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KB8825

Samsung
Part Number KB8825
Manufacturer Samsung
Description 1.1GHZ DUAL PLL
Published Apr 25, 2005
Detailed Description Final version ( 99.4.30 ) 1.1GHZ DUAL PLL KB8825 INTRODUCTION The KB8825 is a high performance dual frequency synthes...
Datasheet PDF File KB8825 PDF File

KB8825
KB8825

Overview
Final version ( 99.
4.
30 ) 1.
1GHZ DUAL PLL KB8825 INTRODUCTION The KB8825 is a high performance dual frequency synthesizer with two integrated high frequency pre-scalers for RF operation up to 1.
1 GHz.
The KB8825 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 KB8825 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.
5mA @ 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 Colpitt type local oscillation Selectable charge pump current Selectable power down mode TSSOP 16-pin package (0.
65 mm pitch) ORDERING INFORMATION Device +KB8825 +: New product Package 16−TSSOP−0044 Operating Temperature −30 °C to + 85 °C APPLICATIONS • • • • Cordless telephone systems Portable wireless communications (PCS) Wireless Local Area Networks (WLANs) Other wireless communication systems 1 Final version ( 99.
4.
30 ) KB8825 1.
1GHZ DUAL PLL BLOCK DIAGRAM Fin1 1 Pre_Amp 1/2 Prescaler 1 32, 33 Buffer Prescaler 1 32, 33 Buffer 1/2 Pre_Amp 16 Fin2 VCC 2 Charge Pump Phase Detector Lock Detector 6 2 15 VCC 2 Charge Pump Phase Detector Switch 14 CP2 13 GND CP1 3 GND 4 Channel 1 Programable Divider Channel 2 Programable Divider LD 5 12 SW CK 6 Control Circuit Reference Divider Local OSC 1/2 Buffer 11 OSCI DATA 7 10 OSCO 17 12 EN 8 9 BO PIN CONFIGURATION Fin1 VCC CP1 GND LD CK DATA EN 1 2 3 4 5 6 7 8 16 15 14 13 Fin2 VCC CP2 GND SW OSCI OSCO BO KB8825 12 11 10 9 16TSSOP 2 Final version ( 99.
4.
30 ) 1.
1GHZ DU...


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