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ACS8525A Datasheet(PDF) 5 Page - Semtech Corporation |
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ACS8525A Datasheet(HTML) 5 Page - Semtech Corporation |
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5 / 112 page  ACS8525A LC/P ADVANCED COMMS & SENSING FINAL DATASHEET Revision 1.00/September 2007 © Semtech Corp. Page 5 www.semtech.com Note...I = Input, O = Output, P = Power, TTLU = TTL input with pull-up resistor, TTLD = TTL input with pull-down resistor. Pin Description Table 1 Power Pins Pin Number Symbol I/O Type Description 8, 9, 12 VD1+, VD2+, VD3+ P - Supply Voltage: Digital supply to gates in analog section, +3.3 Volts ±5%. 22 VDD_DIFF P - Supply Voltage: Digital supply for differential output pins 19 and 20, +3.3 Volts ±5%. 27 VDDCLMP P - Digital Supply for input over-voltage clamping to +3.3 volts. Leave floating for no clamping. 32, 36, 38, 39, 45, 46, 54 VDD1, VDD2, VDD3, VDD4, VDD5, VDD6, VDD7 P - Supply Voltage: Digital supply to logic, +3.3 Volts ±5%. 4 VA1+ P - Supply Voltage: Analog supply to clock multiplying PLL, +3.3 Volts ±5%. 14, 57 VA2+, VA3+ P - Supply Voltage: Analog supply to output PLLs APLL2 and APPL1, +3.3 Volts ±5%. 15, 58 AGND3, AGND4 - Supply Ground: Analog ground for output PLLs APLL2 and APPL1. 7, 10, 11 DGND1, DGND2, DGND3 P - Supply Ground: Digital ground for components in PLLs. 31, 40, 53 DGND4, DGND5, DGND6 P - Supply Ground: Digital ground for logic. 21 GND_DIFF P - Supply Ground: Digital ground for differential ports. 1, 3 AGND1, AGND2 P - Supply Ground: Analog grounds. Table 2 Internally Connected Pin Number Symbol I/O Type Description 2, 16, 60, 61, 62, 63 IC1, IC2, IC3, IC4, IC5, IC6, - - Internally Connected: Leave to float. 55, 59 NC1, NC2 - - Not Connected: Leave to float. Table 3 Other Pins Pin Number Symbol I/O Type Description 5 INTREQ O TTL/CMOS Interrupt Request: Active High/Low software Interrupt output. 6 REFCLK I TTL Reference Clock: 12.800 MHz (refer to section headed Local Oscillator Clock). 13 SRCSW I TTLD Source Switching: Force Fast Source Switching on SEC1 and SEC2. 17 FrSync O TTL/CMOS Output Reference: 8 kHz Frame Sync output. |
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