Specifications

DATA SHEET QF4A512
Rev D4, Dec 07 10 www.quickfiltertech.com
9 DV
DD18
Power +1.8V DC Power (Digital)
10 DGND Ground Digital Ground
11 DGND Ground Digital Ground
12 /CS Input Chip Select from SPI Bus (Low logic selects chip). Internal pull-up.
13 DRDY/SEL Input/Output
High when new data is ready, if pulled high accesses EEPROM direct.
Internal pull-down.
14 SDO Output SPI Serial Data Output
15 SDI Input SPI Serial Data Input
16 SCLK Input SPI Clock (Maximum 40 MHz)
17 /RST Input Chip RESET (Low logic resets chip). Internal pull-up.
18 DGND Ground Digital Ground
19 DV
DD18
Power +1.8V DC Power (Digital)
20 DV
DD33
Power +3.3V DC Power (Digital)
21 XV
DD18
Power Filtered +1.8V DC Power for Internal Oscillator
22 XIN Input Crystal connection or external clock input (5-200 MHz)
23 XOUT Output Crystal connection
24 XGND Ground Ground for Internal Oscillator
25 PGND Ground Ground for Phase Lock Loop
26 PV
DD18
Power +1.8V DC Filtered Power for Phase Lock Loop
27 AGND Ground Analog Ground
28 AV
DD18
Power +1.8V DC Power (Analog)
29 AV
DD18
Power +1.8V DC Power (Analog)
30 AGND Ground Analog Ground
31 AGND Ground Analog Ground
32 AV
DD33
Power +3.3V DC Power (Analog)