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3GHZ DUAL PLL S1T8825B INTRODUCTION The S1T8825B is a high performance dual frequency synthesizer with two integrated high frequency pre-scalers for RF operation up to 1.
3 GHz.
The S1T8825B is composed of modulus pre-scalers providing 64 and 66, no dead-zone PFD, selectable charge pump current, selectable power down mode circuits, lock detector output, and loop filter ’s time constant switch.
It is fabricated using the ASP5HB Bi-CMOS process and is available 16-TSSOP with surface mount plastic packaging.
Serial data is transferred into the S1T8825B via three-wire interface (CK, DATA, EN).
16−TSSOP−0044 FEATURES • • • • • • • • • Two systems for receiver and transmi...

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