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參數(shù)資料
| 型號(hào)： | SY02-MFTP |
| 廠商： | Raltron Electronics Corporation |
| 英文描述： | SYNCHRONOUS EQUIPMENT HIGH FREQUENCY CLOCK REGENERATOR |
| 中文描述： | 同步設(shè)備高頻時(shí)鐘再生器 |
| 文件頁(yè)數(shù)： | 2/5頁(yè) |
| 文件大?。?/td> | 297K |
| 代理商： | SY02-MFTP |
SYNCHRONOUS EQUIPMENT
HIGH FREQUENCY CLOCK REGENERATOR - SY02-MFTP
RALTRON ELECTRONICS CORP.
10651 N.W.19
th
St
Florida 33172
U.S.A.
Tel: 305 593-6033
Fax: 305-594-3973
e-mail: sales@raltron.com
Internet: http:/www.raltron.com
Figure 1 – Block Diagram (***Components outside the dotted line are user supplied)
DESCRIPTION
The SY02-MFTP is a High Frequency Phase Lock Loop has been designed as a module level subsystem for easy
incorporation into telecommunication equipment. The module generates the high frequency (up to 170MHz) output from a
low jitter VCXO (Crystal Based Oscillator. The output can be disabled externally by setting OUTEN pin high. The SY02-
MFTP can be locked to a user defined input reference signal
(from 8KHz to 77.76MHz…for options please see table )
.
Frequency selection could be simultaneously achieved of up to 4 independent sources while combining the module with an
external MUX. Raltron’s SY02-MFTP device could be used as a frequency translator in PLL circuits or frequency re-
generator device in cases where jitter cleaning and filtering is required. The module has a fast locking time and tolerates
reference inputs with different duty cycles. The loop bandwidth is optimized in accordance with the VCXO used and
required output performance. The ALARM output signals monitor the status of the phase lock loop and indicates LOLD
(Loss of Lock Detect). If the reference REF IN is absent, the SY02-MFTP will automatically switch to free run mode and
LOLD will show “0” logic level. The SMD package dimensions are 0.80”x1.00” inch and powered by a supply of 3.3V.
ALARM STATES
LOL
D
0
Module in Free-run
1
Module locked
Input Reference Control select
ALARM
CNT A
CNT B
Selected Option
0
0
EXT Ref 1
0
1
EXT Ref 2
1
0
EXT Ref 3
1
1
EXT Ref 4
SY02-MFTP
MUX, FPD,
Counters
&
Logic
LOOP
FILTER
VCXO
REF IN
OUT (opt., For PECL )
J-TAG PORT
Ref 2
Input Freq. CNT A
VCXO Monitor
Lock Monitor
E/D
Input Freq. CNT B
MUX
Ref 1
ALARM
Ref 3
Ref 4
Out
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