Surface-mount diplexer filter for modems

29 August 2001 Telecoms, Datacoms, Wireless, IoT

Pulse offers a line of surface-mount diplexer filters to enhance the quality and performance of broadband interactive cable communications systems by separating the upstream (from the user) and downstream (to the user) signals. The integrated modules will allow manufacturers of cable modems, set-top boxes, Internet appliances etc to save board space, reduce part count and simplify the equipment design when compared to a discrete filter solution.

The CX6002 filter module allows two-way communication between the customer premise equipment (CPE) and the cable network with minimal crossover interference between the downstream and upstream broadcast frequency spectrum. In most bi-directional cable applications, the 54 to 864 MHz frequency range carries the downstream broadcasts and the 5 to 42 MHz range carries the upstream communications. The CX6002 diplexer filter separates the upstream and downstream signals, delivering a low-pass signal (less than 42 MHz) at one port and a high-pass signal (greater than 54 MHz) at the second port.

Pulse says the design provides excellent return loss (>14 dB), crossover isolation (>18 dB) and port-to-port isolation (>30 dB). The diplexer filter needs no tuning, further reducing assembly costs for the customers.

Memec SA, (021) 674 4103

Further reading:

Power amps for portable radio comms systems
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
CML Micro expands its SµRF product portfolio with a pair of high efficiency single- and two-stage power amplifiers that offer outstanding performance for a wide range of dual-cell lithium battery-powered wireless devices.

Read more...

---

RF agile transceiver
Altron Arrow Telecoms, Datacoms, Wireless, IoT
The AD9361 is a high performance, highly integrated RF Agile Transceiver designed for use in 3G and 4G base station applications.

Read more...

---

Choosing a GNSS receiver
RF Design Telecoms, Datacoms, Wireless, IoT
Applications requiring sub-ten-meter positioning accuracy today can choose between single-band or dual-band technology. While this decision might seem as simple as flipping a coin, it is far from that.

Read more...

---

Tri-Teq’s latest range of filters
RFiber Solutions Telecoms, Datacoms, Wireless, IoT
Tri-Teq recently presented its latest filter products, which included passive and co-site mitigation filters (lumped element and suspended substrate technologies) and tunable filters (bandpass and harmonic switched filters).

Read more...

---

Why GNSS positioning precision is enabling the next wave of IoT applications
iCorp Technologies Editor's Choice Telecoms, Datacoms, Wireless, IoT
While high-performance GNSS implementations are achievable with few limitations, most real-world applications must balance power consumption, form factor and accuracy requirements.

Read more...

---

The evolution of 4D imaging radar
Altron Arrow Telecoms, Datacoms, Wireless, IoT
4D imaging radar is redefining automotive sensing with unmatched precision, scalability and resilience and, as global adoption accelerates, this technology is poised to become a cornerstone of autonomous mobility.

Read more...

---

Links Field Networks: The perfect fit for telematics in Africa
Links Field Networks Telecoms, Datacoms, Wireless, IoT
Operating at the intersection of global SIM innovation and local market intelligence, Links Field Networks has emerged as a premier provider of telematics-oriented connectivity across Africa and beyond.

Read more...

---

RF direct conversion receiver
iCorp Technologies Telecoms, Datacoms, Wireless, IoT
The CMX994 series from CML Micro is a family of direct conversion receiver ICs with the ability to dynamically select power against performance modes.

Read more...

---

Bridging the future with RAKWireless WisNode devices
Otto Wireless Solutions Telecoms, Datacoms, Wireless, IoT
The WisNode Bridge series by RAKWireless is designed to convert traditional wired industrial protocols like RS485 and Modbus into LoRa-compatible signals.

Read more...

---

Mission-critical RF transceiver
Vepac Electronics Telecoms, Datacoms, Wireless, IoT
The Iris SQN9506 from Sequans Communications is a wide-band RF transceiver that operates from 220 MHz to 7,125 GHz.

Read more...

---