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ST7540 Folha de dados(PDF) 11 Page - STMicroelectronics |
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ST7540 Folha de dados(HTML) 11 Page - STMicroelectronics |
11 / 44 page ST7540 Electrical characteristics 11/44 VSENSE VSENSE Input impedance 36 k Ω CLTH Current control loop reference threshold on CL pin Figure 17 1.80 1.90 2.00 V CLHYST Hysteresis on current loop reference threshold Figure 17 210 250 290 mV TRxTx Carrier activation time Figure 21 - 600 Baud Xtal = 16MHz 1.6 ms Figure 21- 1200 Baud Xtal = 16MHz 800 µs Figure 21- 2400 Baud Xtal = 16MHz 400 µs Figure 21- 4800 Baud Xtal = 16MHz 200 µs TALC Carrier stabilization time from STEP 16 to zero or from step 16 to step 31, Figure 21 Xtal = 16MHz 3.2 ms TST Tstep Figure 21 Xtal = 16MHz 200 µs Power amplifier PAIN(Offset) Input terminals OFFSET ±18 mV GBWP Gain bandwidth product 100 MHz RIN Input resistance at PA_IN+ and PA_IN- pins PA_IN+ vs. Vss (1) 1 M Ω PA_IN- vs. Vss (1) 1 M Ω CIN Input capacitance at PA_IN+ and PA_IN- pins PA_IN+ vs. Vss (1) 5pF PA_IN- vs. Vss (1) 5pF CMRR Common mode rejection ratio 40 dB Table 5. Electrical characteristics (continued) ( VDD = +5V, VCC =+9 V, VSS = SVSS = GND = 0V,-40°C ≤TA ≤85°C, TJ < 125°C, unless otherwise specified) Symbol Parameter Test condition Min. Typ. Max. Unit |
Nº de peça semelhante - ST7540 |
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Descrição semelhante - ST7540 |
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