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RF5198 Schematic ( PDF Datasheet ) - RF Micro Devices

Teilenummer RF5198
Beschreibung W-CDMA LINEAR POWER AMPLIFIER MODULE
Hersteller RF Micro Devices
Logo RF Micro Devices Logo 




Gesamt 8 Seiten
RF5198 Datasheet, Funktion
www.DataSheet4U.com
RF5198
0 3V 1950MHZ W-CDMA LINEAR POWER
AMPLIFIER MODULE
RoHS Compliant & Pb-Free Product
Typical Applications
• 3V W-CDMA Band 1 Handsets
• 3V TD-SCDMA Handsets
• Multi-Mode W-CDMA 3G Handsets
• Spread-Spectrum Systems
Product Description
The RF5198 is a high-power, high-efficiency linear ampli-
fier module specifically designed for 3V handheld sys-
tems. The device is manufactured on an advanced third
generation GaAs HBT process, and was designed for use
as the final RF amplifier in 3V W-CDMA handheld digital
cellular equipment, spread-spectrum systems, and other
applications in the 1920MHz to 1980MHz band (Band 1).
The RF5198 has a digital control pin for low power appli-
cations to lower quiescent current. This PA also includes
a power detector circuit. The RF5198 is assembled in at
16-pin, 3mmx3mm, QFN package.
Pin 1 ID
3.00
A
1.45
3.00 1.45
0.15 C
2 PLCS
0.15 C
2 PLCS
B
0.203 REF
00..4200TYP
0.10 M C A B
0.08 C
0.925
0.775
0.102 REF
Shaded areas represent pin 1. Dimensions in mm.
C
Pin 1 ID
00..2188TYP
0.05
0.50 TYP
0.08 C
Optimum Technology Matching® Applied
Si BJT
9GaAs HBT
GaAs MESFET
Si Bi-CMOS
SiGe HBT
Si CMOS
InGaP/HBT
GaN HEMT
SiGe Bi-CMOS
16 15 14 13
RF IN 1
GND 2
Interstage MN
Q1
IMN
Q2
12 VCC2
11 VCC2
VMODE 3
VREG 4
5
Bias
Integrated
Power
Detector
OMN
10 VCC2
9 RF OUT
67
8
Functional Block Diagram
Rev A5 060310
Package Style: QFN, 16-Pin, 3x3
Features
• Input/Output Internally Matched@50Ω
• 27.5dBm Linear Output Power
• 42% Peak Linear Efficiency
• -41dBc ACLR @ ±5MHz
• Integrated Power Detector
• HSDPA Capable
Ordering Information
RF5198
3V 1950MHz W-CDMA Linear Power Amplifier Mod-
ule
RF5198PCBA-41XFully Assembled Evaluation Board
RF Micro Devices, Inc.
7628 Thorndike Road
Greensboro, NC 27409, USA
Tel (336) 664 1233
Fax (336) 664 0454
http://www.rfmd.com
2-1






RF5198 Datasheet, Funktion
RF5198
Evaluation Board Schematic
VCC1
VCC2
C30
4.7 μF
C6
DNI
R11
0Ω
L21
8.2 nH
C10
22 μF
P2-4
P2-3
P2-1
P1-5
VCC BIAS
J1
RF IN
C3
1 nF
50 Ω μstrip
P2
5 GND
VMODE
4 VCC BIAS
3 VCC1
2 GND
1 VCC2
CON5
VREG
C40
4.7 μF
C20
4.7 μF
C2
1 nF
P1
5 VDET
4 GND
3 GND
SUT = Select Under Test
R28 C5
0 Ω DNI
16 15 14 13
1
Interstage MN
Q1
IMN
2
Q2
12
11
3
4
5
Bias
Integrated
Power
Detector
OMN
10
9
67
8
C1
1 nF
50 Ω μstrip
J2
RF OUT
R35
5.1 kΩ
R5
0Ω
R46
SUT Ω
C47
4.7 nF
VDET
NOTES
1. L2 is removed when VCC1 is not connected to VCC2, and R1 is placed.
5. R3 = 5.1 kΩ typ. This load resistor determines the detector sensitivity.
An internal 15 pF capacitor is in parallel with this load resistor.
6. R4 is optional and may be used in conjunction with R5 to scale V_DET
(max) if desired.
7. C4 is used in conjunction with R3 and R5 to set the rise and fall time of
the detected output voltage, and trade-off acceptable voltage ripple
versus rise/fall time.
8. R2 is removed when VCC BIAS is not connected to VCC1,2.
P1-2 2 VREG
P1-1 1 VMODE
CON5
2-6 Rev A5 060310

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