580 Pleasant St. Watertown, MA 02472 PH: (617) 926-0404 FAX: (617) 924-1235 UM2300 SERIES Features • • • • • PIN DIODE SWITCH LF band (100 KHz) PIN Long Lifetime (80 µs typ.) High Power (1 KW CW) •High Isolation (35 dB) Low Loss (0.2 dB) •Very Low Distortion (IP3 = > 60 dBm) Voltage Ratings to 1000 V Description TYPICAL CAPACITANCE vs REVERSE VOLTAGE UM2300 Series PIN diodes are designed for transmit / receive switch and attenuator application in LF band ( 100 KHz ) and above. As series configured switches, these long lifetime (80 µS typ) diodes can control up to 2.5 KW CW in a 50 ohm system. In MF band, insertion loss is less than 0.2 dB and isolation is greater than 35 dB (‘off ’state). 130 120 100 KHz 110 100 Ct (pF) 90 200 KHz 80 70 400 KHz 60 50 40 1 MHz 30 The UM2300 series offers the lowest distortion performance in both transmit & receive modes. Less than 10 mA forward bias is required to obtain an IP3 of 60 dBm at 150 KHz with 1 watt per tone. The forward biased resistance/reactance vs. frequency characteristics are flat down to 10 KHz. Capacitance vs. reverse bias voltage characteristic is flat down to 1 MHz. 20 10 0 Thermal Resistance MSCOXXXA 12-14-98 Typ. 0.3 15 60 50 80 60 20 40 60 80 100 120 140 160 180 200 Vr (VOLTS) Voltage Ratings (25°C) Reverse Voltage ( VR ) @ IR = 10 µA 100 200 400 600 800 1000 Electrical Specifications (25°C) Min. 4 MHz 0 In attenuator configurations, the UM2300 produces extremely low distortion at low values of attenuator control current, & very low insertion loss ( 0.2 dB) in the ‘0 dB ’attenuator state. Test Diode Resistance RS Capacitance CT Reverse Current IR Carrier Lifetime τ IP3 2 MHz Max. 0.4 20 10 Units Ω pF µA µs dBm 1.0 °C / W DEVICE VOLTS............ UM2301 VOLTS............ UM2302 VOLTS............ UM2304 VOLTS............ UM2306 VOLTS............ UM2308 VOLTS............ UM2310 Conditions F1 = 1 MHz, 100 mA F2 = 1 MHz, 100 V @ Rated Voltage If = 10 mA / 100 V 2 WATT total, If = 25 mA F1 = 0.999 MHz, F2 = 1.001 MHz 1.0 WATT/ tone 25°C Stud Temperature DSW UM2300 <->(34989) UM2300 SERIES TYPICAL IR vs VR TYPICAL I-V CURVE 10 2 10 -2 150 oC 101 10 150 oC 125 oC 100 oC 75 oC 50 oC 25 oC 0 -1 10-2 10 125 oC -3 100 oC IR (A) (MEAN) If [AMPERES] 10 10 -3 10 -4 75 oC 50 oC 10 10 -5 25 oC -6 10-4 10 10 -5 10-6 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 10 -7 -8 0 100 200 300 400 500 600 700 800 900 1000 VR (Volts) Vf [VOLTS] TYPICAL Rp vs REVERSE VOLTAGE TYPICAL RS vs FORWARD BIAS CURRENT 9 10 1000 10KHz 20KHz 108 40KHz 100 Rp (OHMS) Rs (Ohms) 107 10 100KHz 200KHz 6 10 400KHz 1MHz 5 10 2MHz 4MHz 1 104 .1 .01 .1 MSCOXXXA 12-14-98 1 If (mA) 10 100 10MHz 103 0 10 1 10 REVERSE VOLTAGE (VOLTS) 2 10 DSW UM2300 <->(34989) UM2300 SERIES TYPICAL TCVf vs If TYPICAL THERMAL IMPEDANCE 0.0 DELTA 125 oC -0.5 No Heatsink 1 TCVf [mV/oC] THERMAL IMPEDANCE - (C/W) 10 With Heatsink -1.0 -1.5 -2.0 .1 -2.5 -3.0 .01 1 10 100 Pt - PULSE TIME - (ms) -3 10 1000 -2 10 -1 10 If [AMPERES] 0 10 1 10 TYPICAL POWER LEVEL vs FORWARD BIAS CURRENT 40 70 f1 = F +/- 1 KHz 65 500KHz 250KHz 150KHz 30 60 25 55 20 IP3 (dBm) POWER LEVEL/TONE (dBm) f2 = F +/- 1 KHz 35 50 TAU = 0.1 ms 15 1 2 3 4 5 6 7 8 10 45 If NEEDED TO OBTAIN AN IM3 OF - 60 dBc (mA) MSCOXXXA 12-14-98 DSW UM2300 <->(34989) UM2300 SERIES UM2300 MSCOXXXA 12-14-98 DSW UM2300 <->(34989) UM2300 SERIES UM2300S MSCOXXXA 12-14-98 DSW UM2300 <->(34989)