S1T8825
S1T8825 is 1.1GHZ DUAL PLL manufactured by Samsung Semiconductor.
PRELIMINARY ( VER.2.1 )
1.1GHZ DUAL PLL
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 posed 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 S1T8825 via three-wire interface (CK, DATA, EN).
16- TSSOP- 0044
Features
- -
- Two systems for receiver and transmitter Very low operating current consumption: Icc = Typ. 5.5m A @ 3.0V Low operating power supply voltage : 2.2 ~ 5.5V ( 200MHz ~ 550MHz Operating ) 2.7 ~ 3.6V ( 550MHz ~ 1.1GHz Operating )
- -
- -
- - Modulus pre-scaler: 64 / 66 No dead-zone PFD Colpitts type local oscillation Selectable charge pump current Selectable power down mode TSSOP 16-pin package (0.65 mm pitch)
ORDERING INFORMATION
Device +S1T8825X01-R0B0
+: New Product
Package 16- TSSOP- 0044
Operating Temperature
- 30 °C to + 85 °C
APPLICATIONS
- -
- - Cordless telephone systems Portable wireless munications (PCS) Wireless Local Area Networks (WLANs) Other wireless munication systems
PRELINIMARY( VER.2.1 )
1.1GHZ DUAL PLL
BLOCK DIAGRAM
Fin1
Pre_Amp
1/2
Prescaler 1 32, 33
Buffer
Prescaler 1 32,...
