ISL3984IR [INTERSIL]
2.4GHz Power Amplifier and Detector; 2.4GHz的电源放大器器和检测器
| 型号： | ISL3984IR |
| 厂家： | 
Intersil |
| 描述： | 2.4GHz Power Amplifier and Detector |
| 文件： | 总7页 (文件大小：116K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ISL3984
TM
Data Sheet
December 2000
File Number 4862.4
PRELIMINARY
2.4GHz Power Amplifier and Detector
Features
The ISL3984 is a 2.4GHz monolithic
SiGe Power Amplifier designed to
operate in the ISM Band. It features
[ /Title
(ISL39
84)
/Sub-
ject
(2.4G
Hz
Power
Ampli-
fier
and
Detec-
tor)
/Autho
r ()
/Key-
words
(Inter-
sil
• Single Supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.6V
• Output Power . . . . . . . . . . .18dBm (Typ) at ACPR, DSSS,
1st Side Lobe < -30dBc, 2nd Side Lobe < -50dBc
two low voltage single supply stages.
• Power Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30dB (Typ)
• Detector Linear Input Power Range . . . . . . . . . . . . . .15dB
• Detector Accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±1dB
Cascaded, they deliver 18dBm (Typ) output power for the
typical DSSS signal (ACPR, 1st Side Lobe < -30dBc, 2nd
Side Lobe < -50dBc).
In addition, the device includes a 2.4GHz detector which is
accurate over a 15dB dynamic range within (±)1dB.
Therefore, an accurate ALC function can be implemented.
Applications
• IEEE802.11 1, 2 or 5.5Mbps Standard
• Systems Targeting IEEE802.11b, 11Mbps Standard
• Wireless Local Area Networks (WLAN)
• PCMCIA Wireless Transceivers
The ISL3984 is housed in a 16 lead MLFP package well
suited for PCMCIA board applications.
• ISM Systems Including Automatic Level Control (ALC)
• TDMA Packet Protocol Radios
Ordering Information
TEMP
o
PART NUMBER RANGE ( C)
PACKAGE
16 Ld MLFP
PKG. NO.
Pinouts
ISL3984 (MLFP)
ISL3984IR
-40 to 85
-40 to 85
L16.4x4
TOP VIEW
ISL3984IR96
Tape and Reel
Simplified Block Diagram
12
11 10
9
Corpo-
ration,
semi-
con-
ductor,
Wire-
less
DS_VCC
DET_OUT 13
VCC_DET 14
PE 15
8
7
6
5
GND
PACKAGE PINOUT
GND
RF_IN
RF_OUT
SUBJECT TO CHANGE
RF_OUT
GND
PEAK DETECTOR
BIAS_GND 16
BIAS
LOG
1
3
2
4
Com-
muni-
cations
, RF,
PE
REXT DET_OUT
Radio
Fre-
quency
, IF,
Inter-
medi-
ate
Fre-
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000
PRISM® is a registered trademark of Intersil Corporation. PRISM and design is a trademark of Intersil Corporation.
ISL3984
The ISL3984 contains a highly linear RFPA designed to deliver
Pin Descriptions
18dBm and meet an ACPR specification of -30dBc in the 2.4 to
2.5GHz ISM band. The performance of this two stage RFPA
can be optimized by adjusting the bias current with a dedicated
resistor. No external positive or negative power supplies are
required to set the bias currents. The on chip bias network
provides the optimum bias current temperature compensation
when low TC external resistor is used. To get the best
performance from the ISL3984, the output stage matching
network can be tailored using external components.
PIN NUMBER
NAME
DESCRIPTION
1
2
BIAS_VCC Power Supply.
REXT
Bias Resistor, biasing scheme
independent of absolute
temperature.
3
DS_VCC Driver Stage Power Supply.
GND DC and RF Ground.
RF_OUT RF Output of the Power Amplifier.
4, 5
The ISL3984 power detect function provides a DC output
voltage that is proportional to the logarithm of the output
power. For an output power of 18dBm, the detector is
accurate to within a 0.5dB. The slope of the detector output
voltage is 100mV/dB over a 15dB dynamic range. A simple
application of the detector is to provide in-line monitoring of
the output power using a DC voltmeter. No longer is a power
meter or spectrum analyzer required. A more value added
application would use the HFA3861B/HFA3863 Baseband
Processor to dynamically monitor the ISL3984 output power
and to control transmit power by adjusting the AGC of the
HFA3783 IF Quadrature Modem to provide the best possible
error free data transfer rate for any given environment.
Closed loop power control is very important feature which
compensates for variability in the transmit chain (radio to
radio, channel to channel, over temperature...).
6
7, 8, 9, 10
GND
RF_IN
GND
DC and RF Ground.
11
12
13
14
15
RF Input of the Power Amplifier.
DC and RF Ground.
DET_OUT Detector Output.
VCC_DET Detector Power Supply.
PE
Digital Input Control Pin to enable
operation of the Power Amplifier.
Enable logic level is high.
16
BIAS_GND DC and RF Ground.
The ISL3984 power up/down feature integrates the power
down capability onto the IC and requires no external
components thus freeing up board space and reducing
external component count and cost. When the CMOS
compatible Power Enable (PE) pin is driven low, the total
supply current drops to under 50µA in, typically, 300ns.
When the PE pin is driven high, the full ISL3984 output
power is available in a few hundred nanoseconds.
The ISL3984 works seamlessly with the PRISM II and
PRISM II.V WLAN chip set components to give you a highly
integrated, cost effective 11Mb/s WLAN solution in the 2.4 to
2.5GHz ISM band. The ISL3984 is fabricated in the fastest
SiGe BiCMOS process available allowing superior RF
performance, normally found only in GaAs ICs. Cost effective
functions, normally requiring external components, are
integrated into one IC. The ISL3984 integrates the following
functions in one compact 16 pin MLFP:
In summary, the ISL3984 RFPA provides a highly cost
effective solution for the PA function by integrating many
features that would require significant development time,
drive up the total bill of materials cost and consume precious
board space. It mates seamlessly with the other PRISM II
ICs to provide a highly integrated, cost effective 11Mb/s
WLAN solution in the 2.4 to 2.5GHz ISM band.
• Two Stage, 30dB Gain RFPA,
• Logarithmic power detect function (15dB Dynamic
Range),
• CMOS level compatible Power Up/Down function,
• Single Supply, 2.7V to 3.6V Operation.
2
ISL3984
Absolute Maximum Ratings
Thermal Information
o
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4V
Voltage on Any Other Pin. . . . . . . . . . . . . . . . . . . -0.3 to V +0.3V
Thermal Resistance (Typical, Note 1)
θ
( C/W)
JA
CC
Decouple . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V
MLFP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
30
o
V
to V
CC
CC
Maximum Junction Temperature (Plastic Package) . . . . . . . .150 C
o
o
Any GND to GND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3 to +0.3V
Maximum Storage Temperature Range. . . . . . . . . . -65 C to 150 C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . .300 C
o
Operating Conditions
o
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to 85 C
Supply Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V to 3.6V
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. θ is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See
JA
Intersil TB379.
General DC Electrical Specifications
o
PARAMETER
TEMP. ( C)
Full
MIN
TYP
MAX
UNITS
V
Supply Voltage
2.7
-
137
-
3.6
Total Power Amplifier Supply Current at 3.3V, 18dBm Output
RF Detector Supply Current
25
-
-
-
-
-
-
2
-
mA
mA
µA
ns
25
Power Down Supply Current
Full
200
300
-
Power Up/ Down Speed
Full
-
CMOS Low Level Input Voltage
Full
0.3*V
-
V
DD
CMOS High Level Input Voltage (V
CMOS Threshold Voltage
= 3.6V)
Full
0.7*V
-
V
DD
DD
Full
>0.3*V
-10
0.5*V
-
<0.7*V
+10
V
DD
DD
DD
CMOS High or Low Level Input Current
Full
µA
Power Amplifier AC Electrical Specifications
V
= 3.3V, f = 2.45GHz, Unless Otherwise Specified. Typical Application Circuit
CC
(external input and output matching networks) has been used.
o
PARAMETER
RF Frequency Range
TEST CONDITIONS
TEMP. ( C)
MIN
TYP
MAX
2500
35
UNITS
MHz
dB
Full
Full
25
2400
-
30
-
Power/Voltage Gain
Input 50Ω VSWR
Output 50Ω VSWR
Output Power
27
-
2:1
3:1
-
-
25
-
-
-
ACPR, DSSS, 1st Side Lobe <-
30dBc, 2nd Side Lobe <-50dBc
Full
-
18
dBm
Output Stability VSWR
Output Load Mismatch
NOTE:
Output Spurs Less than -60dBc
(Note 2)
Full
Full
-
-
-
-
10:1
10:1
-
-
2. Devices sustain no damage when subjected to a mismatch of maximum 10:1.
Peak Detector AC Electrical Specifications
TEMP.
o
PARAMETER
RF Output Detector Response Time
RF Output Detector Voltage Range
RF Output Detector Linearity
RF Output Detector Accuracy
RF Output Detector Slope
TEST CONDITIONS
External Capacitor, C = 5pF
Load > 1M
( C)
MIN
TYP
MAX
-
UNITS
µs
Full
Full
Full
Full
Full
-
0
0.15
-
-
1.5
0.5
+1
-
V
Over Linear Range
-0.5
-1
-
dB/V
dB
600mV
Output
-
DC
Over Linear Range
10
dB/V
3
ISL3984
Typical Application Example
ISL3984 - 16 PIN MLFP PACKAGE
L
2
BLM31P500S
RFIN (
50Ω)
V
3.3V
CC
P1
P2
C
C
3
0.1µF
1
4.7µF
D
1
DL4001
12
10
9
11
C
11
270pF
R
1kΩ
4
DETOUT
13
14
15
16
8
7
6
5
C
9
R
V
3
CC
1000pF
10Ω
C
PE
6
R
2
1000pF
100kΩ
V
CC
1
3
2
4
C
4
1000pF
C
2
1000pF
L
5
2.2nH
RFOUT (
50Ω)
L
C
4
5
C
8
1.8pF
C
7
V
CC
BLM10A1215
1000pF
10pF
Typical Performance Curves
-5
-5
-17
-20
-17
-20
o
-40 C
2.7V
o
25 C
-29
-29
3.6V
o
85 C
2.0
2.4 2.5
3.0
2.0
2.4 2.5
FREQUENCY (GHz)
3.0
FREQUENCY (GHz)
FIGURE 1. INPUT RETURN LOSS OVER VOLTAGE
FIGURE 2. INPUT RETURN LOSS OVER TEMPERATURE
4
ISL3984
Typical Performance Curves (Continued)
-4
-4
o
-40 C
2.7V
-9
-9
o
25 C
-10
-10
o
85 C
3.6V
2.0
2.4 2.5
3.0
2.0
2.4 2.5
FREQUENCY (GHz)
3.0
FREQUENCY (GHz)
FIGURE 3. OUTPUT RETURN LOSS OVER VOLTAGE
FIGURE 4. OUTPUT RETURN LOSS OVER TEMPERATURE
32
32
3.6V
30
30
o
-40 C
28
28
2.7V
o
25 C
o
85 C
2.0
2.4 2.5
3.0
2.0
2.4 2.5
3.0
FREQUENCY (GHz)
FREQUENCY (GHz)
FIGURE 5. LINEAR GAIN OVER VOLTAGE
FIGURE 6. LINEAR GAIN OVER TEMPERATURE
0
0
o
85 C
1
1
2
3.6V
2
o
2.7V
25 C
o
-40 C
o
85 C
3.6V
2.7V
o
-40 C
o
25 C
-25
-11
INPUT POWER (dBm)
-5
-25
-11
INPUT POWER (dBm)
-5
FIGURE 7. GAIN COMPRESSION OVER VOLTAGE
FIGURE 8. GAIN COMPRESSION OVER TEMPERATURE
5
ISL3984
Typical Performance Curves (Continued)
2.7V
3V
3.3V
3.6V
-40C
25C
85C
CENTER FREQUENCY 2450MHz
CENTER FREQUENCY 2450MHz
SPAN 50MHz
SPAN 50MHz
INPUT POWER -2dBm
INPUT POWER -2dBm
FIGURE 9. DSSS OUTPUT SIGNAL OVER VOLTAGE
FIGURE 10. DSSS OUTPUT SIGNAL OVER TEMPERATURE
0.9
0.8
0.7
0.9
0.8
0.7
o
85 C
0.6
0.5
0.4
0.3
0.6
o
25 C
0.5
0.4
o
2.7V
0.2
-40 C
0.3
0.2
3.6V
0.1
0
0.1
13
14
15
16
17
18
19
20
13
14
15
16
17
18
19
20
OUTPUT POWER (dBm)
OUTPUT POWER (dBm)
FIGURE 11. DETECTOR OUTPUT OVER VOLTAGE
FIGURE 12. DETECTOR OUTPUT OVER TEMPERATURE
6
ISL3984
Micro Lead Frame Plastic Package (MLFP)
2X
L16.4x4
0.25
E1/2
A2
C A
16 LEAD MICRO LEAD FRAME PLASTIC PACKAGE
(COMPLIANT TO JEDEC MO-220-VGGC ISSUE A)
D
A
D/2
INCHES
MIN
MILLIMETERS
D1
SYMBOL
MAX
0.039
0.002
0.031
MIN
MAX
1.00
0.05
0.80
NOTES
D1/2
A
A1
A2
A3
b
-
-
-
-
-
-
2X
N
0.25 C
B
6
0.50 DIA.
1
2
3
E/2
0.008 REF
0.20 REF
0.009
0.014
0.23
0.35
5
7
7
E1
E
B
D
0.157 BSC
0.147 BSC
4.00 BSC
3.75 BSC
2.25
D1
D2
E
0.20 C B
0.20 C A
-
0.088
-
-
2X
0.157 BSC
0.147 BSC
4.00 BSC
3.75 BSC
TOP VIEW
E1
E2
e
2X
0
-
0.088
2.25
0.65 BSC
A
C
0.026 BSC
0.05 C
L
0.019
0.029
0.50
0.75
A3 A1
SIDE VIEW
N
16
4
16
4
2
3
3
SEATING
PLANE
Nd
Ne
P
5
b
4
4
0.10 M C A B
7
4X P
4X P
0.009
-
0.024
12
0.24
-
0.60
12
D2
θ
D2/2
Rev. 2 8/00
N
NOTES:
1
1. Dimensioning and tolerancing per ASME Y14.5-1994.
2. N is the number of terminals.
2
3
(Ne-1)Xe
REF.
E2
3. Nd is the number of terminals in the X direction, and Ne is the
number of terminals in the Y direction.
7
E2/2
4. Controlling dimension: Millimeters. Converted dimensions to
inches are not necessarily exact. Angles are in degrees.
L
e
5. Dimension b applies to the plated terminal and is measured
between 0.20mm and 0.25mm from the terminal tip.
(Nd-1)Xe
REF.
6. The Pin #1 identifier exists on the top surface as an
indentation mark in the molded body.
C
C
BOTTOM VIEW
A1
7. Dimensions D2 and E2 are the maximum exposed pad
dimensions for improved grounding and thermal
performance.
C
L
C
b
L
5
SECTION "C-C"
e
e
TERMINAL TIP
FOR ODD TERMINAL/SIDE
FOR EVEN TERMINAL/SIDE
All Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems.
Intersil Corporation’s quality certifications can be viewed at website www.intersil.com/quality/iso.asp.
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time without notice.
Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. How-
ever, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see web site www.intersil.com
7
相关型号：
ISL3985IR-TK
2400MHz - 2500MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER, PLASTIC, MLFP, MO-220-VHHB, QFN-16
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