Amplifier Design Requirements Discussion

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Project/Module Metadata Template for the 6 Blue Ant PCB Projects

Use this same structure in every separate PCB project or module so they stay consistent, searchable, and reusable.

Core Template

Field	Template
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-XX -`
Short Description	`Blue Ant AMP Architecture Rev2 logical board PCB-XX. This project implements the within the full six-board amplifier system and preserves the Rev2 architectural constraints, rail domains, interface definitions, and partition boundaries.`
Author	`Blue Ant`
Program / Product	`Blue Ant AMP Architecture Rev2`
Revision	`Rev2`
Board ID	`PCB-XX`
Board Name	``
Board Role	``
System Context	`One project in a six-board amplifier architecture with explicit inter-board interfaces.`
Manufacturing Quantity Target	`25-50 units/year`
Reliability Target	`Premium audio - low noise focus`
Domain	`High-end audio amplifier, mixed-signal, multi-rail`
Status	`Architecture baseline`
Owner Notes	`This project is one partition of the Blue Ant AMP Architecture Rev2 system.`

Shared Constraint Template

Copy these into every project/module exactly.

Table

Field	Template
Hard Constraints	`1) No unbalanced signal path after cartridge input; balanced handling preserved after RCA conversion. 2) No electrolytic capacitors in any audio signal path. 3) No switching components within 150 mm of any audio trace on low-level audio boards. 4) Distinct rail domains must remain explicit: +63V, -63V, +15V, -15V, +5V, +3.3V.`
Signal Handling Notes	`Balanced signal handling is preserved after RCA conversion. Inter-board transport uses explicit P/N signal pairs plus shield/reference nets where applicable.`
Partition Strategy	`This board is one logical partition of a six-board system. Interconnects to other boards must be represented with explicit connector interfaces and named nets.`
Interface Policy	`All off-board power, signal, control, and status links must use explicitly named nets and documented connector pin assignments.`
Layout Policy	`Layout must preserve analog isolation, rail-domain separation, and low-noise partitioning consistent with the full system architecture.`

Shared Rail-Domain Template

Put this in all projects so every board uses the same naming language.

Table

Field	Template
Rail Domain Map	`Main power domain: RAIL_MAIN_POS_63V_L, RAIL_MAIN_NEG_63V_L, RAIL_MAIN_POS_63V_R, RAIL_MAIN_NEG_63V_R, RAIL_PGND_L, RAIL_PGND_R. Analog domains: RAIL_A_POS_15V, RAIL_A_NEG_15V, RAIL_B_POS_15V, RAIL_B_NEG_15V, PCB01_TO_PCB02_AGND, PCB02_TO_PCB03_AGND. Control domains: RAIL_CTRL_5V, RAIL_CTRL_3V3, RAIL_DGND, CTRL_AUDIO_MUTE_ISO, CTRL_TRIGGER_IN, CTRL_TRIGGER_OUT, CTRL_IR_RX, CTRL_DISPLAY_LINK.`
Power Requirements	`System rails include +/-63V main power, +/-15V analog power, +5V control power, and +3.3V control logic power. Only the rails relevant to this board shall be implemented locally.`

Shared System Architecture Reference

Use the same wording in all six projects.

Table

Field	Template
System Architecture Summary	`Blue Ant AMP Architecture Rev2 is a six-board amplifier system comprising phono stage, input select and attenuator, balanced driver, left and right amplifier channels, power supply, and isolated control/display. Each board is a standalone partition with explicit inter-board interfaces.`
External Integration Notes	`This board must integrate cleanly into the full Blue Ant AMP system using documented named interfaces, preserving low-noise analog behavior and system rail separation.`

Board-Specific Metadata Values

PCB-01 Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-01 - Phono Stage`
Board Role	`Low-level analog input stage`
Board Function	`MM/MC gain, RIAA equalization, subsonic filtering, and servo control.`
Local Rail Usage	`RAIL_A_POS_15V, RAIL_A_NEG_15V, PCB01_TO_PCB02_AGND`
Primary Interfaces	`Phono input, chassis/shield reference, balanced handoff to PCB-02, mute/status signals.`
Critical Notes	`Highest sensitivity analog section. No switching components within 150 mm of any audio trace. No vias near sensitive equalization network if later implemented.`

PCB-02 Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-02 - Input Select and Attenuator`
Board Role	`Audio routing and level control`
Board Function	`Input selection, RCA immediate conversion to balanced, relay attenuator, and mute logic interface.`
Local Rail Usage	`RAIL_A_POS_15V, RAIL_A_NEG_15V or RAIL_B_POS_15V, RAIL_B_NEG_15V depending on final partition, CTRL_AUDIO_MUTE_ISO`
Primary Interfaces	`Balanced inputs, RCA input, phono-stage input, balanced output to PCB-03, mute/control links.`
Critical Notes	`RCA path must convert to balanced immediately. Preserve balanced transport after conversion.`

PCB-03 Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-03 - Balanced Driver`
Board Role	`Line-level analog distribution`
Board Function	`Balanced buffer/driver stage feeding left and right amplifier channels and pre-output path.`
Local Rail Usage	`RAIL_B_POS_15V, RAIL_B_NEG_15V, PCB02_TO_PCB03_AGND`
Primary Interfaces	`Balanced input from PCB-02, left/right balanced outputs to amplifier boards, balanced pre-output, mute/status links.`
Critical Notes	`Maintain channel symmetry and clean balanced routing intent.`

PCB-04 Left Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-04L - Power Amplifier Left`
Board Role	`High-power output stage`
Board Function	`Left-channel power amplification and speaker output stage.`
Local Rail Usage	`RAIL_MAIN_POS_63V_L, RAIL_MAIN_NEG_63V_L, RAIL_PGND_L`
Primary Interfaces	`Balanced drive input from PCB-03, speaker output, return, enable/fault/clip links.`
Critical Notes	`Preserve separation between high-current paths and small-signal control/status paths.`

PCB-04 Right Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-04R - Power Amplifier Right`
Board Role	`High-power output stage`
Board Function	`Right-channel power amplification and speaker output stage.`
Local Rail Usage	`RAIL_MAIN_POS_63V_R, RAIL_MAIN_NEG_63V_R, RAIL_PGND_R`
Primary Interfaces	`Balanced drive input from PCB-03, speaker output, return, enable/fault/clip links.`
Critical Notes	`Mirror left-channel intent where possible for matched behavior.`

PCB-05 Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-05 - Power Supply`
Board Role	`Power generation and distribution`
Board Function	`Generation and distribution of main rails, analog rails, and control rails.`
Local Rail Usage	`Generates and exports all required rail domains.`
Primary Interfaces	`AC/DC input as applicable, rail outputs to all dependent boards, isolated control links where required.`
Critical Notes	`Power-domain boundaries must remain explicit. Keep noisy power conversion away from low-level audio system partitions.`

PCB-06 Template

Field	Value
Project Title	`Blue Ant AMP Architecture Rev2 - PCB-06 - Control and Display`
Board Role	`Digital/control subsystem`
Board Function	`User interface, display/control processing, mute/control coordination, non-audio logic.`
Local Rail Usage	`RAIL_CTRL_5V, RAIL_CTRL_3V3, RAIL_DGND`
Primary Interfaces	`Display/control links, mute isolation link, trigger I/O, firmware/update interface as applicable.`
Critical Notes	`Must remain electrically and physically isolated from sensitive low-level analog partitions.`

Recommended Extra Properties for Every Project

Field	Template
Upstream Board(s)	``
Downstream Board(s)	``
Connector Partition Notes	``
Key Signal Nets	``
Key Status/Control Nets	``
Safety / Isolation Notes	``
Layout Placeholder Note	`This project represents one physical PCB within the Blue Ant AMP Architecture Rev2 system.`
Verification Intent	`Schematic capture baseline complete before detailed part selection, placement, and routing.`

Minimal Copy-Paste Version

If you want a short version to reuse quickly, use this block in every project:

Table

Field	Value
Program	`Blue Ant AMP Architecture Rev2`
Revision	`Rev2`
Board ID	`PCB-XX`
Board Name	``
Board Role	``
Description	`Standalone partition of the Blue Ant AMP Architecture Rev2 six-board system.`
Power Requirements	`Relevant subset of +/-63V, +/-15V, +5V, +3.3V rail domains.`
Hard Constraints	`Balanced after RCA conversion; no electrolytics in audio signal path; no switching within 150 mm of low-level audio traces; explicit rail-domain separation.`
Signal Handling Notes	`Use explicit named inter-board nets and connector-defined interfaces.`
Manufacturing Quantity Target	`25-50 units/year`
Reliability Target	`Premium audio - low noise focus`
Status	`Architecture baseline`

If you want, I can also turn this into:

a single normalized metadata checklist for manual entry, or
a project-by-project filled version for all six boards, ready to paste individually.

Project-by-project filled version

Single normalized checklist

Add connector metadata

39 days

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Reviews

Documents

Documents are markdown text files which describe project goals, capture details, or even simulation outputs.

Assets

Assets are files uploaded to this project which can be used in various ways.

Project Name

Description

Single-project implementation of the Blue Ant AMP Architecture Rev2 using one shared schematic with six logical board partitions: PCB-01 phono stage, PCB-02 input selector and relay attenuator interface, PCB-03 balanced driver and RCA-to-balanced conversion interface, PCB-04 dual logical power amplifier channels, PCB-05 multi-rail power supply, and PCB-06 isolated control and display. Explicit inter-partition connector interfaces and named nets preserve balanced signal handling after RCA conversion, distinct rail domains (+63V, -63V, +15V, -15V, +5V, +3.3V), and documented hard constraints including low-noise analog isolation and high-voltage domain separation.

Properties

Reliabili…et (MTBF)

Connecto…n Notes

Signal H…ng Notes

System Architecture

Diagram

Hard Constraints

Power R…rements

Domain

Author

Manufact… Target

Layout P…der Note

Rail Domain Map

Pricing & Availability

Distributor	Qty 1
Arrow	$0.34–$0.70
Digi-Key	$0.92
LCSC	$1.97
Mouser	$1.14
TME	$1.73
Verical	$0.50–$1.86

Controls

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