Wavetek 852 Dual HI/LO Variable Analog Filter

Wavetek 852 Dual HI/LO Variable Analog Filter , single-ended
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Wavetek 852
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Datasheet

Input Characteristics:

Circuit:  single-ended, diode protected
 

Impedance:  1 M ohm shunted to 50 pF; 75 pF in 20 dB gain.
 

Full-Scale Signal at 0 dB Gain:  ±10 V(7.1 Vrms), DC to 300 kHz, decreasing to ±4 V(2.8 Vrms) at 1 MHz (divide these by 10 at 20 dB gain).
 

Absolute Max Input:  ±100 V
 

Max. DC Component (High Pass):
 
  • ±100 V, 0 dB gain.
  • ±10V, 20 dB gain. 

 

Output Characteristics:


Circuits: 
 
  • Single-ended
  • Short-circuit protected
  • May be DC isolated from power ground by rear panel switch


Impedance: 50 ohms
 

Full-Scale Signal:  ±10 V(7.1 Vrms), DC to 300 kHz, decreasing to ±4 V(2.8 Vrms) at 1 MHz (RL > or + 5 k ohms, ±15 mA max. current

 
Wavetek 852 Dual HI/LO Variable Analog Filter:
  • 0.01 Hz to 111 kHz Range
  • 3 digits Resolution
  • Butterworth and Flat Delay Responses

 

Functions:
  • Low Pass, High Pass, Band Pass, Band Reject, Notch.
  • Frequency Range and Resolution:  Three 11-position switches and one 4-position multiplier
  • Attenuation Rate per Channel

 

Flat Amplitude (Butterworth) Response
Passband Gain:
 
  • Low Pass: 0 dB/ 20 dB, ± 0.5 dB
  • High Pass:  0 dB/ 20 dB, ± 0.5 dB
  • (± 1 dB in x10 k Multiplier position): -3 d\b at approx. 1 MHz


Attenuation at Cutoff: 3 dB
 

Maximum Stopband Attenuation: 
 
  • 80 dB min on x10 K and x1 K ranges for fin <or = 400 kHz.
  • 70 dB min on x100 and x10 ranges for f in <or = 300 kHz.


Phase Match Between Channels (typical):  2° or 2%, whichever is greater.

 

Flat Delay Response
  • Low Pass Delay (typical):  1/fc seconds   
  • Attenuation Cutoff:  Approx. 17 dB