# Broad Gray Holodeck ## Description STM32F407 PCM1795 DAC Interconnect ## Project Details - **Owner:** valentin-manol - **Created:** 6/14/2026 - **Last Updated:** 6/14/2026 - **Visibility:** Public ## Key Components ### J1 — [Connector 01x08 0.100](https://www.flux.ai/vasy_skral/connector-01x08-0100~q3l.md) - Role: Signal Generation - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: Header for LRCK, DATA, BCK, SCK/MCLK, SPI/control, 3.3V reference, and ground. - Part Type: Connector **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### J3 — [RCJ-041](https://www.flux.ai/adrian95/rcj-041~n1m.md) - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.cuidevices.com/product/resource/rcj-04x.pdf - Role Details: Left single-ended line output from U4 differential stage. - Manufacturer Name: CUI Devices - Manufacturer Part Number: RCJ-041 - Role: Coupling **Pins:** - 1 [pin 1] - 2 [pin 2] ### J4 — [RCJ-041](https://www.flux.ai/adrian95/rcj-041~n1m.md) - Role Details: Right single-ended line output from U4 differential stage. - Manufacturer Part Number: RCJ-041 - Datasheet URL: https://www.cuidevices.com/product/resource/rcj-04x.pdf - Role: Coupling - Manufacturer Name: CUI Devices - Part Type: Connector - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - 1 [pin 1] - 2 [pin 2] ### J5 — [Connector 01x08 0.100](https://www.flux.ai/vasy_skral/connector-01x08-0100~q3l.md) - Part Type: Connector - Role: Power Conversion - License: https://creativecommons.org/licenses/by/4.0/ - Role Details: 8-pin power header: raw 3.3V-reg input, raw 5V-reg input, +12V, -12V, GND, AGND/chassis reference. **Pins:** - Pin_1 [pin 1] - Pin_2 [pin 2] - Pin_3 [pin 3] - Pin_4 [pin 4] - Pin_5 [pin 5] - Pin_6 [pin 6] - Pin_7 [pin 7] - Pin_8 [pin 8] ### U1 — [PCM1795DBR](https://www.flux.ai/vasy_skral/pcm1795dbr~ksx.md) - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.ti.com/lit/ds/symlink/pcm1795.pdf - Role Details: PCM1795 DAC: I2S/SPI input, 5V analog, 3.3V digital, differential current outputs to I/V stages. - Manufacturer Name: Texas Instruments - Role: Signal Generation - Manufacturer Part Number: PCM1795DBR - Part Type: Integrated Circuit **Pins:** - ~MS [pin 10] - ~RST [pin 14] - AGND1 [pin 19] - AGND2 [pin 24] - AGND3L [pin 27] - AGND3R [pin 16] - BCK [pin 6] - DATA [pin 5] - DGND [pin 8] - IOUTL- [pin 26] - IOUTL+ [pin 25] - IOUTR- [pin 18] - IOUTR+ [pin 17] - IREF [pin 20] - LRCK [pin 4] - MC [pin 12] - MDI [pin 11] - MDO [pin 13] - MSEL [pin 3] - SCL [pin 7] - VCC1 [pin 21] - VCC2L [pin 28] - VCC2R [pin 15] - VCOML [pin 22] - VCOMR [pin 23] - VDD [pin 9] - ZEROL [pin 1] - ZEROR [pin 2] ### U2 — [OPA1612AID](https://www.flux.ai/jecstronic/opa1612aid~hp4.md) - Manufacturer Part Number: OPA1612AID - Part Type: Operational Amplifier (OP-AMP) - Manufacturer Name: Texas Instruments - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa1611 - Role Details: U2A/U2B convert PCM1795 IOUTL+/IOUTL- current outputs to voltage. - Role: Amplification **Pins:** - -IN A [pin 2] - -IN B [pin 6] - +IN A [pin 3] - +IN B [pin 5] - OUT A [pin 1] - OUT B [pin 7] - V- [pin 4] - V+ [pin 8] ### U3 — [OPA1612AID](https://www.flux.ai/jecstronic/opa1612aid~hp4.md) - Part Type: Operational Amplifier (OP-AMP) - Role: Amplification - Manufacturer Part Number: OPA1612AID - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa1611 - Manufacturer Name: Texas Instruments - Role Details: U3A/U3B convert PCM1795 IOUTR+/IOUTR- current outputs to voltage. **Pins:** - -IN A [pin 2] - -IN B [pin 6] - +IN A [pin 3] - +IN B [pin 5] - OUT A [pin 1] - OUT B [pin 7] - V- [pin 4] - V+ [pin 8] ### U4 — [OPA1612AID](https://www.flux.ai/jecstronic/opa1612aid~hp4.md) - Manufacturer Part Number: OPA1612AID - Part Type: Operational Amplifier (OP-AMP) - Role: Amplification - Manufacturer Name: Texas Instruments - Role Details: U4A/U4B combine differential I/V voltages and drive line outputs. - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fopa1611 **Pins:** - -IN A [pin 2] - -IN B [pin 6] - +IN A [pin 3] - +IN B [pin 5] - OUT A [pin 1] - OUT B [pin 7] - V- [pin 4] - V+ [pin 8] ### U5 — [LT3042EMSE#PBF](https://www.flux.ai/adrian95/lt3042emsepbf~ow3.md) - Role: Power Conversion - Role Details: LT3042 set to 3.3 V for PCM1795 VDD and clean digital/control supply. - Integrated Circuit Type: Power Management - Manufacturer Name: Analog Devices - Datasheet URL: http://www.linear.com/docs/46159 - Manufacturer Part Number: LT3042EMSE#PBF - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - EN/UV [pin 3] - GND_1 [pin 8] - GND_2 [pin 11] - ILIM [pin 5] - IN_1 [pin 1] - IN_2 [pin 2] - OUT [pin 10] - OUTS [pin 9] - PG [pin 4] - PGFB [pin 6] - SET [pin 7] ### U6 — [LT3042EMSE#PBF](https://www.flux.ai/adrian95/lt3042emsepbf~ow3.md) - Integrated Circuit Type: Power Management - Role: Power Conversion - Role Details: LT3042 set to 5.0 V for PCM1795 VCC1/VCC2L/VCC2R analog rails only. - Manufacturer Part Number: LT3042EMSE#PBF - Datasheet URL: http://www.linear.com/docs/46159 - Manufacturer Name: Analog Devices - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - EN/UV [pin 3] - GND_1 [pin 8] - GND_2 [pin 11] - ILIM [pin 5] - IN_1 [pin 1] - IN_2 [pin 2] - OUT [pin 10] - OUTS [pin 9] - PG [pin 4] - PGFB [pin 6] - SET [pin 7] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/valentin-manol/broad-gray-holodeck~o7](https://www.flux.ai/valentin-manol/broad-gray-holodeck~o7).* --- *Generated from [https://www.flux.ai/valentin-manol/broad-gray-holodeck~o7](https://www.flux.ai/valentin-manol/broad-gray-holodeck~o7)*