S1T8825 - 1.1GHZ DUAL PLL
Pin No.
1 2, 15 3 4, 13 5 6 7 8 9 10 11 12 14 16 Symbol Fin1 Vcc CP1 GND LD CK DATA EN BO OSCO OSCI SW CP2 Fin2 I/O I * O * O I I I O O I O 0 I Description Input terminal of channel 1 RF signal.
Power supply voltage input.
PIN2 and PIN15 are connected together.
Output terminal of cha
PRELIMINARY ( VER.2.1 ) 1.1GHZ DUAL PLL S1T8825 INTRODUCTION The S1T8825 is a high performance dual frequency synthesizer with two integrated high frequency pre-scalers for RF operation up to 1.1 GHz.
The S1T8825 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 wit
S1T8825 Features
* Two systems for receiver and transmitter Very low operating current consumption: Icc = Typ. 5.5mA @ 3.0V Low operating power supply voltage : 2.2 ~ 5.5V ( 200MHz ~ 550MHz Operating ) 2.7 ~ 3.6V ( 550MHz ~ 1.1GHz Operating )
