FAIRCHILD RMPA0963

April 2005
RMPA0963 i-Lo™
Cellular CDMA, CDMA2000-1X and WCDMA
Power Amplifier Module
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General Description
■ 38% CDMA/WCDMA efficiency at +28 dBm Pout
The RMPA0963 Power Amplifier Module (PAM) is Fairchild’s latest innovation in 50 Ohm matched, surface mount modules targeting Cellular CDMA/WCDMA/HSDPA, AMPS and Wireless
Local Loop (WLL) applications. Answering the call for ultra-low
DC power consumption and extended battery life in portable
electronics, the RMPA0963 uses novel proprietary circuitry to
dramatically reduce amplifier current at low to medium RF output power levels (< +16 dBm), where the handset most often
operates. A simple two-state Vmode control is all that is needed
to reduce operating current by more than 50% at 16 dBm output
power, and quiescent current (Iccq) by as much as 70% compared to traditional power-saving methods. No additional circuitry, such as DC-to-DC converters, are required to achieve
this remarkable improvement in amplifier efficiency. Further, the
4x4x1.5 mm LCC package is pin-compatible and a drop-in
replacement for last generation 4x4 mm PAMs widely used
today, minimizing the design time to apply this performanceenhancing technology. The multi-stage GaAs Microwave Monolithic Integrated Circuit (MMIC) is manufactured using Fairchild
RF’s InGaP Heterojunction Bipolar Transistor (HBT) process.
■ Meets HSDPA performance requirements
■ Linear operation in low-power mode up to +19 dBm
■ 50% AMPS mode efficiency at +31 dBm Pout
■ Low quiescent current (Iccq): 20 mA in low-power mode
■ Single positive-supply operation with low power and
shutdown modes
• 3.4V typical Vcc operation
• Low Vref (2.85V) compatible with advanced handset
chipsets
■ Compact Lead-free compliant LCC package –
(4.0 X 4.0 x 1.5 mm nominal)
■ Industry standard pinout
■ Internally matched to 50 Ohms and DC blocked RF
input/output
■ Meets IS-95/CDMA2000-1XRTT/WCDMA performance
requirements
Device
Functional Block Diagram
(Top View)
MMIC
10 GND
Vref 1
Vmode
2
GND
3
RF IN
4
Vcc1
5
BIAS/MODE SWITCH
OUTPUT
MATCH
INPUT
MATCH
9
GND
8
RF OUT
7 GND
6
Vcc2
11 (paddle ground on package bottom)
©2005 Fairchild Semiconductor Corporation
RMPA0963 i-Lo™ Rev. E
1
www.fairchildsemi.com
Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
Features
■ 14% CDMAA/WCDMA efficiency (80 mA total current) at
+16 dBm Pout
RMPA0963
PRELIMINARY
Symbol
Vcc1, Vcc2
Vref
Vmode
Parameter
Supply Voltages
Reference Voltage
Value
Units
5.0
V
2.6 to 3.5
V
3.5
V
RF Input Power
+10
dBm
Tstg
Storage Temperature
-55 to +150
°C
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Note:
1. No permanent damage with one parameter set at extreme limit. Other parameters set to typical values.
Electrical Characteristics1
Symbol
f
Parameter
Min
Operating Frequency
Typ
824
Max
Units
849
MHz
Comments
CDMA/WCDMA Operation
Gp
Power Gain
Po
Linear Output Power
PAEd
Itot
30
20
dB
dB
28
16
PAEd (digital) @ +28 dBm
dBm
dBm
38
Po=+28 dBm; Vmode=0V
Po=+16 dBm; Vmode 2.0V
P
Vmode=0V
Vmode 2.0V
P
%
Vmode=0V
Vmode 2.0V
PAEd (digital) @ +16 dBm
14
%
High Power Total Current
480
mA
Low Power Total Current
80
mA
P
Po=+28 dBm, Vmode=0V
P
Po=+16 dBm, Vmode 2.0V
CDMA
Adjacent Channel Power Ratio
ACPR1
±885 KHz Offset
-50
-55
dBc
dBc
Po=+28 dBm; Vmode=0V
Po=+16 dBm; Vmode 2.0V
ACPR2
±1.98 MHz Offset
-60
-65
dBc
dBc
Po=+28 dBm; Vmode=0V
Po=+16 dBm; Vmode 2.0V
WCDMA
IS-95 A/B Modulation
Adjacent Channel Leakage Ratio
P
P
WCDMA Modulation 3GPP
3.2 03-00 DPCCH +1 DCDCH
ACLR1
±5 MHz Offset
-40
-45
dBc
dBc
Po=+28 dBm; Vmode=0V
Po=+16 dBm; Vmode 2.0V
ACLR2
±10 MHz Offset
-53
-60
dBc
dBc
Po=+28 dBm; Vmode=0V
Po=+16 dBm; Vmode 2.0V
Power Gain
29
dB
Po=+31 dBm
Power-Added Efficiency (analog)
50
%
Po=+31 dBm
P
P
AMPS Operation
Gp
PAEa
General Characteristics
VSWR
NF
Input Impedance
2.0:1
Noise Figure3
2.5:1
4
dB
-134
dBm/Hz
Rx No
Receive Band Noise Power3
2fo-5fo
Harmonic Suppression3
-30
dBc
Po +28 dBm
Spurious Outputs2,3
-60
dBc
Load VSWR 5.0:1
S
3
10:1
Ruggedness w/ Load Mismatch
Tc
Case Operating Temperature
-30
85
Iref
Icc(off)
Quiescent Current
20
Reference Current
2
Shutdown Leakage Current
1
O
O
No permanent damage.
°C
DC Characteristics
Iccq
Po<+28 dBm; 869 to 894MHz
5
P
mA
Vmode 2.0V
mA
Po+28 dBm
µA
No applied RF signal
Notes:
1. All parameters met at Tc = +25°C, Vcc = +3.4V, Vref = 2.85V and load VSWR 1.2:1, unless otherwise noted.
2. All phase angles.
3. Guaranteed by design.
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2
RMPA0963 i-Lo™ Rev. E
www.fairchildsemi.com
Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
Power Control Voltage
Pin
RMPA0963
Absolute Maximum Ratings1
Symbol
Parameter
Min
Typ
Max
Units
Operating Frequency
824
849
MHz
Vcc1, Vcc2
Supply Voltage
3.0
3.4
4.2
V
Vref
Reference Voltage
(Operating)
(Shutdown)
2.7
0
2.85
3.1
0.5
V
V
Bias Control Voltage
(Low-Power)
(High-Power)
1.8
0
2.0
3.0
0.5
V
V
+28
+19
dBm
dBm
+85
°C
Vmode
Pout
Tc
Linear Output Power
(High-Power)
(Low-Power)
+16
Case Operating Temperature
-30
DC Turn-On Sequence
1) Vcc1 = Vcc2 = 3.4V (typical)
2) Vref = 2.85V (typical)
3) High-Power: Vmode = 0V (Pout > 16 dBm)
Low-Power: Vmode = 2V (Pout < 16 dBm)
3
RMPA0963 i-Lo™ Rev. E
www.fairchildsemi.com
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Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
f
RMPA0963
Recommended Operating Conditions
RMPA0963
Evaluation Board Layout
5
1
7
3
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4
2
6
8
6
Materials List
Qty
Item No.
Part Number
Description
Vendor
1
1
G657549-1 V2
PC Board
2
2
#142-0701-841
SMA Connector
Johnson
8
3
#2340-5211TN
Terminals
3M
Ref
4
G657583
Assembly, RMPA0963
Fairchild
Fairchild
2
5
2
5 (Alt)
GRM39X7R102K50V
1000pF Capacitor (0603)
Murata
ECJ-1VB1H102K
1000pF Capacitor (0603)
Panasonic
2
6
C3216X5R1A335M
3.3µF Capacitor (1206)
TDK
1
7
GRM39Y5V104Z16V
0.1µF Capacitor (0603)
Murata
1
7 (Alt)
ECJ-1VB1C104K
0.1µF Capacitor (0603)
Panasonic
1
8
GRM39X7R331K50V
330pF Capacitor (0603)
Murata
A/R
9
SN63
Solder Paste
Indium Corp.
A/R
10
SN96
Solder Paste
Indium Corp.
Evaluation Board Schematic
0.1 µF
1000 pF
Vref
1
Vmode
Vcc1
3.3 µF
6
5
1000 pF
11
330 pF
(package base)
4
RMPA0963 i-Lo™ Rev. E
8
50 Ohm TRL
SMA2
RF OUT
Z
SMA1
RF IN
4
XYTT
50 Ohm TRL
3,7,9,10
0963
2
Vcc2
3.3 µF
www.fairchildsemi.com
Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
Z
XYTT
0963
5
RMPA0963
Package Outline
I/O 1 INDICATOR
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TOP VIEW
2
9
8
0
7
Z T
T
XY 9 6 3
6
5
1.60mm MAX.
FRONT VIEW
.25mm TYP.
3.50mm TYP.
See Detail A
.40mm
.10mm
.30mm TYP.
.10mm
.85mm TYP.
11
3.65mm
.40mm
.45mm
2
1
1.08mm
.18mm
1.84mm
DETAIL A. TYP.
BOTTOM VIEW
Signal Descriptions
Pin #
Signal Name
Description
1
Vref
Reference Voltage
2
Vmode
High Power/Low Power Mode Control
3
GND
Ground
4
RF In
RF Input Signal
5
Vcc1
Supply Voltage to Input Stage
6
Vcc2
Supply Voltage to Output Stage
7
GND
Ground
8
RF Out
RF Output Signal
9
GND
Ground
10
GND
Ground
11
GND
Paddle Ground
5
RMPA0963 i-Lo™ Rev. E
www.fairchildsemi.com
Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
4
Z
3
XYTT
SQUARE
10
0963
(4.00mm
+.100
–.050 )
1
RMPA0963
Application Information
CAUTION: THIS IS AN ESD SENSITIVE DEVICE
Precautions to Avoid Permanent Device Damage:
Solder Materials & Temperature Profile:
• Cleanliness: Observe proper handling procedures to ensure
clean devices and PCBs. Devices should remain in their original packaging until component placement to ensure no contamination or damage to RF, DC & ground contact areas.
• Reflow soldering is the preferred method of SMT attachment.
Hand soldering is not recommended.
Reflow Profile
• Static Sensitivity: Follow ESD precautions to protect against
ESD damage:
• Pre-heat/soak: The soak temperature stage serves two
purposes; the flux is activated and the board and devices
achieve a uniform temperature. The recommended soak
condition is: 120-150 seconds at 150°C.
• A properly grounded static-dissipative surface on which to
place devices.
• Static-dissipative floor or mat.
• A properly grounded conductive wrist strap for each person to wear while handling devices.
• Reflow Zone: If the temperature is too high, then devices
may be damaged by mechanical stress due to thermal
mismatch or there may be problems due to excessive solder oxidation. Excessive time at temperature can enhance
the formation of inter-metallic compounds at the lead/
board interface and may lead to early mechanical failure of
the joint. Reflow must occur prior to the flux being completely driven off. The duration of peak reflow temperature
should not exceed 10 seconds. Maximum soldering temperatures should be in the range 215-220°C, with a maximum limit of 225°C.
• General Handling: Handle the package on the top with a vacuum collet or along the edges with a sharp pair of bent tweezers. Avoiding damaging the RF, DC, & ground contacts on
the package bottom. Do not apply excessive pressure to the
top of the lid.
• Device Storage: Devices are supplied in heat-sealed, moisture-barrier bags. In this condition, devices are protected and
require no special storage conditions. Once the sealed bag
has been opened, devices should be stored in a dry nitrogen
environment.
• Cooling Zone: Steep thermal gradients may give rise to
excessive thermal shock. However, rapid cooling promotes a
finer grain structure and a more crack-resistant solder joint.
The illustration below indicates the recommended soldering
profile.
Device Usage:
Fairchild RF recommends the following procedures prior to
assembly.
• Solder Joint Characteristics: Proper operation of this device
depends on a reliable void-free attachment of the heatsink to
the PWB. The solder joint should be 95% void-free and be a
consistent thickness.
• Dry-bake devices at 125°C for 24 hours minimum. Note: The
shipping trays cannot withstand 125°C baking temperature
• Assemble the dry-baked devices within 7 days of removal
from the oven.
• Rework Considerations: Rework of a device attached to a
board is limited to reflow of the solder with a heat gun. The
device should not be subjected to more than 225°C and
reflow solder in the molten state for more than 5 seconds. No
more than 2 rework operations should be performed.
• During the 7-day period, the devices must be stored in an
environment of less than 60% relative humidity and a maximum temperature of 30°C
• If the 7-day period or the environmental conditions have
been exceeded, then the dry-bake procedure must be
repeated.
Recommended Solder Reflow Profile
240
10 SEC
220
200
183°C
180
160
140
DEG (°C) 120
1°C/SEC
SOAK AT 150°C
FOR 60 SEC
80
45 SEC
(MAX)
ABOVE
183°C
60
1°C/SEC
40
20
0
0
60
120
180
240
300
TIME (SEC)
6
RMPA0963 i-Lo™ Rev. E
www.fairchildsemi.com
Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
• Ramp-up: During this stage the solvents are evaporated
from the solder paste. Care should be taken to prevent
rapid oxidation (or paste slump) and solder bursts caused
by violent solvent out-gassing. A typical heating rate is 12°C/sec.
• Device Cleaning: Standard board cleaning techniques should
not present device problems provided that the boards are
properly dried to remove solvents or water residues.
100
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The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
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FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
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FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
2. A critical component is any component of a life
1. Life support devices or systems are devices or
support device or system whose failure to perform can
systems which, (a) are intended for surgical implant into
be reasonably expected to cause the failure of the life
the body, or (b) support or sustain life, or (c) whose
support device or system, or to affect its safety or
failure to perform when properly used in accordance
with instructions for use provided in the labeling, can be
effectiveness.
reasonably expected to result in significant injury to the
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Product Status
Definition
Advance Information
Formative or
In Design
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
Preliminary
First Production
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
No Identification Needed
Full Production
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
Rev. I15
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RMPA0963 i-Lo™ Rev. E
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Cellular CDMA, CDMA2000-1X and WCDMA Power Amplifier Module (Preliminary)
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RMPA0963
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