Part Data Review and Validation
1:39
Clarifying project actions.
Inspecting schematic and layout.
Checking if I can make the changes for you.
Analyzing the PCB layout.
Analyzing the schematic.
Looking for "Exact manufacturer part number, manufacturer name, package options, pin count, package drawing identifiers, and concise functional description for MUSES8920D." in MUSES8920_E-259012.pdf
Looking for "Complete pin table for the MUSES8920D package including pin numbers, pin names, and pin functions/descriptions." in MUSES8920_E-259012.pdf
Looking for "Key electrical specs for MUSES8920D: supply voltage range, package type, channel count, input type, noise/distortion or audio-performance highlights, and operating temperature if present." in MUSES8920_E-259012.pdf
Looking for "Package/mechanical information and land pattern details for the MUSES8920D package, including whether it is SOP-8/DIP-8 and any dimensions relevant to footprint verification." in MUSES8920_E-259012.pdf
Citing methodology and tools.
- Datasheet URL: already present, so no update was needed
- MPN: matches datasheet
- Manufacturer: matches datasheet
- Pin count: matches datasheet
- Symbol pin names/numbers: match datasheet
- Footprint package intent: mismatch
- Pin descriptions / pin typing metadata: incomplete
Project vs datasheet
| Field | In project | In datasheet | Status |
|---|---|---|---|
| Manufacturer Part Number | MUSES8920D | MUSES8920D | ✅ Match |
| Manufacturer Name | New Japan Radio | New Japan Radio Co., Ltd. | ✅ Match |
| Part Type | Integrated Circuits | High quality audio J-FET input dual operational amplifier | ⚠️ Too generic |
| Designator Prefix | IC | IC/op-amp class part | ✅ Reasonable |
| Datasheet URL | Mouser PDF present | Official datasheet PDF available through Mouser mirror | ✅ Present |
| Description | “Audio Amplifiers J-FET Input Dual Op Amp” | High quality audio J-FET input dual op-amp for audio applications | ✅ Mostly accurate |
| Package | Not present in project properties | DIP8 for MUSES8920D | ❌ Missing / implied mismatch |
Key datasheet specs
| Spec | Value |
|---|---|
| Function | Dual audio operational amplifier |
| Input stage | J-FET input |
| Channels | 2 |
| Package for MUSES8920D | DIP8 |
| Recommended supply range | ±3.5 V to ±17 V |
| Absolute max supply | ±18 V |
| Noise density | 8 nV/√Hz typ @ 1 kHz |
| THD | 0.0004% typ |
| Slew rate | 25 V/µs typ |
| Gain-bandwidth | 11 MHz typ |
| Operating temperature | -40 °C to +125 °C |
Datasheet pin map
| Pin | Datasheet name | Function | Matching project terminal | Status |
|---|---|---|---|---|
| 1 | A OUTPUT | Channel A output | A_OUTPUT | ✅ |
| 2 | A -INPUT | Channel A inverting input | A_-INPUT | ✅ |
| 3 | A +INPUT | Channel A non-inverting input | A_ INPUT | ✅ |
| 4 | V− | Negative supply | V- | ✅ |
| 5 | B +INPUT | Channel B non-inverting input | B_ INPUT | ✅ |
| 6 | B -INPUT | Channel B inverting input | B_-INPUT | ✅ |
| 7 | B OUTPUT | Channel B output | B_OUTPUT | ✅ |
| 8 | V+ | Positive supply | V | ✅ |
- The project has exactly 8 terminals, which matches the datasheet pin count.
- Pin numbers 1-8 are assigned correctly.
- Pin names align with the datasheet naming convention closely enough for a part symbol.
Issues found
| Item | Finding | Severity |
|---|---|---|
| Pin Type | All terminals are set to Unspecified | ⚠️ |
| Pin Description | No per-pin descriptive text is present | ⚠️ |
| Functional metadata | No section/group/orientation metadata visible | Minor |
| Power pin semantics | V and V- are not typed as power pins | ⚠️ |
| Input/output semantics | Inputs/outputs are not typed for ERC usefulness | ⚠️ |
Table
- The project has a footprint with 8 pads, matching the 8-pin device.
- The pad designators correspond to the same terminal names as the symbol.
- The datasheet says MUSES8920D = DIP8.
- The current project footprint appears to be a generic/custom 8-pad footprint and does not expose clear DIP-8 mechanical/package metadata in the project data I can see.
- Because the project does not list Package or Case Code = DIP8, and the visible footprint data does not clearly identify a through-hole DIP body, this should be treated as a package mismatch / unverified footprint.
- If this footprint was intended for SOP-8, that would correspond to MUSES8920E, not MUSES8920D.
- For MUSES8920D, the package property should explicitly indicate DIP8, and the footprint should clearly match that package.
Mismatches and gaps summary
| Area | Finding |
|---|---|
| MPN | No mismatch |
| Manufacturer | No mismatch |
| Pin count | No mismatch |
| Pin numbering | No mismatch |
| Pin naming | No mismatch |
| Description | Acceptable but could be more specific |
| Package property | Missing; should state DIP8 |
| Footprint | Not clearly verified as DIP8 |
| Pin Type metadata | All pins currently Unspecified |
| Pin descriptions | Missing |
| Higher-level symbol metadata | Incomplete |
- Dual audio J-FET input operational amplifier, low-noise high-end audio op-amp, DIP8
Suggested property additions / corrections
| Property | Suggested value |
|---|---|
| Part Type | Op-Amp or Audio Op-Amp |
| Package or Case Code | DIP8 |
| Operating Voltage | 17 |
| Operating Temperature | -40°C to +125°C |
| Implementation Details | J-FET input, dual audio op-amp, low noise 8 nV/√Hz typ, THD 0.0004% typ, slew rate 25 V/µs typ, GBW 11 MHz typ |
- The pinout is correct.
- The part identity is correct.
- The biggest problems are:
- package/footprint not clearly matching the DIP8 datasheet variant
- all pins are untyped
- pin descriptions are missing
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