RFDA2125 rfmd.com Digital Controlled Variable Gain Amplifier 400MHz to 2700MHz, 6-Bit 0.5dB LSB Control Package Style: MCM 32-Pin, 5.2mm x 5.2mm Features Frequency Range 400MHz to 2700MHz 6-Bit Digital Step Attenuator SPI CLK 1 24 GND SPI Serial Control Programming SPI PUP 2 23 GND Max Gain = 29.5dB Typical at 3 22 GND AMP2 GND 2140MHz Vamp1 4 21 Amp2 IN Gain Control Range = 31.5dB 5 20 GND GND (0.5dB Step Size) GND 6 19 GND OIP3/P1dB = +44/25dBm Typical at 2140MHz RF IN 7 DSA 18 GND Single +5V Supply GND 8 17 GND Small 32-Pin, 5.2mm x 5.2mm, MCM Power-up Programming Functional Block Diagram Applications Product Description Cellular, 3G Infrastructure RFMDs RFDA2125 is a digital controlled variable gain amplifier for WiBro, WiMax, LTE broadband applications with external matching to allow for Microwave Radio configurations in different bands with a single module. It features exceptional linearity with noise figure less than 5.0dB in its maximum High Linearity Power Control gain state. The gain of the 6-bit digital step attenuator is programmed with a serial mode control interface (SPI). The RFDA2125 is packaged in a small 5.2mm x 5.2mm leadless laminate MCM, which contains plated through thermal vias for ultra-low thermal resistance. Ordering Information RFDA2125SR 7 Sample reel with 100 pieces RFDA2125SQ Sample bag with 25 pieces RFDA2125TR13 13 Reel with 2500 pieces RFDA2125PCK-410 400MHz to 2700MHz PCBA with 5-piece sample bag RF MICRO DEVICES, RFMD, Optimum Technology Matching, Enabling Wireless Connectivity, PowerStar, POLARIS TOTAL RADIO and UltimateBlue are trademarks of RFMD, LLC. BLUETOOTH is a trademark owned by Bluetooth SIG, Inc., U.S.A. and licensed for use by RFMD. All other trade names, trademarks and registered trademarks are the property of their respective owners. 2006, RF Micro Devices, Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical DS130326 1 of 26 support, contact RFMD at (+1) 336-678-5570 or sales-support rfmd.com. GND 9 32 SPI DATA AMP1 10 31 GND SPI LE 11 30 GND Vdsa SPI CONTROL GND 12 29 GND GND 13 28 Vref 14 27 GND Vbias GND 15 26 GND DSA OUT 16 25 RF OUT RFDA2125 rfmd.com Absolute Maximum Ratings Parameter Rating Unit Caution ESD sensitive device. Supply Voltage +5.5 VDC Exceeding any one or a combination of the Absolute Maximum Rating conditions may DC Supply Current 300 mA cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not Power Dissipation 1.6 W implied. Max RF Input Power for 50 Output RoHS status based on EUDirective2002/95/EC (at time of this document revision). 24 dBm Load The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. RFM) for its use, nor for any -40 to +85 C Operating Temperature (TCASE) infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and Storage Temperature -40 to +150 C specifications at any time without prior notice. Junction Temperature 160 C ESD Rating (HBM) 1000 (Class 1C) V Moisture Sensitivity Level MSL3 Note: Operation of this device beyond any one of these limits may cause permanent damage. MTTF = 1E6 hours at 160C junction temperature. Specification Parameter Unit Condition Min. Typ. Max. Temperature=25C, V = 5V, standard CC Overall application circuit Gain Control Range 31.5 dB Control Interface 6 bit SPI interface Setting Time 250 ns TON, TOFF (10%/90% RF) Impedance 50 Total Supply Voltage 4.75 5.0 5.25 V Total Supply Current 180 mA Thermal Resistance 60.8 C/W Junction to backside of device Step Accuracy +/- (0.2+5% attenuation setting) dB Temperature=25C, V = 5V, standard CC 728MHz to 746MHz application circuit Max Gain 37 dB P1dB 26 dBm Max gain Output IP3 44 dBm P =10dBm/tone, 1 MHz spacing, Max gain OUT WCDMA TM1 64DPCH 1C, Output power = ACPR -67 dBc 13dBm Gain Flatness 0.1 dB Noise Figure 3.9 dB Max gain Input Return Loss 15 dB Output Return Loss 11 dB 7628 Thorndike Road, Greensboro, NC 27409-9421 For sales or technical 2 of 26 DS130326 support, contact RFMD at (+1) 336-678-5570 or sales-support rfmd.com.