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SA7025 Datasheet(PDF) 3 Page - NXP Semiconductors |
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SA7025 Datasheet(HTML) 3 Page - NXP Semiconductors |
3 / 22 page Philips Semiconductors Product specification SA7025 1GHz low-voltage Fractional-N synthesizer 1996 Aug 6 3 PIN DESCRIPTIONS Symbol Pin Description CLOCK 1 Serial clock input DATA 2 Serial data input STROBE 3 Serial strobe input VSS 4 Digital ground RFIN 5 Prescaler positive input RFIN 6 Prescaler negative input VCCP 7 Prescaler positive supply voltage. This pin supplies power to the prescaler and RF input buffer REFIN 8 Reference divider input RA 9 Auxiliary current setting; resistor to VSSA AUXIN 10 Auxiliary divider input PHA 11 Auxiliary phase detector output VSSA 12 Analog ground PHI 13 Integral phase detector output PHP 14 Proportional phase detector output VDDA 15 Analog supply voltage. This pin supplies power to the charge pumps, Auxiliary prescaler, Auxiliary and Reference buffers. RN 16 Main current setting; resistor to VSSA RF 17 Fractional compensation current setting; resistor to VSSA LOCK 18 Lock detector output TEST 19 Test pin; connect to VDD VDD 20 Digital supply voltage. This pin supplies power to the CMOS digital part of the device |
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