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Preliminary
RF2189
3V, 2.5GHZ LINEAR POWER AMPLIFIER
2
Typical Applications
* 2.5GHz ISM Band Applications * PCS Communication Systems * Wireless LAN Systems
* Commercial and Consumer Systems * Portable Battery-Powered Equipment * Broadband Spread-Spectrum Systems
2
POWER AMPLIFIERS
Product Description
2 1 0.80 TYP 1
The RF2189 is a linear, medium-power, high-efficiency amplifier IC designed specifically for low voltage operation. The device is manufactured on an advanced Gallium Arsenide Heterojunction Bipolar Transistor (HBT) process, and has been designed for use as the final RF amplifier in 2.5GHz spread-spectrum transmitters. The device is provided in a 16-pin leadless chip carrier with a backside ground and is self-contained with the exception of the output matching network and power supply feed line.
3.75 0.75 0.50
0.45 0.28
3.75
+
1.60 4.00
12 1.50 SQ INDEX AREA 3 3.20 4.00 1.00 0.90
0.75 0.65
NOTES:
1 Shaded Pin is Lead 1. 2 Dimension applies to plated terminal and is measured between 0.10 mm and 0.25 mm from terminal tip.
0.05 0.00
Dimensions in mm.
The terminal #1 identifier and terminal numbering convention 3 shall conform to JESD 95-1 SPP-012. Details of terminal #1 identifier are optional, but must be located within the zone indicated. The identifier may be either a mold or marked feature. 4 5 Pins 1 and 9 are fused. Package Warpage: 0.05 max.
Optimum Technology Matching(R) Applied
Si BJT Si Bi-CMOS
u
Package Style: LCC, 16-Pin, 4x4
GaAs HBT SiGe HBT
GaAs MESFET Si CMOS
Features
* Single 3.3V Power Supply * +25dBm Saturated Output Power * 20dB Small Signal Gain * High Power Added Efficiency
VCC2
VCC2
VCC1 14
GND
1 GND GND NC 2 3 4 5 NC
16
15
13 12 11 10 RF OUT
Bias Circuits
NC
* Power Down Mode
RF OUT NC
* 1800MHz to 2500MHz Frequency Range
6 RF IN
7 NC
8 VPC
9 GND
Ordering Information
RF2189 RF2189 PCBA 3V, 2.5GHz Linear Power Amplifier Fully Assembled Evaluation Board
Functional Block Diagram
RF Micro Devices, Inc. 7628 Thorndike Road Greensboro, NC 27409, USA
Tel (336) 664 1233 Fax (336) 664 0454 http://www.rfmd.com
Rev A4 010424
2-249
RF2189
Absolute Maximum Ratings Parameter
Supply Voltage Power Control Voltage (VPC) DC Supply Current Input RF Power Operating Ambient Temperature Storage Temperature Moisture sensitivity
Preliminary
Refer to "Handling of PSOP and PSSOP Products" on page 16-15 for special handling information.
Rating
-0.5 to +6.0 -0.5 to 3.3 350 +12 -40 to +85 -40 to +150 JEDEC Level 3
Unit
VDC V mA dBm C C
Caution! ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate at the time of this printing. However, RF Micro Devices reserves the right to make changes to its products without notice. RF Micro Devices does not assume responsibility for the use of the described product(s).
2
POWER AMPLIFIERS
Parameter
Overall
Frequency Range Maximum Saturated Output Power Efficiency at Max Output Power Small Signal Gain Reverse Isolation Second Harmonic IM3 IM5 IM7 Isolation Input Impedance Input VSWR Noise Figure
Specification Min. Typ. Max.
1800 to 2500 +24 42 20 30 30 -50 -30 -35 -48 -30 50 2:1 7 -23 -30 -35
Unit
Condition
T=25 C, VCC =3.3V, VPC =3.0V, PIN =0dBm, Freq=2450MHz
+23
+26
MHz dBm % dB dB dB dBc dBm dBm dBm dBm dB
PIN =+6dBm
19
-20
In "ON" state In "OFF" state Including second harmonic trap, see application circuit POUT =+17dBm in each tone POUT =+17dBm in each tone POUT =+17dBm in each tone In "OFF" state, PIN =0dBm
Power Down
Power Control "ON" Power Control "OFF" PC Input Impedance 5 3.0 to 5.0 260 150 100 <1 2.7 0 3.0 0.5 V V Voltage supplied to control input; device is "ON" Voltage supplied to control input; device is "OFF"
k
V mA mA mA A
Power Supply
Operating Voltage Current Consumption 180 95 50 Current Consumption 320 175 150 10 Power Down "ON", at max output power Power Down "ON", two-tone test +20dBm average output power Idle current Power Down "OFF"
2-250
Rev A4 010424
Preliminary
Pin 1 2 3 4 5 6 7 8 Function GND GND GND NC NC RF IN NC PC Description
Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Same as pin 1. Same as pin 1. Not connected. Not connected. RF input. This input is DC coupled, so an external blocking capacitor is required if this pin is connected to a DC path. Not connected. Power control pin. For maximum power this pin should be 3.3V. A higher voltage is not recommended. For less output power and reduced idle current this voltage may be reduced.
PC
RF2189
Interface Schematic
2
POWER AMPLIFIERS See pin 1.
VCC1 500 To RF Stages
9 10 11
GND NC RF OUT
Ground connection. Keep traces physically short and connect immediately to ground plane for best performance. Not internally connected. RF output and bias for the output stage. The power supply for the output transistor needs to be supplied to this pin. This can be done through a quarter-wave length microstrip line that is RF grounded at the other end, or through an RF inductor that supports the required DC currents. Same as pin 11. Not connected. Power supply pin for the bias circuits. External low frequency bypass capacitors should be connected if no other low frequency decoupling is nearby. Bias supply pin for the first stage. A small tuning capacitor is required to set the desired frequency response. External low frequency bypass capacitors should be connected as shown in the application schematic if no other low frequency decoupling is nearby. See pin 5. See pin 11.
RF OUT
12 13 14 15
RF OUT NC VCC1 VCC2
VCC2
RF IN
BIAS
16 Pkg Base
VCC2 GND
Connected internally to pin 15. Ground connection. The backside of the package should be connected to the ground plane through a short path, i.e., vias under the device may be required.
See pin 15. See pin 1 and 6.
Rev A4 010424
2-251
RF2189
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
Preliminary
C8 10 nF
C2 1 nF VCCT VCC
2
POWER AMPLIFIERS
L2 1 k Ferrite C30 9 pF C6 10 pF 1 2 3 4 5 6 7 8 16 15 14 13 12
C7 1 F C26 100 pF C4 22 pF
L1 3.3 nH
Bias Circuits
50 strip 11 10 9 P1 P1-1 1 2 3 C15 22 uF P1-4 P1-5 4 5 CON5 GND VCC VCC VPC P2-2 P2 1 2 CON2 GND VPC C1 2.2 pF C3 15 pF
J2 RF OUT
C5 15 pF
C13 10 nF
50 strip
J1 RF IN VPC
2-252
Rev A4 010424
Preliminary
Evaluation Board Layout Board Size 2.0" x 2.0"
Board Thickness 0.031"; Board Material FR-4
RF2189
2
POWER AMPLIFIERS
Rev A4 010424
2-253
RF2189
Preliminary
2
POWER AMPLIFIERS
2-254
Rev A4 010424

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