, CAT24C256LI and CS43L21-CNZ among its other parts. Its parts include 173 capacitors, 128 resistors, 21 ICs, 20 connectors and 14 diodes. It belongs with the ESP8266 and STM32 boards of this library.

Main components

9

README

README.md

Audio amplituner, prototype

Audio amplituner with display, bass, middle, treble control. It has:

  • 3.2" OLED display with SSD1322 controler with 4bit gray scale. (check displays folder to see possible display states)
  • possibility to wake up to your favourite radio station at specified time.
  • two independent alarms which can work in five diffrent modes (everyday, one time, mon-fri, weekends, exact date)
  • six encoders with buttons used to control audio (volume front, volume back, treble, middle, bass, loudness)
  • four user buttons used to change settings, displays etc.
  • five audio inputs - bluetooth 5.0, 2x jack, radio, microphone
  • radio receiver with displaying RDS information
  • possibility to save two favourite stations and then tune to them by pressing certain button
  • displaying current day of the week, day of the month, year, hour, minunte, second and possibility to change them
  • momentary button used as main power button with led controlled by PWM signal
  • displaying FFT of selected output signal
  • saving user settings in external EEPROM memory
  • using ultra low power stm32l4q5

Soon to be done:

  • wireless communication with ESP8266 to control parametrs via smartphone, browser
  • playing audio files from USB disc using CS43L21 driver

Parts

377
QtyValueFootprintReferences
84RResistor_SMD:R_0805_2012MetricR100, R101, R102, R103, R104, R105, R106, R111, R112, R113, R114, R115, R116, R117, R118, R119 +68
55CCapacitor_SMD:C_0805_2012MetricC106, C107, C108, C109, C110, C111, C112, C113, C114, C115, C116, C117, C118, C119, C120, C121 +39
22100nFCapacitor_SMD:C_1206_3216MetricC59, C64, C65, C71, C74, C86, C105, C153, C154, C155, C156, C157, C158, C170, C171, C173 +6
16RResistor_SMD:R_1206_3216MetricR31, R32, R33, R34, R35, R36, R37, R38, R39, R40, R76, R77, R107, R108, R109, R110
144,7uFCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC23, C24, C29, C30, C55, C56, C57, C58, C72, C75, C159, C162, C163, C172
9100nFCapacitor_SMD:C_0805_2012MetricC70, C76, C77, C78, C79, C92, C98, C139, C140
81000uFCapacitor_THT:CP_Radial_D12.5mm_P5.00mmC13, C14, C25, C26, C47, C48, C49, C50
820kResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR8, R9, R10, R11, R22, R23, R24, R25
8220uFCapacitor_THT:CP_Radial_D10.0mm_P5.00mmC19, C20, C27, C28, C51, C52, C53, C54
84 700uFCapacitor_THT:CP_Radial_D18.0mm_P7.50mmC10, C12, C21, C22, C43, C44, C45, C46
7Conn_02x02_Counter_ClockwiseConnector_PinHeader_1.27mm:PinHeader_2x02_P1.27mm_VerticalJ6, J7, J8, J9, J10, J11, J12
6MountingHoleMountingHole:MountingHole_3mm_Pad_ViaH1, H2, H3, H4, H5, H6
5LM833Damplituner_lib:LMV358U13, U14, U15, U20, U21
4100uFCapacitor_THT:C_Radial_D8.0mm_H11.5mm_P3.50mmC15, C17, C39, C40
410kResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR12, R14, R26, R27
41kResistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_HorizontalR6, R7, R20, R21
41kResistor_SMD:R_1206_3216MetricR4, R5, R18, R19
420kResistor_SMD:R_1206_3216MetricR2, R3, R16, R17
4220nFCapacitor_THT:C_Radial_D8.0mm_H11.5mm_P3.50mmC16, C18, C41, C42
44,7RResistor_THT:R_Axial_DIN0614_L14.3mm_D5.7mm_P15.24mm_HorizontalR13, R15, R28, R29
44,7uFCapacitor_SMD:CP_Elec_6.3x5.2C61, C67, C68, C69
44.7uFCapacitor_SMD:C_1206_3216MetricC3, C4, C31, C32
4470uFCapacitor_SMD:C_1206_3216MetricC7, C8, C35, C36
447pFCapacitor_SMD:C_1206_3216MetricC9, C11, C37, C38
447uF Tanlib-amplituner:CAP_TANT_1206_SMDC84, C85, C93, C94
4680pFCapacitor_SMD:C_1206_3216MetricC5, C6, C33, C34
4AudioJack3Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_HorizontalJ1, J2, J17, J20
4D_ZenerDiode_THT:D_DO-34_SOD68_P7.62mm_HorizontalD5, D6, D7, D8
4LEDLED_SMD:LED_1206_3216MetricD13, D14, D15, D16
4LM3886Package_TO_SOT_THT:TO-220-11_P3.4x5.08mm_StaggerOdd_Lead4.85mm_VerticalU1, U2, U3, U4
3100pFCapacitor_SMD:C_1206_3216MetricC96, C97, C100
3220nFCapacitor_SMD:C_1206_3216MetricC60, C62, C66
3Conn_01x03Connector_PinHeader_1.27mm:PinHeader_1x03_P1.27mm_VerticalJ16, J18, J19
3D_Bridge_+-AADiode_THT:Diode_Bridge_19.0x3.5x10.0mm_P5.0mmD2, D3, D4
3G6K-2Relay_SMD:Relay_DPDT_Omron_G6K-2F-YK2, K3, K4
2100MHzInductor_SMD:L_1206_3216MetricL3, L4
210uFCapacitor_SMD:C_1206_3216MetricC101, C102
22200uFCapacitor_THT:CP_Radial_D18.0mm_P7.50mmC1, C2
22200uFCapacitor_THT:CP_Radial_D12.5mm_P5.00mmC103, C104
2BC817Package_TO_SOT_SMD:SOT-23Q2, Q3
2CCapacitor_SMD:C_1206_3216MetricC141, C142
2Conn_02x03_Counter_ClockwiseConnector_PinHeader_1.27mm:PinHeader_2x03_P1.27mm_VerticalJ13, J14
2FuseFuse:Fuseholder_Cylinder-5x20mm_Schurter_0031_8201_Horizontal_OpenF2, F3
2LInductor_SMD:L_0805_2012MetricL1, L2
2LM78M05_TO252Package_TO_SOT_SMD:TO-252-2U9, U19
1100uF EleCapacitor_SMD:CP_Elec_4x3.9C83
110uFCapacitor_THT:CP_Radial_D6.3mm_P2.50mmC73
110uF EleCapacitor_SMD:CP_Elec_4x3.9C95
1AMM-3742-T-Ramplituner_lib:MIC_AMM-3742-T-RMK1
1AZ1117-3.3lib-amplituner:AZ1117-3.3U10
1CAT24C256amplituner_lib:CAT24C256U17
1CS43L21Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.45x3.45mmU16
1Conn_01x02Connector_PinHeader_1.27mm:PinHeader_1x02_P1.27mm_VerticalJ15
1Conn_01x03Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_VerticalJ4
1Conn_02x02_Counter_ClockwiseConnector_PinSocket_1.27mm:PinSocket_2x02_P1.27mm_VerticalJ5
1CrystalCrystal:Crystal_SMD_HC49-SDY1
1ESP8266-12E_ESP-12ERF_Module:ESP-12EU7
1FuseFuse:Fuse_1206_3216MetricF1
1LM7812_TO220Package_TO_SOT_THT:TO-220-3_VerticalU8
1NRST_BUTTButton_Switch_SMD:SW_SPST_FSMSMSW1
1RDA5807Mlib-amplituner:RDA5807MU11
1STM32L4Q5Package_QFP:LQFP-64_10x10mm_P0.5mmU6
1TDA7719lib-amplituner:TDA7719U5
1TVS 15VDiode_SMD:D_1206_3216MetricD12
1TVS 3,6VDiode_SMD:D_1206_3216MetricD10
1TVS 6VDiode_SMD:D_1206_3216MetricD11
1USBLC6-4SC6Package_TO_SOT_SMD:SOT-23-6U18
1USB_Aamplituner_lib:usb_AJ3
1bluetooth_moduleamplituner_lib:bluetooth_moduleU12

Questions

How big is the Block sch PCB?

It measures 300 × 120 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Block sch use?

377 parts, built around the TDA7719, RDA5807M, LM833D and LM3886T. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Block sch KiCad files?

From the wonzaj/Amplituner repository on GitHub, at the commit this page was made from: the board is Hardware/kicad/block diagram/block-sch/block-sch.kicad_pcb and its schematic Hardware/kicad/block diagram/block-sch/ADC_scheet.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Block sch design in my own project?

Its repository states no licence, so its author keeps all rights: ask wonzaj before reusing the design.

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