1.8~2.7GHz Low-Noise Amplifier

Transcription

1 DATA SHEET LXK62E:.8~2.7GHz Low-Noise Amplifier CREOTECH Applications 82.b/g/n PC cards NICs, and USB dongles 82.b/g/n tablets 82.b/g/n access point, routers, and gateways 2.4 GHz ISM radios Microwave Radio & Test Equipment 3G & TD_LTE systems Beidou systems Product Description The LXK62E is an ultra Low-Noise Amplifier (LNA) intended for.8ghz~2.7ghz wireless receiver applications. Its low Noise Figure (NF), together with high linearity, makes it ideal as a perfect LNA in 82.b/g/n Wireless Local Area Network radios, Beidou systems and TD_LTE systems. Features Ultra-low Noise Figure at 2. 5GHz:. db.8 GHz to 2.7 GHz operation + v Enable/disable mode High IIP3: +4 dbm 8 High gain: 4dB 2.8 to 5. V single-supply operation Single, positive DC supply voltage DFN (6-pin,.6 x.6 x.55 mm) package Operating with a single supply voltage, the LXK62E consumes only 2 ma of current. The device includes a shutdown mode to save power when the receiver is inactive. The tiny package footprint of the LXK62E, requiring only a few external components. The block diagram of the LXK62E is shown in Figure and the device package and pin out for the 6-pin Dual Flat No-Lead (DFN) are shown in Figure 2. V_ENABLE VCC Bias RF_IN 62E LNA RF_OUT Figure. LXK62E Functional Block Diagram

2 Creotech Preliminary DATA SHEET LXK62E Figure 2. LXK62E Pinout - 6 Pin.6x.6 DFN (Top View) Table. Names and Descriptions Pin Name Description V_ENABLE Enable control input 2, 5 GND Ground 3 RF_IN LNA input 4 RF_OUT LNA output 6 VCC Supply voltage for LNA GND GND PAD Technical Description The LXK62E is internal matching IC, just requiring only a simple bypass circuit on pin 6 (VCC) and few input components for fine turning. An external resistor on the V_ENABLE signal (pin) allows a wide range of control voltages to be used. Shutdown mode is achieved by switching the V_ENABLE signal to V. Package and Handling Information Since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. Instructions on the shipping container label regarding Exposure to moisture after the container seal is broken must be followed. Otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. The LXK62E is rated to Moisture Sensitivity Level (MSL) at 26. It can be used for lead or lead-free soldering. Electrical and Mechanical Specifications Signal pin assignments and functional pin descriptions are described in Table. The absolute maximum ratings of the LXK62E are provided in Table 2. The electrical specifications are provided in Table 3 and the recommended operating conditions are specified in Table 4. Table 5 provides the control logic for the LXK62E. Performance characteristics for the LXK62E are illustrated in Chart.~6. An application schematic diagram for the LXK62E is shown in Figure 3 and application Circuit PCB Layout is shown in Figure 4. 2

3 Creotech Preliminary DATA SHEET LXK62E Table 2. Absolute Maximum Ratings Parameter Rating Units Max Device Voltage(VD) 5.5 V Max RF Input Power +5 dbm Storage Temperature -4 to 25 Operating Temperature -4 to 75 Junction Temperature 5 Thermal Resistance 5 /W Electrostatic Discharge, Human Body Model V Table 3. Typical Electrical Specifications (.8GHz-2.7GHz) (Test Conditions: VDD=3.3V, ID=2mA, V_ENABLE=3.3V Typ., OIP3 Tone Spacing=MHz, Pout per tone=dbm, TA=25, ZS=ZL=5Ω) Parameter Specification Min. Typ. Max. Units.9GHz 6 db Small Signal Gain 2.4GHz 4 db 2.6GHz 4 db Output PdB (In-band) 5 dbm OIP3 28 dbm.9ghz -9 db Input Return Loss 2.4GHz - db 2.6GHz - db.9ghz -8 db Output Return Loss 2.4GHz - db 2.6GHz - db Reverse Isolation 22 db.9ghz.5 db Noise Figure 2.4GHz. db 2.6GHz.2 db Device Operating Voltage +3.3 V Device Operating Current V_ENABLE=3.3V V_ENABLE=V 2 < ma ua V_ENABLE current ma 3

4 S2(dB) S22(dB) S (db) S2 (db) Creotech Preliminary DATA SHEET LXK62E Table 4. Recommended Operating Conditions Symbol Parameter Min. Typ. Max. Units f Operating frequency 8 27 MHz VCC Supply voltage for LNA V V_ENABLE Enable voltage V High low TA Operating temperature Table 5. Mode Control Logic V_ENABLE Voltage (V) Description 3.3 LNA is enabled LNA is disabled Performance Charts (V DD = 3.3 V, I D = 2 ma, T A = 25 C ) Typical.9GHz 5 ohm system: Chart. Input Return Loss vs Temperature Chart.2 Gain vs Temperature Chart.3 Reverse Isolation vs Temperature Chart.4 Output Return Loss vs Temperature

5 S2 (db) S22 (db) S (db) S2 (db) NF (db) Creotech Preliminary DATA SHEET LXK62E Chart.5 Noise Figure vs Frequency Temp 25 C Typical 2.4GHz 5 ohm system: Chart.6 Input Return Loss vs Temperature Chart.7 Gain vs Temperature Temp -4 Temp Frequency (GHz) Temp -4 Temp Frequency (GHz) Chart.8 Reverse Isolation vs Temperature Chart.9 Output Return Loss vs Temperature Temp -4 Temp Temp-4 Temp Frequency (GHz) 5

6 S2(dB) S22(dB) S(dB) S2(dB) NF (db) OIP3 (dbm) Creotech Preliminary DATA SHEET LXK62E Chart. Noise Figure vs Frequency Chart. OIP3 vs Frequency.3 Temp 25 o 3. Temp 25 o C Frequency (GHz) Frequency (GHz) Typical 2.6GHz 5 ohm system: Chart.2 Input Return Loss vs Temperature Chart.3 Gain vs Temperature Chart.4 Reverse Isolation vs Temperature Chart.5 Output Return Loss vs Temperature

7 NF (db) Creotech Preliminary DATA SHEET LXK62E Chart.6 Noise Figure vs Frequency Temp 25 C

8 Creotech Preliminary DATA SHEET LXK62E Application Circuit R L Control Input C3 V_ENABLE VCC 6 C C4 VCC 2 GND GND 5 L2 RF Input 3 RF_IN RF_OUT 4 RF Output C2 Figure 3. Application Circuit Schematic Evaluation PCB 25 Figure 4. Application Circuit PCB Layout Recommended Component Values for Key Application Frequencies Reference Designator Frequency (MHz) L.6nH.6nH.6nH L2 3.9nH.8nH.3nH R Ohm Ohm Ohm C 2pF 2pF 2pF C2.8pF.5pF.5pF C3,C4.uF.uF.uF 8

9 A A3 A e E D2 b D E2 L Creotech Preliminary DATA SHEET LXK62E Package Diagram Pin 2 XX Part Number Year Month PIN DOT BY MARKING TOP VIEW BOTTOM VIEW SIDE VIEW COMMON DIMENSIONS(MM) REF. MIN. NOM. MAX A A. -.5 A3.5 REF. D E D E L b e.5 BSC 9

10 Creotech Preliminary DATA SHEET LXK62E Ordering Information Part No. LXK62E Description Low-Noise Amplifier Document Change History Revision Date Notes. Mar. 6, 25 Created Copyright Creotech Company. All Rights Reserved. DS536. Information in this document is provided in connection with Creotech products or services. These materials, including the information contained herein, are provided by Creotech as a service to its customers and may be used for information purposes only by the customer. Creotech assumes no responsibility for errors or omissions in these materials or the information contained herein. Creotech may change its documentation, products, services, specifications or product descriptions at any time, without notice. Creotech makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. The material, products and information are provided as is without warranty of any kind, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merchantability, performance, quality or non-infringement of any intellectual property right. All such warranties are hereby expressly disclaimed. Creotech does not warrant the accuracy or completeness of the information, text, graphics or other items contained within these materials. Creotech should not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequential damages, including without limitation, loss revenues or lost profits that may result from the use of the materials or information, whether or not the recipient of materials has been advised of the possibility of such damage. Customers are responsible for their products and applications using Creotech products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Skyworks assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Creotech products outside of stated published specifications or parameters.