PANEL CARDS
About the PANEL CARDS PCB
PANEL CARDS is an open source Microchip SAM PCB design by k16shikano, published on GitHub. It is a 4-layer board measuring 300 × 308 mm, with 234 components from 72 distinct parts.
Its main chip is the ATSAMD21G18A-AU, from the Microchip SAM family. Other key parts include the DIR9001PW, SN74LVC541APWR, TLV803ED29DBZR, SN74LVC1G08DBVR and OPA1656IDR. By type, the board carries 123 resistors, 71 capacitors, 19 ICs, 14 connectors, 2 diodes and 2 inductors.
From the project
16ビットR-2RラダーによるDAコンバーターの設計
- TOSリンク（S/PDIF）からの44.1kHz入力 - ノンオーバーサンプリング - 左右2チャンネル - カードケージ構成（同一回路を1枚にまとめた SINGLEBOARD` あり）
DACCHANNEL と DACCHANNELAXIAL は同一の電気設計**で、S3 / S5 のどちらにも挿さります。 ラダー抵抗の実装方法だけが違います。
SINGLEBOARD もカードケージと同一の電気設計です。JBP とバックプレーンは無く、 R チャネルは 8xxx 参照（U8001 など）。±VREF はチャネルごとにローカル生成のままです。 信号層は F.Cu / In2.Cu / In3.Cu / B.Cu、In1.Cu と In4.Cu が GND ベタ（ラダー下は抜き）。 JRAW ヘッダ（J401 / J402` およびチャネル側）は基板上配線のタップとして残しています。
Main components on the PANEL CARDS
PANEL CARDS bill of materials (BOM)
234 components, 72 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | DIR9001PW DIR9001PWR | Frozen_Package_SO__TSSOP-28_4.4x9.7mm_P0.65mm | U101 |
| 1 | SN74LVC541APWR | Frozen_Package_SO__TSSOP-20_4.4x6.5mm_P0.65mm | U102 |
| 1 | TLV803ED29DBZR | Frozen_Package_TO_SOT_SMD__SOT-23 | U103 |
| 1 | ATSAMD21G18A-AU | Frozen_Package_QFP__TQFP-48_7x7mm_P0.5mm | U201 |
| 1 | SN74LVC1G08DBVR | Frozen_Package_TO_SOT_SMD__SOT-23-5 | U202 |
| 1 | OPA1656IDR | Frozen_Package_SO__SOIC-8_3.9x4.9mm_P1.27mm | U401 |
| 1 | TLV709A01DBVR | Frozen_Package_TO_SOT_SMD__SOT-23-5 | U402 |
| 1 | REF5025IDR | Frozen_Package_SO__SOIC-8_3.9x4.9mm_P1.27mm | U601 |
| 1 | OPA192IDR | Frozen_Package_SO__SOIC-8_3.9x4.9mm_P1.27mm | U602 |
| 2 | TPS7A3901DSCR | TI_DSC0010J_WSON-10_3x3mm_P0.5mm_EP | U701, U702 |
| 1 | TPS7A2033PDBVR | Frozen_Package_TO_SOT_SMD__SOT-23-5 | U703 |
| 2 | SN74LVC595APWR | Frozen_Package_SO__TSSOP-16_4.4x5mm_P0.65mm | U3001, U3002 |
| 4 | TMUX1134PWR | Frozen_Package_SO__TSSOP-20_4.4x6.5mm_P0.65mm | U3003, U3004, U3005, U3006 |
| 1 | OPA2192IDR | Frozen_Package_SO__SOIC-8_3.9x4.9mm_P1.27mm | U3007 |
| 1 | MMBT3904LT1G | Frozen_Package_TO_SOT_SMD__SOT-23 | Q401 |
| 1 | FCR684205R | Cliff_FCR684205R_ORJ5 | J101 |
| 6 | JBP_2x18_AB | TSW-118-08-S-D-RA_JBP_AB | J104, J201, J405, J601, J702, J3002 |
| 1 | SWD_1x5 | Frozen_Connector_PinHeader_2.54mm__PinHeader_1x05_P2.54mm_Vertical | J202 |
| 3 | JRAW_1x3 | JST_PH_S3B-PH-K-S_1x03_P2.00mm_Horizontal | J401, J402, J3001 |
| 1 | RCJ-043 | SameSky_RCJ-043 | J403 |
Show 52 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RCJ-042 | SameSky_RCJ-042 | J404 |
| 1 | POWER_IN_1x4 | Phoenix_MSTB_2.5_4_G_5.08 | J701 |
| 1 | ATQ207 / TQ2-9V | Panasonic_TQ2_THT | K401 |
| 1 | 200R precision trimmer | Frozen_Potentiometer_THT__Potentiometer_Bourns_3296W_Vertical | RV3001 |
| 1 | 1N4148WS | Frozen_Diode_SMD__D_SOD-323F | D401 |
| 1 | BAT54WS | Frozen_Diode_SMD__D_SOD-323F | D402 |
| 1 | ferrite bead | Frozen_Inductor_SMD__L_0805_2012Metric_Pad1.15x1.40mm_HandSolder | FB3001 |
| 1 | 47uH | Frozen_Inductor_SMD__L_1210_3225Metric_Pad1.42x2.65mm_HandSolder | L101 |
| 3 | 100NF 100nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C101, C108, C109 |
| 25 | 100nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C102, C103, C202, C203, C206, C207, C401, C402 +17 |
| 10 | 10uF | Frozen_Capacitor_SMD__C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C104, C105, C701, C702, C703, C704, C711, C712 +2 |
| 1 | 68nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C106 |
| 1 | 4.7nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C107 |
| 1 | 30pF C0G 5% 50V | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C110 |
| 1 | 10UF 100nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C201 |
| 6 | 1uF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C204, C205, C601, C3017, C3018, C3051 |
| 4 | 4.7uF | Frozen_Capacitor_SMD__C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C403, C404, C3001, C3013 |
| 2 | 4.7uF 35V | Frozen_Capacitor_SMD__C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C405, C407 |
| 2 | C0G DNP | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C408, C409 |
| 1 | 10uF X7R >=10V | Frozen_Capacitor_SMD__C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C603 |
| 1 | TDK B32529C0105J000 1.0uF 63V +/-5% | WIMA_MKP2_1uF_63V_P5mm | C607 |
| 5 | 10nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C706, C707, C715, C716, C717 |
| 2 | 2.2uF X7R | Frozen_Capacitor_SMD__C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C721, C722 |
| 3 | 100nF | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder_NO_SILK | C3005, C3011, C3015 |
| 1 | 4.7uF | Frozen_Capacitor_SMD__C_1206_3216Metric_Pad1.42x1.75mm_HandSolder_NO_SILK | C3014 |
| 2 | 1uF DNP | Frozen_Capacitor_SMD__C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3019, C3020 |
| 1 | 0R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R101 |
| 1 | 680 680R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R102 |
| 3 | 100 100R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R103, R104, R105 |
| 3 | 100R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R106, R107, R3050 |
| 3 | 10K 10k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R108, R214, R216 |
| 3 | 10K 150R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R211, R212, R213 |
| 2 | 10K 100k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R215, R218 |
| 1 | 10K 100R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R217 |
| 2 | 47R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R401, R402 |
| 22 | 100k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R403, R404, R408, R409, R3002, R3003, R3030, R3031 +14 |
| 1 | 2.2k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R405 |
| 2 | 10k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R406, R3001 |
| 1 | 649k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R407 |
| 1 | 1.0R 1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R601 |
| 1 | 90.9k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R701 |
| 5 | 10.0k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R702, R704, R712, R714, R3060 |
| 1 | 100k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R703 |
| 1 | 11.8k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R711 |
| 1 | 21.8k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R713 |
| 16 | 150R | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3010, R3011, R3012, R3013, R3014, R3015, R3016, R3017 +8 |
| 1 | 9.88k 0.1% | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_NO_SILK | R3061 |
| 2 | 10R DNP | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_NO_SILK | R3062, R3063 |
| 5 | 33.0k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_LADDER_VERTICAL | R3101, R3109, R3110, R3111, R3113 |
| 35 | 33.0k | R_Axial_Vertical_P1.90mm_D0.80mm_QuarterWatt | R3102, R3103, R3104, R3105, R3106, R3107, R3108, R3112 +27 |
| 1 | 33.0k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder_LADDER_VERTICAL_NO_SILK | R3115 |
| 8 | 33.0k | Frozen_Resistor_SMD__R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3121, R3123, R3125, R3126, R3131, R3133, R3142, R3145 |
PANEL CARDS design files
The KiCad project lives in the k16shikano/r2r-dac repository on GitHub; these links point at the commit this page was built from.
PANEL CARDS: common questions
What microcontroller does the PANEL CARDS use?
The PANEL CARDS is built around the ATSAMD21G18A-AU, from the Microchip SAM family.
How big is the PANEL CARDS PCB?
The PANEL CARDS measures 300 × 308 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the PANEL CARDS?
234 components, from 72 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the PANEL CARDS design files?
From the k16shikano/r2r-dac repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the PANEL CARDS design in my own project?
The repository has no license, so all rights stay with k16shikano. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the PANEL CARDS without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug Microchip SAM firmware against it before you order a PCB.
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