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ETC5064FN 数据表(PDF) 13 Page - STMicroelectronics |
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ETC5064FN 数据表(HTML) 13 Page - STMicroelectronics |
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13 / 18 page ![]() TRANSMISSION CHARACTERISTICS (continued). DISTORTION Symbol Parameter Min. Typ. Max. Unit STDX or STDR Signal to Total Distortion (sinusoidal test method) Transmit or Receive Half-channel Level = 3.0 dBm0 = 0 dBm0 to – 30 dBm0 = – 40 dBm0 XMT RCV = – 55 dBm0 XMT RCV 33 36 29 30 14 15 dBp (ALAW) dBc ( µLAW) SFDX Single Frequency Distortion, Transmit (TA =25 °C) – 46 dB SFDR Single Frequency Distortion, Receive (TA =25 °C) – 46 dB IMD Intermodulation Distortion Loop Around Measurement, VFXI + = – 4 dBm0 to – 21 dBm0, two Frequencies in the Range 300 Hz-3400 Hz –41 dB CROSSTALK Symbol Parameter Min. Typ. Max. Unit CTX-R Transmit to Receive Crosstalk, 0dBm0 Transmit f = 300 Hz-3400 Hz, DR = Steady PCM Code ETC5064/67 ETC5064-X/67-X –90 – 75 –65 dB dB CTR-X Receive to Transmit Crosstalk, 0dBm0 Receive Level (note 2) f = 300 Hz-3400 Hz, VFXI= 0 V ETC5064/67 ETC5064-X/67-X –90 – 70 –65 dB dB POWER AMPLIFIERS Symbol Parameter Min. Typ. Max. Unit VOL Maximum 0 dBm0 Level for Better than ± 0.1 dB Linearity Over the Range 10 dBm0 to + 3 dBm0 (balanced load, RL connected between VPO + and VPO –) RL = 600 Ω RL = 1200 Ω RL =30 k Ω 33 3.5 4.0 Vrms S/DP Signal/Distortion RL = 600 Ω, 0 dBm0 50 dB Notes : 1. Measured by extrapolation from the distortion test results. 2. PPSRX, NPSRX, CTR–X measured with a –50dBm0 activating signal applied at VFXI + ENCODING FORMAT AT DX OUTPUT A-Law (Including even bit inversion) µLaw VIN (at GSX) = + Full-scale 1 0 1 0 1 0 1 0 1 0 0 0 0 0 0 0 VIN (at GSX)=0 V 1 1 0 1 0 1 0 1 01 01 010 1 1 111 1 111 0 111 1 111 VIN (at GSX) = – Full-scale 0 0 1 0 1 0 1 0 0 0 0 0 0 0 0 0 ETC5064 - ETC5064-X - ETC5067 - ETC5067-X 13/18 |
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