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ADF7021 датащи(PDF) 7 Page - Analog Devices |
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ADF7021 датащи(HTML) 7 Page - Analog Devices |
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7 / 44 page ![]() Preliminary Technical Data ADF7021 Rev. PrI | Page 7 of 44 TIMING CHARACTERISTICS VDD = 3 V ± 10%, VGND = 0 V, TA = 25°C, unless otherwise noted. Guaranteed by design, but not production tested. Table 2. Parameter Limit at TMIN to TMAX Unit Test Conditions/Comments t1 <10 ns SDATA to SCLK setup time t2 <10 ns SDATA to SCLK hold time t3 <25 ns SCLK high duration t4 <25 ns SCLK low duration t5 <10 ns SCLK to SLE setup time t6 <20 ns SLE pulse width t8 <25 ns SCLK to SREAD data valid, readback t9 <25 ns SREAD hold time after SCLK, readback t10 <10 ns SCLK to SLE disable time, readback SCLK SLE DB31 (MSB) DB30 DB2 DB1 (CONTROL BIT C2) SDATA DB0 (LSB) (CONTROL BIT C1) t6 t1 t2 t3 t4 t5 Figure 2. Serial Interface Timing Diagram t8 t3 t1 t2 t10 t9 X RV16 RV15 RV2 RV1 SCLK SDATA SLE SREAD REG7 DB0 (CONTROL BIT C1) Figure 3. Readback Timing Diagram |
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