TQM879028 0.6-4 GHz 1/2 W Digital Variable Gain Amplifier Product Overview The TQM879028 is a digital variable gain amplifier (DVGA) featuring high linearity over the entire gain control range. This amplifier module integrates a gain block, a digital-step attenuator (DSA), and a high linearity Watt amplifier into a compact 4x4 mm module. The internal 6-bit DSA provides a 31.5dB gain control range in 0.5dB steps, and TM is controlled with a serial periphery interface (SPI ). The 24 Pin 4x4 mm leadless SMT Package individual stages are accessible to external ports to allow for optimization of the last stage amplifier for use in any 3GPP telecom band and also allowing other functional blocks to be added in-between the stages. Key Features The TQM879028 features variable gain from 0.5dB to 600-4000 MHz 32dB at 2.14 GHz, +44dBm output IP3, and +27.5dBm 32 dB Maximum Gain at 2140 MHz P1dB while only consuming 230mA current from a 5V 31.5 dB Gain Range in 0.5 dB Steps supply. The module is available in a compact 24-pin 4x4 +44 dBm Output IP3 mm leadless SMT package. +27.5 dBm Output P1dB 1.6 dB Noise Figure 3-wire SPI Control Programming Tunable for any 3GPP telecom band Functional Block Diagram Applications Wireless Infrastructure Pin 1 Marking Small cell BTS Pre-5G / 5G Massive MIMO systems TDD-based architectures NC 1 18 NC NC 2 17 NC DSA In 3 DSA 16 Amp2 Out / Vcc NC 4 15 LE 6-BIT Amp1 Out / Vcc 5 14 DATA SPI NC 6 13 CLK Ordering Information Part No. Description Backside Paddle RF/DC GND TQM879028TR13 2500 pieces on a 13 ree l TQM879028-PCB2140 2140 MHz Evaluation Board Top View Datasheet, January 5, 2018 Subject to change without notice 1 of 23 www.qorvo.com NC 7 24 NC Amp1 In 8 23 DSA Out NC 9 22 NC SOD 10 21 NC NC 11 20 Amp2 In Vdd 12 19 NC TQM879028 0.6-4 GHz 1/2 W Digital Variable Gain Amplifier Absolute Maximum Ratings Recommended Operating Conditions Parameter Rating Parameter Min Typ Max Units Storage Temperature -65 to 150C Supply Voltage (VDD) 4.75 5.0 5.25 V T -40 +105 C RF Input Power, CW, 50, T=25C +12 dBm CASE 6 Supply Voltage (V ) +5.5 V Tj for >10 hours MTTF +170 C DD Electrical specifications are measured at specified test conditions. Digital Input Voltage V + 0.5 V DD Specifications are not guaranteed over all recommended operating Operation of this device outside the parameter ranges given above may conditions. cause permanent damage. Electrical Specifications Test conditions unless otherwise noted: VDD =+5V, Temp= +25C, matched 2140 MHz reference circuit, max. gain setting Parameter Conditions Min Typ Max Units Operational Frequency Range 600 4000 MHz Test Frequency 2140 MHz Gain 29 32 36 dB Gain Control Range 0.5 dB Step Size 31.5 dB Accuracy Error (0.3+5% of Attenuation setting) dB Input Return Loss 20 dB Output Return Loss 14 dB Output P1dB +26.4 +27.5 dBm Output IP3 Pout = +11 dBm/tone, f = 1 MHz +41 +44 dBm Noise Figure 1.5 dB Total Supply Current 175 230 255 mA Amp 1 Current 86 mA Amp 2 Current 142 mA DSA Current 2 mA Thermal Resistance, jc Junction to case 26 C/W Datasheet, January 5, 2018 Subject to change without notice 2 of 23 www.qorvo.com