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STCD2400F35F 数据表(PDF) 7 Page - STMicroelectronics |
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STCD2400F35F 数据表(HTML) 7 Page - STMicroelectronics |
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7 / 39 page ![]() STCD22x0, STCD23x0, STCD24x0 Device overview Doc ID 15400 Rev 2 7/39 Figure 2. Block diagram Note: Enable signals (EN1-4) can be factory programmed either active high or active low for STCD23x0 and can have different polarity options by configuring OPT1 and OPT2 for STCD22x0 and STCD24x0. Master clock request (MCREQ) is open drain output and active low. Figure 3. Hardware hookup (master clock enable active low) VCC MCREQ VTCXO MCLK EN1 EN2 GND BYP CLK1 CLK2 EN3 CLK3 EN4 CLK4 STCD24x0 VTCXO VTCXO VTCXO VTCXO LDO Bandgap VCC 1 2 3 4 OPT2 OPT1 ai14021 C C C Clock #4 output Clock #3 output Clock #2 output Clock #1 output Enable control EN4 EN3 EN2 EN1 CLK4 CLK3 CLK2 CLK1 OPT1 OPT2 MCLK MC REQ VTCXO BYP V CC V CC XO EN VIO STCD24x0 V DD ai14028a |
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