Datasheet > PLL2060X

PLL2060X

更新时间： 2024-11-09 23:28:43

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描述
PLL2060X 40MHz ~ 400MHz FSPLL\|Data Sheet

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数据手册

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PLL2060X 数据手册

40MHz ~ 400MHz FSPLL

PLL2060X

FEB. 2000. Ver1.11

Features

General Description

The PLL2060X is a Phase-Locked Loop (PLL) frequency

synthesizer constructed in CMOS process technology.

The PLL macrofunctions provide frequency multiplication

capabilities.The output clock frequency, F_OUT, is related to

the reference input clock frequency, F_IN, by the fllowing

equation:

- 0.25um CMOS process technology

- 2.5V, 1.8V power supply available

- Output frequency range

40 ~ 400MHz (2.5V), 40 ~ 270MHz (1.8V)

- Jitter ±100ps

- Output signal duty ratio 40% to 60%

- Output frequency changed by programmable

divider ratio

F_OUT= ((M1+2)*(M2+2)*F_IN) / (P+2)*(2^S)

where

F_OUTis the output clock frequency. F_INis the reference

input clock frequency. M1,M2,P and S are the values for

programmable dividers. PLL2060X consists of a

Phase/Frequency Detector(PFD), a Charge Pump an

External Loop Filter, a Voltage Controlled Oscillator(VCO),

a 5bit Pre-divider, a 5bit Main divider, 4bit Main divider

and 2bit Post scaler as shown in Figure 1.

- Power down mode

FUNCTIONAL BLOCK DIAGRAM

Loop

FIN

Pre Divider

P (5bit)

FOUT

Charge

Pump

Post Scaler

S (2bit)

PFD

Filter

VCO

(Internal)

F_FEED

FVCO

Main Divider

M2 (5bit)

Main Divider

M1 (4bit)

Figure 1. FUNCTIONAL BLOCK DIAGRAM

SAMSUNG ELECTRONICS Co. LTD

1/6

12 3 4 5 6

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