DUAL DUPLEX FILTER 850
Designed as an 850MHz transmit cleanup filter, the Kaelus DDF0035 is used to attenuate spurious from a wideband CDMA base station and reduce its effects on a nearby 900MHz frequency allocation.
FEATURES
- For use with WCDMA850 node-B with co-located GSM900 systems
- For indoor or outdoor use
- Covers FA01, FA02 and FA03 channels, 86 dB rejection, ceramic technology
- Provides rejection of microwave link frequencies near 850 uplink band
- Internal DC/AISG bypass path
TECHNICAL SPECIFICATIONS |
| DOWNLINK (BTS TX) | |||||||||||||||
| Passband | 875 – 889.6MHz | ||||||||||||||
| Insertion loss | 1.3dB maximum, 0.8dB typical band edge 0.5dB typical at mid-band |
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| Return loss | 18dB minimum | ||||||||||||||
| EVM | (Across 3.84MHz) 8% maximum / 6% typical (CH FA01), 8% maximum / 6% typical (CH FA02), 8% maximum / 2.6% typical (CH FA03), |
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| Group delay variation | (Across 3.84MHz) 250ns maximum / 150ns typical (CH FA01, CF 887.2MHz), 100ns maximum / 70ns typical (CH FA02, CF 882.2MHz), 100ns maximum / 30ns typical (CH FA03, CF 877.4 MHz) Across passband= 700ns maximum / 820ns typical |
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| Absolute group delay | 800ns maximum / 670ns typical | ||||||||||||||
| Maximum input power | 2 x 160W WCDMA carriers (32DCPH) | ||||||||||||||
| UPLINK (BTS RX) | |||||||||||||||
| Passband | 830 – 844.6MHz | ||||||||||||||
| Insertion loss | 1.0dB maximum, 0.85dB typical at band edge 0.5dB typical at mid-band |
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| Return loss | 18dB | ||||||||||||||
| Group delay variation | (Across 3.84 MHz) 50ns maximum / 20ns typical (CH FA03 and FA02), 100ns maximum / 70ns typical (CH FA01) Across passband= 200ns maximum / 100ns typical |
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| Absolute group delay | 500ns maximum / 200ns typical | ||||||||||||||
| ATTENUATION | |||||||||||||||
| 891.6 – 898.3MHz | 86dB minimum | ||||||||||||||
| 847 – 852MHz | 20dB minimum | ||||||||||||||
| ELECTRICAL | |||||||||||||||
| Impedance | 50ohms | ||||||||||||||
| Intermodulation products | <-150dBc with 2 x 43dBm carriers, reflected mode | ||||||||||||||
| DC / AISG | |||||||||||||||
| Passband | DC – 3MHz | ||||||||||||||
| Insertion loss | 1dB maximum | ||||||||||||||
| Return loss | 12dB minimum | ||||||||||||||
| Input voltage range | +/- 33V maximum, 2 Amp | ||||||||||||||
| ENVIRONMENTAL | |||||||||||||||
| For further details of environmental compliance, please contact Kaelus. | |||||||||||||||
| Temperature range | -20ºC to +60ºC | 4ºF to +140ºF | ||||||||||||||
| Altitude | 2000m | 6,560ft maximum | ||||||||||||||
| Lightning protection | Gas arrestor fitted to DC bypass path. M6 earth stud fitted to connector face. | ||||||||||||||
| MECHANICAL | |||||||||||||||
| Dimensions H x D x W | 400 x 380 x 80mm | 15.75 x 14.96 x 3.15in | ||||||||||||||
| Weight | 17kg | 34.48lbs | ||||||||||||||
| Finish | Powder coated, light grey (RAL7035) | ||||||||||||||
| Connectors | DIN 7-16 (F) x 2 | ||||||||||||||
| Mounting | Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles | ||||||||||||||
ORDERING INFORMATION |
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| PART NUMBER | DESCRIPTION | ||||||||||||||
| DDF0035F1V1 | Dual Duplex Filter, 830-844.6/875-889.6, rejection 86dB@891.6MHz, outdoor | ||||||||||||||
| DDF0035F1V2 | Dual Duplex Filter, 830-844.6/875-889.6, rejection 86dB@891.6MHz, outdoor | ||||||||||||||
ELECTRICAL BLOCK DIAGRAM |
MECHANICAL BLOCK DIAGRAM |
