|
|
Multi-Channel Brickwall® Filter
- 1 Hz to 100 kHz Frequency Range
- 115 dB/Octave Rolloff
- Pre- and Post-Filter Gain
- 716 System consists of mainframe and up to 16 independent-channel filter cards.
Filter Card Options 001 and 002
Functions - Low pass (001) or high pass (002); rolloffs of 115
dB/octave.
Cutoff Frequency -
- Local Control Range: 1 Hz to 99 kHz
- Remote Control Range: 1 Hz to 100 kHz
Programming and Resolution -
| Multiplier |
Frequency |
Resolution |
| x 1 |
1 to 99 Hz |
1 Hz |
| x 10 |
100 to 990 Hz |
10 Hz |
| x 100 |
1 k to 9.9 kHz |
100 Hz |
| x 1 k |
10 k to 99 kHz |
1 kHz |
Gain -
- Pre-Filter Gain: 0, + 10, + 20, + 30, + 40 dB. One 5-position switch.
- Post-Filter Gain: 0, + 10, + 20 dB. One 3-position switch.
Input Characteristics -
- Impedance: 1 M ohm, 50 pF, nominal
- Full-Scale Signal: 10 V at 0 dB gain
- Absolute Maximum Input: 100 V
Filter Characteristics -
- Passband Ripple: 0.8 dB, p-p max (low pass and high pass), 1.4 dB, p-p max
for high pass with f > 40 kHz
- Stopband Attenuation: 80 dB min for f > 2 fc (low pass), f
< 0.5 fc (high pass).
- Amplifier Rolloff: -3 dB at approx. 400 kHz
Output Characteristics -
- Impedance: 50 ohm, nominal
- Full-Scale Signal: ± 10 V into 5 k ohms
- DC Offset: Adjustable to 0 V ± 50 mV
Phase Match Between Channels -
- Low Pass: ± 3° max DC to 0.8 fc, ± 4° max 0.8 fc to fc.
- High Pass: ± 3° max 1.3 fc, to 130 kHz, ± 4° max fc to 1.3 fc.
Amplitude Match Between Channels -
- Low Pass: ± 0.3 dB max DC to 0.8 fc, ± 0.5 dB max 0.8 fc to fc.
- High Pass: ±0.3 dB max to 1.3 fc to 130 kHz, ± 0.5 dB max fc to 1.3 fc
Model 716-11 Mainframe
Memory - 16 selectable groups; each group has storage for 16
channel settings.
Display - 7-segment displays for Group Number, Channel Number,
pre-Filter Gain, Post-Filter Gain, Cutoff Frequency.
Remote Programming/Sensing - IEEE 488-1978 (GPIB) digital
interface
Input/Output Connectors - Rear BNC's |
