EEWORLDEEWORLDEEWORLD

Part Number

Search

SY89421V_11

Description
PLL FREQUENCY SYNTHESIZER, PDSO20
Categoryaccessories   
File Size65KB,8 Pages
ManufacturerMicrochip
Websitehttps://www.microchip.com
Download Datasheet Compare View All

SY89421V_11 Overview

PLL FREQUENCY SYNTHESIZER, PDSO20

5V/3.3V
HIGH-PERFORMANCE
PHASE LOCKED LOOP
FEATURES
s
3.3V and 5V power supply options
s
1.12GHz maximum VCO frequency
s
30MHz to 560MHz reference input operating
frequency
s
External 2.0GHz VCO capability
s
Low jitter differential design
s
Frequency doubler mode
s
PECL Differential output
s
External loop filter optimizes performance/cost
s
Available in 20-pin SOIC package
ClockWorks™
SY89421V
FINAL
DESCRIPTION
The SY89421V is a digital Phase Locked Loop based on
Micrel-Synergy's differential PLL technology. It is capable
of operating in the 30MHz to 560MHz reference input
frequency range, and up to 2000MHz with the HFIN input
and an external VCO. Use of a phase-frequency detector
results in excellent PLL locking and tracking characteristics.
Error correction voltages are generated by the detector if
either phase or frequency deviations occur. The VCO has
a frequency range covering more than a 2:1 ratio from
480MHz to 1120MHz.
Feedback for the loop is realized by connecting FOUT,
FOUT to FIN, FIN by means of external circuitry. This
allows the flexibility of inserting additional circuitry off-chip
in the feedback paths, such as an additional divider and/or
buffer. Pulldown resistors are required for the FOUT and
FOUT pins. High frequency inputs HFIN, HFIN and
corresponding outputs HFOUT, HFOUT are featured for
use with external components such as an active loop filter
and a high frequency VCO.
Select pins S1 and S2 are used to program the N divider
for optimum VCO operation, in other words with the VCO in
the center of its range. Select pin S3 allows bypassing the
N divider enabling the PLL to output the VCO directly.
Select pin S4 is used to select off-chip or on-chip VCO.
Select pin S5 enables the divide-by-two prescaler, which is
useful in frequency doubling applications. All Select pins
are TTL compatible.
APPLICATIONS
s
Workstations
s
Advanced communications
s
High-performance computing
PIN CONFIGURATION
S1
FIN
FIN
V
EE
F1
F2
S5
HFIN
HFIN
1
2
3
4
5
6
7
8
9
20
19
18
17
S2
RIN
RIN
S3
V
CC
FOUT
FOUT
V
CCO
HFOUT
HFOUT
TOP VIEW
SOIC
Z20-1
16
15
14
13
12
11
S4 10
Rev.: F
Amendment: /0
1
Issue Date: May 2000

SY89421V_11 Related Products

SY89421V_11 SY89421VZC SY89421V SY89421VZCTR
Description PLL FREQUENCY SYNTHESIZER, PDSO20 PLL FREQUENCY SYNTHESIZER, PDSO20 PLL FREQUENCY SYNTHESIZER, PDSO20 PLL FREQUENCY SYNTHESIZER, PDSO20
Renesas development board routine + quadrotor data + AD9850_AD9851_module
[size=5]The information I have collected recently is summarized below, including Renesas development board routines, quadcopter information, AD9850_AD9851_module[/size]...
VIPregister Electronics Design Contest
430 and RF communication circuits seeking advice
I would like to ask how I assigned the pins of 430f149 to the RF module (the ones with * are RF module signals I don't know if this allocation of clk and data transceiver is feasible. Please give me s...
kings316 Microcontroller MCU
The MicroPython Getting Started Guide has been officially published
[i=s]This post was last edited by dcexpert on 2017-12-5 14:12[/i] [size=14px]The MicroPython Getting Started Guide is finally officially published. [/size] [img=300,407]http://www.micropython.org.cn/b...
dcexpert MicroPython Open Source section
MicroPython now supports external SDRAM for STM32F7DISCO
Micropython has started to support the onboard 16M SDRAM of the STM32F7Disc development board. I will find time to update and review the new firmware in the near future. [url=https://github.com/microp...
dcexpert MicroPython Open Source section
What happens when a fast recovery tube in a circuit experiences an instantaneous reverse voltage?
Dear all the experts, I am working on a 50W power supply project recently. The input is 230V, the output is 24V, the electronic load pulls 2.4A, the reverse withstand voltage of the tube is about 400V...
benny512 Power technology
About the debugger
1. When the system to be debugged becomes larger, unstable phenomena occasionally occur. For example, after downloading is completed, the system needs to be interrupted. At this time, when the interru...
clj2004000 DSP and ARM Processors

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 365  1764  2478  620  498  8  36  50  13  11 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号