LMX2119

LMX2119 NSC | Alldatasheet

Document overview

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Technical content

Features

Y Single a3V supply operation Y Class A bias; l30% power added efficiency Y 24.5 dB power gain; a26.5 dBm output power Y 50X input/output impedance Y 350 mA current consumption at a3.6V

Applications

Y Digital European Cordless Telecommunications (DECT) Y Portable wireless communications (PCS/PCN, cordless) Y Wireless local area networks (WLANs) Y Other wireless communications systems Functional Block Diagram TL/W/12686–1 This data sheet contains the design specifications for product development. Specifications may change in any manner without notice.

LMX2119 Connection Diagram Small Outline Package (SOP) TL/W/12686–2 Top View Order Number LMX2119M See NS Package Number M16A Pin Description Pin No. Pin Name I/O Description 1 N/C No Connect. 2 aVDD1 Positive supply voltage. V DD1 must equal V DD2. Decoupling capacitors should be placed as close to the pin as possible. 3 GND Ground. 4 GND Ground. 5 RF In I RF input to the power amplifier. 6 GND Ground. 7 GND Ground. 8 N/C No Connect. 9 N/C No Connect. 10 GND Ground. 11 GND Ground. 12 RF Out O Power amplifier’s RF output. 13 GND Ground. 14 GND Ground. 15 aVDD2 Positive supply voltage. V DD2 must equal V DD1. Decoupling capacitors should be placed as close to the pin as possible. 16 N/C No Connect. http:/ /www.national.com 2

Supply Voltage (V DD) 5.5V RF Input Power (P IN)6 m W Storage Temperature (T STG) b40§Ct o a150§C ESD Rating (Note) k 2 keV Note: This device is a high performance RF integrated circuit with an ESD Rating k 2 keV, and is ESD sensitive. Handling and assembly of this device should only be done at ESD workstations. Recommended Operating Conditions Min Typ Max Units Supply Voltage, V DD1eVDD2 3.0 3.6 4.6 V Operating Temperature (T A) b25 a65 §C RF Input Power, P IN 0 a2 a4 dBm

Electrical Characteristics

(The following specifications are guaranteed for V DD1 e VDD2 e 3.6V, T A e 25§C, 50 X system unless otherwise specified.) Symbol Parameter Conditions Min Value Max UnitTyp Frequency Range 1880 1900 MHz Isolation PA off (V DD1 e VDD2 e 0V) 40 dB Frequency Dependency P IN e 1.0 mW–2.5 mW 0.2 0.5 dB IDD Current Consumption P OUT e 450 mW, P INe 1.6 mW 350 420 mA Input VSWR, PA On P OUT e 450 mW, P IN e 1.6 mW 1.6:1 2.0:1 Input VSWR, PA Off V DD1 e VDD2 e 0V, P IN e 1.6 mW 1.4:1 2.0:1 Load Mismatch (Note 1) V DD1 e VDD2 e 4.6V, VSWR e 10:1, P IN e 6 mW No Degradation in Output Power Stability (Note 2) P IN e 0–3 mW, V DD1,2 e 0–4.6V, All Non-Harmonically Related Outputs 0m W k POUT k 450 mW, More Than 60 dB Below Desired Signal Load VSWR e 10:1 Note 1: The device is adjusted to provide maximum load power into a 50 X load under stress conditions specified by adjusting V DD1. The device is switched off and a 10:1 load replaces the 50 X load. The device is switched on and the phase of the 10:1 load is varied through 360 electrical degrees during a 60 second test period. The device is switched off and the load is restored to 50 X. When the device is switched on, no change in load power is permitted. The pre and post load power measurements are recorded afte r a 5 minute stabilization period. This parameter is not tested in production but is guaranteed by design and characteriza- tion. Note 2: The device is adjusted to provide 400 mW of load power into a 50 X load by changing and recording the value of the supply voltage. The device is switched off and a 10:1 load replaces the 50 X load. The device is switched on and the phase of the 10:1 load is varied through 360 electrical degrees during a 60 second test period. The value of V DD1 e VDD2 is adjusted from the initial value to a lower value greater than 0V. The phase of the 10:1 load is varied through 360 electrical degrees during a 60 second test period. For any value of the supply voltage between 0V and the initial setting, the non-harmonically related output signals shall be as specified herein for any electrical phase. This parameter is not tested in production but is guaranteed by design and characterization. http:/ /www.national.com3

Typical Application Block Diagram TL/W/12686–3 Typical Performance Characteristics Output Power and Supply Current vs Input Power TL/W/12686–4 Output Power and Supply Current vs Frequency TL/W/12686–5 Input VSWR vs Frequency TL/W/12686–6 Power Ramping Characteristic (See Application Circuit) TL/W/12686–7 http:/ /www.national.com 4

Typical Performance Characteristics (Continued) Output Power and Supply Current vs Supply Voltage TL/W/12686–8 Power Amplifier Harmonics TL/W/12686–9 Output Power and Supply Current vs Frequency for T A eb 40§C TL/W/12686–10 Output Power and Supply Current vs Frequency for T A ea 75§C TL/W/12686–11 Output Power and Supply Current vs Temperature TL/W/12686–12 Maximum Operating Temperature Chart (50% Duty Cycle) TL/W/12686–13 http:/ /www.national.com5

LMX2119 1.9 GHz Power Amplifier Physical Dimensions inches (millimeters) unless otherwise noted JEDEC 16-Lead (0.150 × Wide) Small Outline Molded Package (M) Order Number LMX2119M For Tape and Reel (2500 Units per Reel) Order Number LMX2119MX LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or 2. A critical component is any component of a life systems which, (a) are intended for surgical implant support device or system whose failure to perform can into the body, or (b) support or sustain life, and whose be reasonably expected to cause the failure of the life failure to perform, when properly used in accordance support device or system, or to affect its safety or with instructions for use provided in the labeling, can effectiveness. be reasonably expected to result in a significant injury to the user. National Semiconductor National Semiconductor National Semiconductor National Semiconductor Corporation Europe Southeast Asia Japan Ltd. Fax: a49 (0) 180-530 85 86 Fax: (852) 2376 3901 Tel: 81-3-5620-7561Americas Email: europe.support @ nsc.com Email: sea.support @ nsc.com Fax: 81-3-5620-6179Tel: 1(800) 272-9959 Deutsch Tel: a49 (0) 180-530 85 85Fax: 1(800) 737-7018 English Tel: a49 (0) 180-532 78 32Email: support @ nsc.com Fran3ais Tel: a49 (0) 180-532 93 58 Italiano Tel: a49 (0) 180-534 16 80http:/ /www.national.com National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.