RF mixers reduce distortion in 4G basestations




IDTF1150

Dual RF to IF Downconverting Mixer

The F1150 dual channel device is designed to operate with a single 5V supply. It is optimized for operation in a Multi-mode, Multi-carrier BaseStation Receiver for RF bands from 1700 – 2200 MHz with High Side Injection. IF frequencies from 50 to 450 MHz are supported. Nominally, the device offers +40 dBm Output IP3 with 335 mA of ICC. Alternately one can adjust 4 resistor values and a toggle pin to run the device in low current mode with +36 dBm Output IP3 and 235 mA of ICC.

A member of IDT’s Zero-Distortion™ family, this RF to IF mixer reduces distortion for improved SNR while simultaneously reducing power consumption.

Features

  • Dual Path for Diversity Systems
  • 1700 to 2200 MHz freq range
  • Ideal for Multi-Carrier Systems
  • 8.5 dB Gain (200 MHz IF)
  • Ultra linear +38 dBm IP3O (350 MHz IF)
  • Ultra linear +40 dBm IP3O (200 MHz IF)
  • Low NF < 10 dB
  • 200 ohm output impedance
  • Ultra high +13 dBm P1dBI
  • Drop in replacement for existing radiocards
  • 6×6 mm 36 pin package
  • Power Down mode
  • < 200 nsec settling from Power Down
  • Minimizes Synth pulling in Standby Mode
  • Low Current Mode : ICC = 235 mA
  • Standard Mode: ICC = 335 mA
  • Optimized for High Side Injection

RF mixers reduce distortion in 4G basestations, says IDT




Integrated Device Technology has expanded its analogue wireless infrastructure product line with two low-distortion RF to intermediate frequency (IF) mixers for cellular basestations.

The IDT F1150 and F1152 are dual 1700-2200MHz RF to IF mixers with ultra linear (+42 dBm) third-order intercept point (IP3O) for good intermodulation rejection, making them suitable for multi-carrier, multi-mode cellular systems found in 4G wireless basestations.

“The low power consumption and low IM3 distortion of the IDT F1150 and F1152 address a key need for our customers’ 4G basestation solutions, which are being deployed at an intense pace,” said Tom Sparkman, general manager and v-p of the communications division at IDT.

According to the supplier, the devices are designed to improve system third-order intermodulation (IM3) performance and reduce power consumption, resulting in improved quality of service.

“This will result in smaller enclosures with increased reliability in 4G wireless infrastructure applications,” said IDT.

“The mixers reduce power consumption and improve IM3 distortion by over 15 dB for better signal-to-noise ratio (SNR), allowing customers to improve performance with a higher front-end gain,” said the supplier.

 

For more read: RF mixers reduce distortion in 4G basestations




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