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MH88422-2 Datasheet(PDF) 9 Page - Mitel Networks Corporation |
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MH88422-2 Datasheet(HTML) 9 Page - Mitel Networks Corporation |
9 / 14 page Preliminary Information MH88422 2-21 † AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated. ‡Typical figures are at 25 °C with nominal +5V and are for design aid only. Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance. † AC Electrical Characteristics are over Recommended Operating Conditions unless otherwise stated. ‡Typical figures are at 25 °C with nominal +5V and are for design aid only. Note 1: All of the above test conditions use a test source impedance which matches the device’s impedance. AC Electrical Characteristics† - MH88422-3 Characteristics Sym Min Typ‡ Max Units Test Conditions 1 Return Loss at 2-Wire (370 Ω + 620Ω // 310nF) RL 16 20 dB Test circuit as Fig 7 200-4000Hz 2 Longitudinal to Metallic Balance 50 60 dB Test circuit as Fig 8 300-3400Hz 3 Idle Channel Noise at 2-Wire at VX Nc -80 -80 -70 -68 dBmp dBmp 4 Transmit Gain (2-Wire to Vx) -1.4 -0.4 0.9 dB Test circuit as Fig 5 Input 0.5V @ 1kHz Off-Hook 5 Frequency Gain (relative to gain @ 1kHz) -1.6 -2.1 -1.3 -0.5 0.4 0.9 dB dB 300Hz 3400Hz AC Electrical Characteristics† - MH88422BD-1 Characteristics Sym Min Typ‡ Max Units Test Conditions 1 Return Loss at 2-Wire (220 Ω + 820Ω // 115nF) RL 16 22 dB Test circuit as Fig 7 300-3400Hz Ref ZV5 Sec 2.5.2 and 2.8.3 2 Longitudinal to Metallic Balance 30 40 46 65 60 60 dB dB dB Test circuit as Fig 8 50-300Hz 300-600Hz 600-4000Hz Ref ZV5 Sec 2.8.2 3 Idle Channel Noise at 2-Wire at VX Nc -84 -75 -70 -70 dBmp dBmp 4 Transmit Gain (2-Wire to Vx) -1.4 -0.4 0.9 dB Test circuit as Fig 5 Input 0.5V @ 1kHz Off-Hook 5 Frequency Gain (relative to gain @ 1kHz) -1.6 -1.2 -1.3 -0.5 -0.4 0 dB dB 300Hz 3400Hz |
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