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Intersil Electronic Components Datasheet

ISL3084 Datasheet

VCO

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®
Data Sheet
May 2003
ISL3084
FN5042.3
5GHz VCO
The ISL3084 is a 5GHz SiGe
monolithic VCO circuit designed to
simplify and reduce the cost and size
of miniature wireless transceivers.
A fully integrated VCO requiring no external elements such
as inductors and varactors greatly simplifies low cost local
oscillator synthesized applications.
Included in this differential design is a low-power standby
function and a stable process and temperature biasing
operation.
The ISL3084 is housed in a 16 lead QFN package
well-suited for PCMCIA and miniPCI board applications.
Pinout
ISL3084 (QFN)
TOP VIEW
16 15 14 13
VTUNE 1
12 VCC
VCC 2
11 OSC+
GND 3
10 OSC-
Features
• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V
• Frequency . . . . . . . . . . . . . . . . . . . . . . . . . 4.9GHz typical
• Fully Integrated/No External Varactors or Resonators
Required
• Isolation Output Buffer/Reduced Load Pulling
• Differential Design/Reduced Spurs
• Digitally Controlled Power Down Mode
• QFN Package:
- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat
No Leads - Package Outline
- Near Chip Scale Package footprint, which improves
PCB efficiency and has a thinner profile
Applications
• Systems Targeting IEEE802.11b, 11Mbps Standard
• Only required VCO function for Intersil PRISM3 chip set
• WLAN Applications.
• PCMCIA Wireless Transceivers
• TDMA Packet Protocol Radios
Simplified Block Diagram
VCC
VCC
VCC
VTUNE
VCO
OSC+
OSC-
PE BIAS
GND 4
567
Pin Descriptions
PIN NUMBER
1
NAME
VTUNE
2, 6, 12
VCC
5
10
11
15
16
3, 4, 7, 8, 9, 13, 14
Paddle
PE
OSC-
OSC+
FILTER CAP1
FILTER CAP2
GND
N/A
9 GND
8
GND
GND
GND
Ordering Information
PART NUMBER TEMP. RANGE (oC) PACKAGE PKG. NO.
ISL3084IR
-40 to 85
16 Ld QFN L16.4x4
ISL3084IR-TK
-40 to 85
Tape and Reel
DESCRIPTION
Input tuning voltage from loop filter. Sensitivity to external injected noise to KVCO. Careful noise-free
layout recommended.
Supply pins. Requires high quality capacitor RF decoupling. Phase noise behavior proportional to supply
pushing specifications. Use good quality, low-frequency decoupling/filtering techniques.
Power enable control pin: VCO enabled high.
Differential VCO output. Terminate into 100differential impedance. Terminate one end into 50when
single end output with equivalent loss of power.
Use high quality .68µF filter capacitor to ground.
Use high quality .68µF filter capacitor to VCC.
Ground
Floating paddle. Grounding is recommended.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
PRISM® is a registered trademark of Intersil Americas Inc. PRISM and design is a trademark of Intersil Americas Inc.


Intersil Electronic Components Datasheet

ISL3084 Datasheet

VCO

No Preview Available !

ISL3084
Absolute Maximum Ratings
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6V
Voltage on Any Other Pin . . . . . . . . . . . . . . . . . . -0.3 to VCC +0.3V
VCC to VCC Decouple . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V
Any GND to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V
Operating Conditions
Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . .-40o to 85oC
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.3V
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
QFN Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
47
Junction Temperature (Plastic Package) . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
For recommended soldering conditions see Tech Brief TB389.
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
Tech Brief TB379.
General DC Electrical Specifications TA = 25oC
PARAMETER
Supply Voltage
Supply Current @ 3.3V
Power Down Supply Current
Power Up Time, Filtering dependent
Power Down Time
CMOS Low-Level Input Voltage
CMOS High-Level Input Voltage
CMOS High- or Low-Level Input Current
MIN
2.7
-
-
-
-
-
0.7*VCC
-10
TYP
-
-
-
50
-
-
-
-
MAX
3.0
20
100
-
1
0.3*VCC
-
10
UNITS
V
mA
µA
µs
µs
V
V
µA
AC Electrical Specifications VCC = 2.7 to 3.3V, Vtune operation from 0.5 to 2.2V, TA = 25oC
PARAMETER
TEST CONDITIONS
MIN
RF Frequency Ranges
Vtune = 0.5V
-
Vtune = 1.35V
-
Vtune = 2.2V
Tuning Voltage Temperature Coefficient Vtune = 1.35V, -40 to 85oC
5.0
-
Tuning Pin Input Leakage
Vtune = 2.0V
-
VCO Gain
VCO Gain Temperature Coefficient
Vtune = 1.35V
Vtune = 1.35V, -40 to 85oC
250
-
Phase Noise
Offset 10kHz
65
Phase Noise Temperature Coefficient
Offset 100kHz
Offset @ 10kHz, 0 to 85oC
-
-
Integrated Phase Noise @ 5GHz.
10kHz to 1MHz
-
Output Power
Differential into 100
-9
Supply Pushing
VCC = 2.7V–3.3V, across Vtune range
-3
Load Pulling
VSWR = 2:1
Output VSWR
2:1 BALUM
-
TYP
4.67
4.92
5.19
40
-
300
20
70
95
1
1.6
-4
+2
1.8
1.3:1
MAX
4.79
-
-
-
2
350
-
-
-
4
-
+10
UNITS
GHz
GHz
GHz
MHz
µA
MHz/V
MHz/V
dBc/Hz
dBc/Hz
dB
deg_rms
dBm
MHz
MHz
-
2


Part Number ISL3084
Description VCO
Maker Intersil Corporation
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