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參數(shù)資料
| 型號： | SY89420 |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 5V/3.3V DUAL PHASE LOCKED LOOP |
| 中文描述： | 5V/3.3V雙鎖相環(huán) |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 92K |
| 代理商： | SY89420 |
The SY89420V device consists of two identical, low
jitter, digital Phase Locked Loops based on Micrel-Synergy's
differential PLL technology. Each of the PLLs (PLLA and
PLLB) is capable of operating in the 30MHz to 560MHz
input reference frequency range independently of the other
and is configurable separately. The PLLs can be configured
to be matched in all regards, or can be configured so that
PLLB is used as a frequency doubler, while PLLA is used
to regenerate the undoubled frequency.
Two reference inputs (RINX and RINX), two feedback
inputs (FINX and FINX), two filter pins (F1X and F2X) and
two differential outputs (FOUTX and FOUTX) are provided
for each of the two PLLs. The reference and feedback
inputs can be used as either differential or single-ended
inputs. In single-ended mode RINX and FINX can be
connected to either V
BB
for normal 100K PECL levels or
V
TH
for normal TTL levels.
Feedback for the loops is realized by connecting FOUTX,
FOUTX to FINX, FINX by means of external circuitry. This
allows the user the flexibility of inserting additional circuitry
off-chip in the feedback paths, such as a divider. Pulldown
resistors are required for the FOUTX and FOUTX pins.
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.
Select pins S1X and S2X are used to program the N
dividers for optimum VCO operation, in other words with
the VCO in the center of its range. Additional select pins,
S3B and S4B, are provided for PLLB. When both S3B and
S4B are low, PLLB is identical to PLLA. When S3B is high,
N
B
can be set to 1, 10, 18, or 20. When S4B is high, the
frequency doubler option is enabled (P = 2). All Select pins
are TTL compatible.
FEATURES
I
3.3V and 5V power supply options
I
1.12GHz maximum VCO frequency
I
30MHz to 560MHz reference input operating
frequency
I
Frequency doubler mode
I
Low jitter design
I
PECL differential outputs
I
PECL and TTL reference voltages available
I
External loop filter optimizes performance/cost
I
Available in 28-pin PLCC package
DESCRIPTION
ClockWorks
SY89420V
5V/3.3V DUAL
PHASE LOCKED LOOP
APPLICATIONS
I
Workstations
I
Advanced communications
I
High-end consumer
I
High-performance computing
PIN CONFIGURATION
S
F
F
FOUTB
V
CC
26
27
28
1
2
3
4
18
17
16
15
14
13
12
25 24 23 22 21 20 19
5
6
7
8
9
10 11
TOP VIEW
PLCC
J28-1
S
S
F
F
S
F
S4B
RINB
V
EE
RINA
RINA
V
BB
S
V
T
F
V
CCOB
FOUTB
FOUTA
FOUTA
V
CCOA
F
F
RINB
1
Rev.: K
Issue Date:
Amendment: /0
May 2000
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SY89420VJC | 5V/3.3V DUAL PHASE LOCKED LOOP |
| SY89420VJCTR | 5V/3.3V DUAL PHASE LOCKED LOOP |
| SY89420V | 5V/3.3V Dual Phase Locked Loop(5V/3.3V 雙鎖相環(huán)) |
| SY89421VZC | 5V/3.3V HIGH-PERFORMANCE PHASE LOCKED LOOP |
| SY89421VZCTR | 5V/3.3V HIGH-PERFORMANCE PHASE LOCKED LOOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY89420V | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5V/3.3V DUAL PHASE LOCKED LOOP |
| SY89420VJC | 功能描述:IC PHASE LOCK LOOP 5/3.3V 28PLCC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:ClockWorks™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| SY89420VJC TR | 功能描述:IC PHASE LOCK LOOP 5/3.3V 28PLCC RoHS:否 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:ClockWorks™ 標(biāo)準(zhǔn)包裝:27 系列:Precision Edge® 類型:頻率合成器 PLL:是 輸入:PECL，晶體 輸出:PECL 電路數(shù):1 比率 - 輸入:輸出:1:1 差分 - 輸入:輸出:無/是 頻率 - 最大:800MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 5.25 V 工作溫度:0°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件 |
| SY89420VJCTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:5V/3.3V DUAL PHASE LOCKED LOOP |
| SY89420VJZ | 功能描述:鎖相環(huán) - PLL 5V/3.3V Dual Phase Locked Loop (Lead Free) RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
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