Signal Generator Module
AssemblyDual-channel direct-digital synthesizer producing pure tones, warble tones, and narrow-band masking noise with 1 dB attenuation steps over a 120 dB range. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Bill of materials for Signal Generator Module
6 top-level lines as of r7744| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | DDS Tone Synthesizer | audiometer-dds-synthesizer | 2× | 2 | · | part |
| 2 | Precision Step Attenuator | audiometer-attenuator | 2× | 2 | · | part |
| 3 | Masking Noise Generator | audiometer-masking-generator | 1× | 1 | · | part |
| 4 | Transducer Output Amplifier | audiometer-output-amplifier | 2× | 2 | · | part |
| 5 | Bare PCB | pcb-bare | 1× | 1 | · | part |
| 6 | SMD Passive (R/C/L) | smd-passives | 180× | 180 | · | part |