D51 FREQUENCYDEVICES | Alldatasheet
Document overview
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Technical content
Telephone Message & Circuit Noise Measurement
1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176
e-mail: sales@freqdev.com Web Address: http://www.freqdev.com
Description
The D51 is designed specifically to provide the C- message weighting frequency response specified in Bell System Technical Reference 41009 for tele- phone message circuit noise measurement. The theoretical C-message characteristic simulates the perceived response of the human ear to telephone noise. The D51 filter provides a close, ±1db approximation to the theoretical C-message weighting function from 60 Hz to 5.0 kHz.
Applications
Telephone Message Circuit Noise Measurement Test Equipment 5K50050 -50 -40 -30 -20 -10 FREQUENCY (Hz) ATTENUATION (dB) 100 200 1K 2K Frequency Response Curve Theoretical Frequency Response Frequency Attenuation Tolerance Hz dB ±dB 60 55.7 1 100 42.5 1 200 25.0 1 300 16.5 1 400 11.4 1 500 7.5 1 600 4.7 1 700 2.7 1 800 1.5 1 900 0.6 1 1000 0.0 0.1 1200 0.2 1 1300 0.5 1 1500 1.0 1 1800 1.3 1 2000 1.3 1 2500 1.4 1 2800 1.9 1 3000 2.5 1 3300 5.2 1 3500 7.6 1 4000 14.5 1 4500 21.5 1 5000 28.5 1
Ordering Information
(25°C and Vs ± 15 Vdc) e-mail: sales@freqdev.com Web Address: http://www.freqdev.com We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider t he information to be true and accurate. Please read all statements, recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We a ssume no responsibility for the use of these statements, recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyri ght. PR-00D51-02 Analog Input Characteristics Impedance 10 k W min. Source Impedance 600 W max. Bias Current Voltage Range ± 10 V peak Maximum Safe Voltage ± Vs Analog Output Characteristics Impedance (Closed Loop) < 1 W typ. 10 W max. Linear Operating Range ± 10 V Maximum Current ±2 m A Offset Voltage ± 5 mV Offset Temp. Coeff. 50 mV / °C Noise 50 mVRMS Gain (non-inverting) 0 ± 0.1 dB @ 1 kHz Power Supply (±Vs) Rated Voltage ± 15 Vdc Operating Range ± 5 to ± 18 Vdc Maximum Safe Voltage ± 18 Vdc Quiescent Current ± 1.5 mA typ. ± 2.0 mA max. Temperature Operating 0 to + 70 °C Storage - 25 to + 85 °C Notes: 1. Maximum allowable series input resistance if gain accuracy's are to be maintained. 2. Capacitor coupled. 3. Output is short circuit protected to common. DO NOT CONNECT TO ±Vs. 4. DC to 50 kHz excluding DC offset with input grounded. Bottom View +VSOUT -VS INGND 0.80 0.70 0.10 0.00 0.00 0.15 0.45 0.55 1.55 1.65 1.80 All dimensions are in inches All case dimensions ± 0.01" Side View 0.80 0.025 dia. 0.15 (min) Front View 0.30 1.80