SYNCHRONOUS EQUIPMENT
CLOCK/SYNCHRONIZER - SY02-PLL2
SY02-PLL2
Date: December 12, 2003
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INTRODUCTION
The SY02-PLL2 is a crystal-based PLL synchronizer designed as a module level subsystem for easy incorporation
into telecommunication equipment.
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FEATURES
Low jitter output from intrinsically low jitter VCXO;
Two references inputs, user selects the frequencies;
Alarms and status;
Buffered reference output;
Tri-state (high impedance) reference and oscillators outputs;
Provides free running clock output of
±20ppm;
The unit changes timing modes in response to external events;
J-TAG service port for re-programming and servicing;
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APPLICATIONS
Line Cards
ATM
SDH
PDH
SONET
Other telecommunication equipment.
RALTRON ELECTRONICS CORP.
!
10651 N.W.19 St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
th
SYNCHRONOUS EQUIPMENT
CLOCK/SYNCHRONIZER - SY02-PLL2
FRS
ALARM
REF OUT
CNT
FREE-RUN
REFA
REFB
MUX,
FPD,
Counters
&
Logic
LOOP
FILTER
OUT
VCXO
J-TAG PORT
EN OUT
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DESCRIPTION
The SY02-PLL2 is a Phase Lock Loop has been designed as a module level subsystem for easy incorporation into
telecommunication equipment. The module generates the output from a low jitter VCXO and provides recovered
signal as secondary output. The SY02-PLL2 has two reference inputs with frequencies that can be selected by user
from 8 to 77.76MHz. The input reference selection pin (CNT) selects which reference will be used. The loop
bandwidth is optimized according to used VCXO and wanted output performance. The ALARM output signal
monitors the status of the phase loop in case of Loss of Lock (LOL) and Loss of Reference (LOR) both internal
signals. The two control inputs provides module to go into free-run regardless of the reference (FREE_RUN) and to
the tri-state high impedance output (OUT EN). The SMD package dimensions are 19.4 x 20.3 mm and power supply
is 3.3V.
- INPUT REFERENCE SELECTION
CNT
0
1
Reference selected
REF A
REF B
- OUTPUT PROGRAMMING
EN OUT
0
1
0
FREE-RUN
0
X
1
FRS output
0
0
1
OUTPUT
Locked to Reference
Hi-Z Tri-State
Free-Run
- ALARM STATES
LOL
0
1
0
LOR
0
0
1
ALARM
0 -No alarm
1- Loss of Lock
1-Loss of Reference
RALTRON ELECTRONICS CORP.
!
10651 N.W.19 St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
th
SYNCHRONOUS EQUIPMENT
CLOCK/SYNCHRONIZER - SY02-PLL2
•
PIN DESCRIPTION
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Name
REF OUT
TCK
TMS
GND
FREE-RUN
ALARM
REF B IN
REF A IN
OUT
FRS
Vcc
TDO
OUT EN
CNT
Description
Reference Output -> The recovered signal from reference.
J-TAG port for factory usage – TCK
J-TAG port for factory usage – TMS
Ground
Free-Run -> Control input to force unit to run as free running oscillator
Alarm output -> Output signal presents if LOL or LOR
Reference B Input -> Reference input signal
Reference A Input -> Reference input signal
Oscillator Output -> Output of the module
Free Run Status Output -> Status of free run mode.
Positive supply voltage
J-TAG port for factory usage – TDO
Output Enable -> Control input to enable/disable the module output
Control Input -> Select one of the reference input
RALTRON ELECTRONICS CORP.
!
10651 N.W.19 St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
th
SYNCHRONOUS EQUIPMENT
CLOCK/SYNCHRONIZER - SY02-PLL2
•
ORDERING INFORMATION
SY02-PLL2– IP
<
Input Frequency>
- OU<Output
Freq.>-S<Supply Voltage>-T<Temp. Range>-C<Cover Opt.>
See above Chart
(If not listed Place
NL
and state the Freq.)
See above Chart
(If not listed Place
NA
and state the Freq.)
Supply Voltage
4
- 3.3V
Operating Temperature Range
C
-
0°C to 70°C
I
-40°C to +85°C
Cover Option
M
– Metal Cover
N
- Non Covered unit
- INPUT/OUTPUT FREQUENCIES AVAILABLE:
Frequency
8KHz
1.024MHz
1.544MHz
2.048MHz
4.096MHz
6.1760MHz
6.480MHz
8.192MHz
10.000MHz
12.800MHz
13.000MHz
15.000MHz
16.384MHz
19.440MHz
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Suffix
F8
E0
T1
E1
E2
T2
D1
E3
A1
S1
G1
A2
E4
O1
Frequency
20.000MHz
20.4800MHz
26.0000MHz
27.0000MHz
32.768MHz
34.560MHz
37.0560MHz
38.880MHz
44.7360MHz
51.8400MHz
61.4400MHz
62.5000MHz
65.5360MHz
77.7600MHz
Suffix
M1
A4
G2
A6
E4
A8
A9
O2
T3
D1
U1
G1
B2
O3
For other frequencies contact the factory!
Add to P/N “EXT” for extended operating temperature (-40°
to 85°C)
RALTRON ELECTRONICS CORP.
!
10651 N.W.19 St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
th
SYNCHRONOUS EQUIPMENT
CLOCK/SYNCHRONIZER - SY02-PLL2
•
SPECIFICATION
Mechanical
Power
Environment
19.4 x 20.3 mm
3.3VDC, <100mA
Operating Temperature
Storage Temperature
Humidity
Voltage Controlled Crystal Oscillator
(VCXO) and Crystal Oscillator (XO)
2
See the table
LVCMOS/LVTTL Compatible
2
See the table
LVCMOS
Recovered REF IN
LVCMOS
±25ppm
min
<0.001UI RMS
2
µs,
10 Hz (0.05 UI @ 8KHz)
±20ppm
max. 0°C to 70°C
SMT Module FR4 14pins dual-in-line
Regulated
0°C to 70°C
(Extended Temp. available -40° to 85°C)
-40° to 85°C
5% to 95% non-condensing
General
Specifications
Internal Oscillators
Input Signals
Number of Reference Inputs
Input reference frequency
Signal Level
Number of Outputs
Output 1
Output 1 Signal Level
Output 2
Output 2 Signal Level
Tracking/Capture Range
Jitter generation
Jitter tolerance
Free run accuracy
Select by external pins
Output Signals
User defined
Signal Quality
Performance
Frequency Output
Performance
No reference signal
RALTRON ELECTRONICS CORP.
!
10651 N.W.19 St
!
Florida 33172
!
U.S.A.
Tel: 305 593-6033
!
Fax: 305-594-3973
!
e-mail: sales@raltron.com
!
Internet: http://www.raltron.com
th
