Datenblatt-Suchmaschine für elektronische Bauteile |
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MC145443 Datenblatt(PDF) 3 Page - Motorola, Inc |
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MC145443 Datenblatt(HTML) 3 Page - Motorola, Inc |
3 / 12 page MC145442 •MC145443 MOTOROLA 3 DC ELECTRICAL CHARACTERISTICS (VDD = 5.0 V ± 10%, TA = – 40 to + 85°C) Characteristic Symbol Min Typ Max Unit High–Level Input Voltage LB Xin, TxD, Mode, SQT VIH VDD – 0.8 3.15 — — — — V Low–Level Input Voltage LB Xin, TxD, Mode, SQT VIL — — — — 0.8 1.1 V High–Level Output Voltage IOH = 20 µA CD, RxD IOH = 2 mA CD, RxD IOH = 20 µA Xout VOH VDD – 0.1 3.7 — — — VDD – 0.05 — — — V Low–Level Output Voltage IOL = 20 µA CD, RxD IOL = 2 mA CD, RxD IOL = 20 µA Xout VOL — — — — — 0.05 0.1 0.4 — V Input Current LB, TxD, Mode, SQT RxA1, RxA2 Xin Iin — — — — 10 — ± 1.0 ± 12 ± 10 µA Quiesent Supply Current (Xin or fcrystal = 3.579 MHz) IDD — 7 10 mA Power–Down Supply Current — 200 300 µA Input Capacitance Xin All Other Inputs Cin — — 10 — — 10 pF VAG Output Voltage (IO = ± 10 µA) VAG 2.4 2.5 2.6 V CDA Output Voltage (IO = ± 10 µA) VCDA 1.1 1.2 1.3 V Line Driver Feedback Resistor Rf 10 20 30 k Ω AC ELECTRICAL CHARACTERISTICS (VDD = 5.0 V ± 10%, TA = – 40 to + 85°C, Crystal Frequency = 3.579 MHz ± 0.1%; See Figure 1) Characteristic Min Typ Max Unit TRANSMITTER Power Output on TxA RL = 1.2 kΩ, RTLA = ∞ RL = 1.2 kΩ, RTLA = 5.5 kΩ – 13 – 10 – 12 – 9 – 11 – 8 dBm Second Harmonic Power RL = 1.2 kΩ — – 56 — dBm RECEIVE FILTER AND HYBRID Hybrid Input Impedance RxA1, RxA2 40 50 — k Ω FB Output Impedance — 16 — k Ω Adjacent Channel Rejection – 48 — — dBm DEMODULATOR Receive Carrier Amplitude – 48 — – 12 dBm Dynamic Range — 36 — dB Bit Jitter (S/N = 30 dB, Input = – 38 dBm, Bit Rate = 300 baud) — 100 — µs Bit Bias — 5 — % Carrier Detect Threshold On to Off (CDA = 1.2 V or CDA grounded through a 0.1 µF capacitor) Off to On — — – 44 – 47 — — dBm |
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