Tda8954-btl
About the Tda8954-btl PCB
Tda8954-btl is an open source PCB design by phenidone, published on GitHub. It is a 2-layer board measuring 100 × 48 mm, with 84 components from 33 distinct parts.
Other key parts include the TDA8954J, MCP1799 and PC817. By type, the board carries 36 capacitors, 24 resistors, 9 connectors, 4 diodes, 4 inductors and 3 ICs.
It belongs with the audio designs in this gallery.
From the project
PCB for TDA8954J Class-D amplifier
This is a PCB design for a mono amplifier, using a TDA8954J in BTL configuration.
The board requires 41+41V DC. Filtering caps are included, but a bridge rectifier is not as this is expected to be used with a switching supply.
The datasheet claims 420W into 8 ohms at 10% THD, or 330W at 0.5%, with a 41+41V supply.
The load impedance shall not be less than 8 ohms nominal.
Main components on the Tda8954-btl
Tda8954-btl bill of materials (BOM)
84 components, 33 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TDA8954J | DBS23P | U1 |
| 1 | MCP1799 | SOT-23 | U2 |
| 1 | PC817 | DIP-4_W7.62mm_Socket | U3 |
| 2 | BSS84 | SOT-23 | Q1, Q2 |
| 1 | 2N7002 | SOT-23 | Q3 |
| 2 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_MPT-2.54mm_2pol | J1, J6 |
| 6 | Conn_01x01_Male | FASTON250P_5.08mm_male_vertical | J2, J4, J5, J8, J9, J10 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_Phoenix_MKDS1.5-3pol | J7 |
| 1 | Jumper_NO_Small | Pin_Header_Straight_1x02_Pitch2.54mm | JP1 |
| 3 | LED | LED_0805 | D1, D3, D4 |
| 1 | LL4148 | D_MiniMELF | D2 |
| 2 | 22u | Bourns-2200HT-V | L1, L4 |
| 2 | 22u | SRP1265 | L2, L3 |
| 1 | 470n | C_0805 | C1 |
| 1 | 47p | C_0805 | C2 |
| 4 | 220p | C_0805 | C3, C4, C13, C14 |
| 2 | 680n | C_Rect_L18.0mm_W11.0mm_P15.00mm_FKS3_FKP3 | C5, C11 |
| 13 | 100n | C_0805 | C6, C12, C19, C20, C21, C22, C23, C30 +5 |
| 2 | 1u | C_Rect_L7.2mm_W3.5mm_P5.00mm_FKS2_FKP2_MKS2_MKP2 | C7, C10 |
| 2 | 15n | C_1206 | C8, C9 |
Show 13 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1u | C_0805 | C15 |
| 2 | 10u | C_0805 | C16, C35 |
| 4 | 470u | CP_Radial_D13.0mm_P5.00mm | C17, C18, C24, C25 |
| 2 | 22u | CP_Radial_D10.0mm_P5.00mm | C26, C27 |
| 2 | 100n | C_1206 | C28, C29 |
| 8 | 20 | R_0805 | R1, R6, R7, R8, R20, R22, R23, R24 |
| 2 | 22 | R_Axial_DIN0516_L15.5mm_D5.0mm_P5.08mm_Vertical | R2, R5 |
| 1 | 2k7 | R_0805 | R3 |
| 1 | 27k | R_0805 | R4 |
| 2 | 10k | R_0805 | R9, R10 |
| 2 | 6k8 | R_0805 | R11, R17 |
| 4 | 3k9 | R_0805 | R12, R16, R18, R19 |
| 4 | 100 | R_0805 | R13, R14, R15, R21 |
Tda8954-btl design files
The KiCad project lives in the phenidone/tda8954-btl repository on GitHub; these links point at the commit this page was built from.
- Layouttda8954-btl.kicad_pcb
Tda8954-btl: common questions
How big is the Tda8954-btl PCB?
The Tda8954-btl measures 100 × 48 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Tda8954-btl?
84 components, from 33 distinct parts. The full bill of materials is listed on this page.
Where can I download the Tda8954-btl design files?
From the phenidone/tda8954-btl repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Tda8954-btl design in my own project?
The repository has no license, so all rights stay with phenidone. Use it as a reference, and ask the author before reusing the design.
Similar boards
KLOR
GEIGEIGEIST
160.2 × 118.3 mm79 parts2LGPL-3.01.2k
ButtonsLEDs
shanteacontrols
390 × 37 mm82 parts2LApache-2.0956
USB
52 × 12.6 mm6 parts2LApache-2.0956
Pots
390 × 93 mm75 parts2LApache-2.0956
PicoGUS Hand386
polpo
29.2 × 75.2 mm43 parts4LGPL-2.0800
Snark barker
schlae
231.1 × 106.7 mm193 parts2LNo license687