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C24 CDBC455C24 SMD 455khz Ceramic Discriminator
| NO. | Item | Specification |
| 4 – 1 | Modulation Frequency | 455±1.0KHz |
| 4 – 2 | Demodulated Bandwidth(3dB) | ±4.0KHz min (from 455 kHz) |
| 4 – 3 | Demodulated Output | 100±40mV. (at 450kHz) |
| 4 – 4 | Demodulated Distortion Factor2 | .0%Max. |
| 4 – 5 | Withstand Voltage | D.C. 50V for 1 minute |
|
Input signal condition | Input level | 80dBμ |
| Frequency Deviation | ±4.0 kHz | |
| Modulation Frequency | 1.0 kHz | |
| Demodulated 3dB Bandwidth | Input the above signal and sweep the carrier around 450 kHz, and find Out the maximum audio output frequency. Then sweep the carrier frequency again and find two frequencies, which are observed –3dB attenuation points from the maximum point. Higher frequency point is called (f1) and lower called (f2). (F1-450KHz) is defined as upper 3dB bandwidth and (450KHz-f2) defined as lower 3dB bandwidth. | |
| Demodulate Output | Demodulated output shall be measured when carrier frequency is adjusted to 450KHz. | |
| Demodulated Distortion Factor
| Carrier frequency is adjusted to 450KHz.And distortion shall be measured with 1 kHz modulation frequency. |
