MA1078-2

MA1078-2 For DCS1800 - 20W Power Amplifier MA1078-2 2. Electrical Performances (Tc = +25°C, Vc = +24V, Vd = +10V, Vg = –6V, Zg = Zl = 50Ω) No. Items Frequency Output Power Output RF modulation spectrum ; from the carrier 100 KHz 200 KHz 250 KHz 400 KHz 600 KHz to < 1200 KHz 1200 KHz to < 1800 KHz 1800 KHz to < 6000 KHz < 6000 KHz = Spurious ; in-band out-band Harmonics 2fo 3fo 4fo Icq Pout = +43 dBm Symbol f Pout ––– Pout = +43 dBm (Pin control) ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– –60 –65 –70 ––– +0.5 –30 –33 –60 –70 –73 –75 –80 –36 –30 ––– ––– ––– 1.5 dB dB dB dB dB dB dB dB dBm dBm dBc dBc dBc A Condition Standard Min 1805 +43 Type ––– ––– Max 1880 ––– Unit MHz dBm DESCRIPTION The MA1078-2 is a 20W power amplifier designed for DCS 1800, which comprises 4 stages GaAs FET and 2 stages Si bipolar transistors, also RF power monitoring circuit. OUTLINE DRAWING 142 mm 136 +/– 0.8 mm 3 mm 1 2 3 MA1078-2 FEATURES s Specified +25/+10 Volt Chracteristics RF Output Power : +43 dBm (typ.) Harmonics : –65 dBc typ. s Small Size : 70 × 142 × 40 mm3 s 50 Ohm Input/Output Impedances 64.4 +/- 0.8 mm 70 mm 2.6 mm 4 HOLES φ 3.5 mm Vg(–6V:PIN#12) Vdet(PIN#13) GND(PIN#11) (out) APPLICATION s DCS 1800 (1805 ~ 1880 MHz) Base station RF IN 10 mm 25 PINs D-SUB 40 mm RF OUT 4 5 Vd(+10V:PIN#24) Vc(+24V:PIN#25) 6 Quiescent current Pin = OmW Amplifier Specifications (MA1078-2) 1. Maximum Ratings No. 1 2 3 4 5 6 Items Cas...