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GO1525 HD-LINXTMII
Voltage Controlled Oscillator
GO1525 Data Sheet
21969 - 8
July 2005
1 of 9
Key Features
generates 1.485GHz or 1.485/1.001GHz signal for
HD-LINX
TM
II ICs
low current consumption
50
output impedance
operates from a single 2.5V supply
8 pin tape on reel
Pb-free and RoHS Compliant
Applications
VCO for the GS1560, GS1559 and GS9060
Deserializers, and the GS1532, GS1531 and
GS9062 Serializers
Description
The GO1525 is a self contained, miniature Voltage
Controlled Oscillator (VCO). It produces a clean
1.485GHz reference clock signal for the GS1560 and
GS9060 deserializers, and for the GS1532 and
GS9062 serializers. The control voltage range is from
1.0 volts to 1.5 volts and is derived from the on-chip
PLLs. The GO1525 frequency can be pulled
approximately 32MHz for every one volt of control.
The output level is typically -9.0dBm with low spurious
and noise content. It is designed to drive 50
strip lines.
The VCO requires a single 2.5V supply and draws a
maximum of 15mA of current. It is packaged in a
miniature 8-pin proprietary surface mount package and
operates over the normal commercial temperature
range of 0C to +70C.
This component and all homogeneous subcomponents
are RoHS compliant.
GO1525 Functional Block Diagram
OSCILLATOR CIRCUIT
STRIPLINE
STRIPLINE
VCTR
VCC
OUT
GND
GO1525 Data Sheet
21969 - 8
July 2005
2 of 9
Contents
Key Features.................................................................................................................1
Applications...................................................................................................................1
Description ....................................................................................................................1
1. Pin Out ......................................................................................................................3
1.1 Pin Assignment ...............................................................................................3
1.2 Pin Descriptions ..............................................................................................3
2. Electrical Characteristics...........................................................................................4
3. Soldering Recommendations ....................................................................................5
3.1 Reflow Conditions ...........................................................................................6
3.2 Soldering Flux .................................................................................................6
3.3 Rework or Repair ............................................................................................6
3.4 Endurance To Warp ........................................................................................6
4. Handling Recommendations .....................................................................................7
4.1 Cleaning ..........................................................................................................7
4.2 Storage ...........................................................................................................7
4.3 Transport .........................................................................................................7
4.4 ESD Warning ..................................................................................................7
5. Package & Ordering Information...............................................................................8
5.1 Package Dimensions ......................................................................................8
5.2 Packaging Data ...............................................................................................8
5.3 Ordering Information .......................................................................................8
6. Revision History ........................................................................................................9
GO1525 Data Sheet
21969 - 8
July 2005
3 of 9
1. Pin Out
1.1 Pin Assignment
1.2 Pin Descriptions
GO1525
NC
GND
O/P
GND
GND
GND
VCC
VCTR
3
2
1
4
8
5
7
6
NOTE: Pin numbers are arbitrary
There are no pin markings on the device itself
TOP VIEW
Table 1-1: Pin Descriptions
Pin Number
Name
Type
Description
2, 4, 6, 8
GND
Power
Most negative power supply connections.
5
V
CTR
Input
Control voltage for the VCO.
7
V
CC
Power
Most positive power supply connection.
1
O/P
Output
VCO signal output.
3
NC
No connection.
Note: Pin numbering different from GO1515
GO1525 Data Sheet
21969 - 8
July 2005
4 of 9
2. Electrical Characteristics
Table 2-1: Electrical Characteristics
V
CC
= 2.5V 0.25V, Temperature = 0C to 70C, unless otherwise shown
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Notes
Supply Voltage
V
CC
2.25
2.5
2.75
V
Supply Voltage
Supply Current
S
15
mA
Supply Current
Control Voltage Range
V
CTR
1.0
1.5
V
Control Voltage Range
Control Voltage Sensitivity
df/dV
25
32
39
MHz/V
Control Voltage
Sensitivity
Operating Frequency
Range
VCO
VCTR = 1.0V
1483.5
MHz
Operating Frequency
Range
VCTR = 1.5V
1485.0
MHz
Output Signal Level
V
OUT
-12
-9
-6
dBm
Output Signal Level
Pushing Figure
V
CC
= 2.5V 0.25V, ref:
V
CC
= 2.5V
1.5
MHz
Pushing Figure
Pulling Figure
VSWR = 2.0 for all
phase, ref: 50
1.0
MHz
Pulling Figure
Temperature Stability
T
COEF
0C to 70C, ref. = 25C
3
MHz
Temperature Stability
Spurious Response
-10
dBc
Spurious Response
Output Impedance
Z
O
50
Output Impedance
GO1525 Data Sheet
21969 - 8
July 2005
5 of 9
3. Soldering Recommendations
The device is manufactured with Matte-Sn terminations and is compatible with both
standard eutectic and Pb-free solder reflow profiles. The recommended standard
eutectic reflow profile is shown in
Figure 3-1
. The maximum recommended Pb-free
reflow profile is shown in
Figure 3-2
.
Figure 3-1: Standard Eutectic Solder Reflow Profile
Figure 3-2: Maximum Pb-free Solder Reflow Profile
25C
100C
150C
183C
230C
220C
Time
Temperature
6 min. max
120 sec. max
60-150 sec.
10-20 sec.
3C/sec max
6C/sec max
25C
150C
200C
217C
260C
250C
Time
Temperature
8 min. max
60-180 sec. max
60-150 sec.
20-40 sec.
3C/sec max
6C/sec max
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