Overview
The ST-IC1 is the ideal choice where an intercom system is to be installed, or where an amplifier is needed to bring a mic level up to a 1 W speaker level with optional muting capability.
The ST-IC1 has one input, one output and two muting control terminals.
The input accepts a dynamic mic, a condenser mic (a phantom supply input terminal is provided to power condenser mics), an 8 ? speaker or a 45 ? speaker. The gain range of the module is sufficient to accommodate this wide variety of source levels.
The output is ground-referenced, and drives more than 1 watt RMS into an 8 ? load. The output circuit can be connected to any load impedance of 4 ? or greater.
Features
- Intercom Electronics
- Intercom with Push-to-Talk
- Mic or Speaker Input
- 8 Ω or 45 Ω Speakers
- Bidirectional Communication Option
Specifications
| Input | >600 ? balanced |
| Frequency Response | 300 Hz to 4 kHz (± 2 dB, filtered for voice band intelligibility) |
| Gain | Off to 70 dB (adjustable) |
| Input level for 1 W RMS output | -60 dBu (8 ? source); -55 dBu (600 ? source) |
| THD+N | < 1% (1 kHz, referred to 1 W @ 50 dB gain) |
| Residual Noise (below 1 W) | < 75 dB (60 dB gain setting, unmuted) |
| Maximum Output Power | 1.5 W RMS (before clipping) |
| Mute Inputs (2) | Trigger on high to low transition, 2 mA, 15 V pullup; Trigger on low to high transition, 0.1 mA |
| Mute Attenuation | > 115 dB (1 kHz) |
| Mute Switching Type | Solid-State, no relay contacts used |
| Mute Release Delay | 15 ms |
| Ambient Operating Environment | 0° C to 40° C |
| Power Requirement | GROUND-REFERENCED, 24 Vdc @ 175 mA |
| Dimensions | Height: 0.7 in. (7.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm) |
| Package Type | Cardboard Box |
| Package Dimensions | 2 x 2 x 4 in. |
| Shipping Weight | 0.185 lbs. |
| WEEE weight | 0.13 lbs. |
| Tariff code | 8518.40.2000 |
