Netcom’s 5557 is a digitally tunable filter covering the frequency range of 4 to 10MHz.The filter has been designed using new commercially available high voltage drivers and a new generation CPLD, which allows for improved performance and reduced cost while at the same time providing increased functionality.  A control interference is provided to accept either parallel data and strobe or serial data, clock and strobe.  The filter incorporates high voltage totem-pole drivers for the PIN diode bias voltage to minimize current draw from the 100 VDC supply.


  • Specifications
  • Performance
  • Mechanical
  • Ordering Information
  • Evaluation
Frequency Range 4 to 10 MHz
Available BW 3%
*Ftune +/- 10% Selectivity (Typical) N/A
*Ftune +/- 15% Selectivity (Typical) N/A
*Ftune +/- 20% Selectivity (Typical) N/A
Insertion Loss (Typical) 4.7 dB
Impedance (Input /Output) 50 Ω
Switching Speed, 90% RF Power 100 µs
Tuning Channels 250
P1dB N/A
Noise Figure N/A
DC Inputs
      +5 Volts (±0.5 Volts) 250 mA
      +100 Volts (-7, +25 Volts) 0.5 mA
Operating Temperature Range -40 to +85°C
Control Interface – Parallel Interface
Dimensions [L x W x H] 2.30 x 1.40 x 0.55 inches

58.42 x 35.56 x 13.97 mm



Ordering Information