FMM5522GJ (3W) FMM5048GJ (4W) New products Power Amplifier MMIC Models for 14 GHz-band VSAT FMM5522GJ(3W) / FMM5048GJ(4W) FUJITSU QUANTUM DEVICES LIMITED has developed a pair of power amplifiers (3W and 4W) for 14 GHz-band VSAT. The higher output, reduced size, and lower prices of these new models make them ideal as power or driver amplifiers for VSAT systems. Product Description With the rapid growth of the Internet, much attention has been focused on the 14GHz-band VSAT system. VSAT S mall A perture T erminal" a very small stands for "V ery satellite-based communications ground station. As the VSAT system is equipped with antennae with much smaller apertures, it is much better suited for consumer use. As the manufacturers are targeting a consumer market in the development of the VSAT system, they require an ODU D oor Unit) with a compacter design, higher output, (O ut reduced distortion characteristics, and a lower cost. To construct such a system, a compact, inexpensive amplifying unit with high power output will be required. FUJITSU has already responded to this demand by developing the compact Monolithic I ntegrated 3W and 4W MMIC (M icrowave Circuit) modules featuring combined MMIC and hybrid circuits. FMM5522GJ (3W) Performance characteristics at frequency f14.0 to 14.5GHz: Small-signal gain GL23.0dB 1dB gain compression power P1dB33.5dBm or more Saturation power Psat35.5dBm FMM5048GJ (4W) Performance characteristics at frequency f=13.75 to 14.5GHz: Small-signal gain GL23.0dB 1dB gain compression power P1dB35.0dBm or more Saturation power Psat36.5dBm power added efficiencyadd20% or more Photo 1 External View Product Features Higher output, Higher gain, and Higher efficiency Thanks to the hybrid design of the combined MMIC configuration in the driver stage, FET in the power stage, and optimal circuits, these products perform better than ever (increased output, gain and efficiency) and come in even smaller packages. 2002 No.1 FIND Vol.20 53 FMM5522GJ (3W) FMM5048GJ (4W) New products These device frequency characteristics are compatible with the satellite communications system (SATCOM). The drain voltage and gate voltage are the same for both models: drain voltage V DD10V and gate voltage VGG-5V (Class A operation). Higher reliability The adoption of hermetic package and Au gate array chip assures higher reliability. Compact size Size: 15mmx12mm Height: 3.5mm Figure 1 Dimensional Outline 4-R1.20.15 3.5 (Max.) 1.30.15 0.3 3.8 7 110.15 15 3 4 2 5 1 6 6-0.08 7 INDEX 0.9 60.15 1 (Min.) 120.15 1VDD 2RFin 3VGG 4VGG 5RFout 6VDD 7GND Body Unitmm Table 1 Principal Characteristics FMM5522GJ Model Parameter Frequency range Symbol Test Condition f Specifications Max. Min. Typ. Max. 14.0 14.5 13.75 14.5 35.0 36.0 23.0 26.0 33.5 35.0 Gain at 1 dB gain compression G1dB 23.0 26.0 Gain flatness G Input VSWR VSWR Output VSWR VSWR o Drain current Gate current VDD10V VGG-5.0V dB 1.5 6.0 8.0 9.5 11.0 2.0 2.1 2.5 A 25.0 6.0 12.0 mA 9.5 11.0 IDD 1.75 IGG 22.0 2002 dBm 8.0 GHz 6.0 No.1 Unit Typ. P1dB FIND Vol.20 Specifications Min. Power at 1 dB gain compression 54 FMM5048GJ dB FMM5522GJ (3W) FMM5048GJ (4W) New products Fig.1 shows the dimensional outlines. The same package design is used for both the FMM5522GJ and FMM5048GJ. Characteristics Table 1 summarizes the principal characteristics of the FMM5522GJ and FMM5048GJ. Fig.2,3 and Fig.4,5 summarize the frequency characteristics and I/O characteristics for the FMM5522GJ and FMM5048GJ, respectively. The FMM5048GJ provides broader frequency characteristics of f13.75 to 14.5GHz with P1dB35.0dBm or more. Figure 2 Frequency Characteristics (FMM5522GJ) Figure 4 Frequency Characteristics (FMM5048GJ) V DD10 VI DD2.1 AV GG-5.0 V V DD10 VI DD1.75 AV GG-5.0 V 38 38 1 dB comp. 1 dB comp. Pin7 dBm Pin5 dBm 34 Pin3 dBm 32 Pin1 dBm 30 28 14.1 14.2 14.3 14.4 14.5 Pin4.0 dBm 32 Pin2.0 dBm 30 Pin0 dBm 26 13.5 14.6 13.75 14 Figure 3 I/O Characteristics (FMM5522GJ) 37 70 Pout 60 34 50 33 40 32 31 30 add 20 29 60 36 55 50 Pout 34 45 33 40 32 35 31 30 30 25 29 20 28 10 27 -2 0 2 4 Input PowerdBm 6 8 0 15 add 27 28 26 -4 37 35 Output PowerdBm Output PowerdBm 36 30 14.75 V DD10 VI DD2.1 AV GG-5.0 Vf14.25 GHz V DD10 VI DD1.75 AV GG-5.0 Vf14.25 GHz 80 35 14.5 Figure 5 I/O Characteristics (FMM5048GJ) add 38 14.25 FrequencyGHz FrequencyGHz 10 26 25 -2 add 14 Pin7.0 dBm Pin6.0 dBm 34 28 Pin-3 dBm 26 13.9 Pin10 dBm 36 Output PowerdBm Output PowerdBm 36 5 0 2 4 6 8 10 12 0 Input PowerdBm 2002 No.1 FIND Vol.20 55