General low pass filter with optimum performance
Electrical Specifications (Operating Temperature5-40¢J Relative Humidity20-90%RH)
reference impedance load : 600£[
DC Resistance : < 50£[
Impedance :25 Hz and 50 Hz !U 40 KΩ
Insulation resistance: DC/250V (A-wire and B-wire ) >25 M£[ to earth >100 M£[
Insertion Loss :1K HZ < 1 d B
Frequency Response/Insertion Loss Distortion :
- 1KHZ 200HZ<4KHZ + -1 d B
(The absolute difference between the insertion loss at any frequency in the range 200 Hz to 4 000 Hz and the insertion loss at 1 kHz shall be less than 1 dB.)
Isolation (High Freq. Insertion Loss ):
- 32 kHz to 150kHz > 30d B
- 150 kHz to 1.104MHz >55 d B
Return loss (Line to Phone and Phone to Line):
- 300HZ to 500HZ >14 d B
- 500HZ to 2KHZ >18 d B
- 2KHZ to 3.4KHZ > 14 dB
- 3.4KHZ to 4KHZ > 8 d B
Delay Distortion :200 HZ to 4KHZ <200 u S
468S-F1?468S-F1 SPC
