GS1525 Datasheet PDF - Gennum Corporation

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GS1525
Gennum Corporation

Part Number GS1525
Description HD-LINX II Voltage Controlled Oscillator
Page 9 Pages


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Key Features
• generates 1.485GHz or 1.485/1.001GHz signal for
HD-LINXII ICs
• low current consumption
• 50Ω 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
VCTR
GO1525 HD-LINX™II
Voltage Controlled Oscillator
GO1525 Data Sheet
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 50Ω 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 0°C to +70°C.
This component and all homogeneous subcomponents
are RoHS compliant.
VCC
STRIPLINE
STRIPLINE
OSCILLATOR CIRCUIT
OUT
GND
GO1525 Functional Block Diagram
21969 - 8 July 2005
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Contents
GO1525 Data Sheet
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
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1. Pin Out
1.1 Pin Assignment
NC
GND
O/P
3 21
GO1525 Data Sheet
GND
4
GO1525
TOP VIEW
8 GND
5 67
VCTR
GND
VCC
NOTE: Pin numbers are arbitrary
There are no pin markings on the device itself
1.2 Pin Descriptions
Table 1-1: Pin Descriptions
Pin Number
Name
2, 4, 6, 8
GND
5 VCTR
7 VCC
1 O/P
3 NC
Note: Pin numbering different from GO1515
Type
Power
Input
Power
Output
Description
Most negative power supply connections.
Control voltage for the VCO.
Most positive power supply connection.
VCO signal output.
No connection.
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2. Electrical Characteristics
GO1525 Data Sheet
Table 2-1: Electrical Characteristics
VCC = 2.5V ±0.25V, Temperature = 0°C to 70°C, unless otherwise shown
Parameter
Symbol Conditions
Min Typ Max Units Notes
Supply Voltage
Supply Current
Control Voltage Range
Control Voltage Sensitivity
VCC
ΙS
VCTR
df/dV
Operating Frequency
Range
Output Signal Level
Pushing Figure
ƒVCO
VOUT
Pulling Figure
Temperature Stability
Spurious Response
TCOEF
2.25 2.5 2.75
V Supply Voltage
– – – 15 mA Supply Current
– 1.0 – 1.5 V Control Voltage Range
– 25 32 39 MHz/V Control Voltage
Sensitivity
VCTR = 1.0V
VCTR = 1.5V
1483.5
– MHz Operating Frequency
Range
– – 1485.0 MHz
-12 -9
-6 dBm Output Signal Level
VCC = 2.5V ± 0.25V, ref:
VCC = 2.5V
VSWR = 2.0 for all
phase, ref: 50Ω
0°C to 70°C, ref. = 25°C
1.5 – MHz Pushing Figure
1.0 – MHz Pulling Figure
– ±3 MHz Temperature Stability
– – – -10 dBc Spurious Response
Output Impedance
ZO
– 50 – Ω Output Impedance
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