DDC864 Digital Down Converter

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Frequency Range:

54 - 864 MHz,
off-air channels 2-69,
CATV channels 2-135.
Operating Considerations:
1. When the DDC864 is used with the DUC550 or DUC860 the RF input channel should not be the same as the output channel. All other channel combinations are available. For "on channel" conversion, the DUC864 must be utilized.
2.The standard version of the DDC864 is optimized for use with ATSC 8VSB modulation in a 6 MHz wide channel assignment. The passband is designed for optimized operation with 8VSB signals in an adjacent channel environment. Special order versions optimized for QAM modulation or 8 MHz channel bandwidth are available.

Input Level Range:

- 30 dBmV to +30 dBmV.

Input Impedance:

75 Ohms, return loss of 8 db.

Noise Figure:

10 dB typical.

Image Rejection:

55 dB.

IF Frequency:

44 MHz.

Level:

+30 dBmV, ±1 dB.

Impedance:

75 Ohms.

Frequency Stability:

±5 PPM.

IF Bandwidth:

6 MHz, SAW filtered.

Amplitude Flatness Over 6 MHz Channel:

±3 dB over center 5 MHz.

C/N:

50 dB with +10 dBmV input level.

SSB Phase Noise:

-95 dBc @ 10 KHz Offset.

MER with 8VSB:

>35 dB minimum (equalized).

DC Power Input:

+12 V ±5% at 275 mA.
+5 V ±5% at 275 mA.

Operating Temperature:

0°C to +50°C, ambient.

Size:

1" W x 3.5" H x 9.25" D
(2.5 cm W x 8.9 cm H x 23.5 cm D)

Weight:

14.5 oz. (0.41 Kg.).