Datasheet ADL5320 (Analog Devices)

400 MHz to 2700 MHz ¼ Watt RF Driver Amplifier Data Sheet ADL5320 FEATURES FUNCTIONAL BLOCK DIAGRAM Operation: 400 MHz to 2700 MHz GND Gain of 16.9 dB at 880 MHz (2) OIP3 of 45.0 dBm at 880 MHz ADL5320 P1dB of 25.4 dBm at 880 MHz Noise figure: 4.1 dB at 880 MHz BIAS Power supply voltage: 3.3 V to 5 V 1 2 3
001
Power supply current: 44 mA to 104 mA RFIN GND RFOUT
05840-
Dynamically adjustable bias
Figure 1.
No bias resistor required Thermally efficient, MSL-1 rated SOT-89 package Operating temperature range: −40°C to +105°C ESD rating of ±4 kV (Class 3A) APPLICATIONS Wireless infrastructure Automated test equipment ISM/AMR applications GENERAL DESCRIPTION
The ADL5320 incorporates a dynamically adjustable biasing The ADL5320 also delivers excellent adjacent channel power circuit that al ows for the customization of OIP3 and P1dB ratio (ACPR) vs. output power and bias voltage. The driver can performance from 3.3 V to 5 V without the need for an external deliver greater than 17 dBm of output power at 2140 MHz while bias resistor. This feature gives the designer the ability to tailor achieving an ACPR of −55 dBc at 5 V. If the bias is reduced to driver amplifier performance to the specific needs of the design. 3.3 V, the −55 dBc ACPR output power reduces to 9 dBm. This feature also creates the opportunity for dynamic biasing of
–20
the driver amplifier, where a variable supply is used to allow for full 5 V biasing under large signal conditions and then can reduce
–30 Bc) d
the supply voltage when signal levels are smaller and lower power
( T E
consumption is desirable. This scalability reduces the need to
S –40 F F
evaluate and inventory multiple driver amplifiers for different
SOURCE R O –50 V E CC = 5V
output power requirements from 22 dBm to 26 dBm output
VCC = 3.3V
power levels.
–60 CARRI Hz
The ADL5320 is also rated to operate across the wide temperature
5M –70
range of −40°C to +105°C for reliable performance in designs
R @
that experience higher temperatures, such as power amplifiers.
–80 ACP
The 1∕4 watt driver amplifier also covers the 400 MHz to 2700 MHz wide frequency range and only requires a few external components
–90 –20 –15 –10 –5 0 5 10 15 20
131 to be tuned to a specific band within that wide range. This high
POUT (dBm)
05840- performance, broadband RF driver amplifier is well suited for a Figure 2. ACPR vs. Output Power, Single Carrier W-CDMA TM1-64 at variety of wired and wireless applications including cellular 2140 MHz infrastructure, ISM band power amplifiers, defense equipment, and instrumentation equipment. A fully populated evaluation board is available.
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Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Typical Scattering Parameters Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics High Temperature and 3.3 V Operation Applications Information Basic Layout Connections Soldering Information and Recommended PCB Land Pattern Matching Procedure Optimizing OP1dB W-CDMA ACPR Performance Evaluation Board Outline Dimensions Ordering Guide