Very Low Distortion Attenuator Plastic Packaged PIN Diodes SMP1307 Series Features ■ Low Distortion Design ■ Frequency Range from HF to > 2 GHz ■ Designed for CATV AGC Applications ■ Designed for High Volume Wireless Applications Description The SMP1307 series of plastic packaged, surface mountable, low capacitance (0.3 pF) silicon PIN diodes are designed for use in attenuator applications from 5 MHz to beyond 2 GHz. The thick 175 µm I region of these PIN diodes makes them very attractive for use in very low distortion PI and TEE attenuators commonly used in TV distribution applications. The 1.5 µS typical carrier lifetime of these diodes results in resistance of 100 Ω maximum at 1 mA and 10 Ω maximum at 10 mA. Available in a selection of plastic packages, as a single diode in the small footprint SOD-323, and in a variety of configurations in the SOT-23. Also available in a SOT-5 (SMP1307-027) package as a four diode array designed for insertion in the commonly used 4 diode PI attenuator circuit. Absolute Maximum Ratings Characteristic Value Reverse Voltage (VR) 200 V Power Dissipation @ 25°C Lead Temperature (PD) 250 mW Storage Temperature (TST) -65°C to +150°C Operating Temperature (TOP) -65°C to +150°C ESD Human Body Model Class 1C Single Common Cathode Series Pair Single PI Marking: PJ1 Marking: PJ3 Marking: PJ2 SOT-23 SOT-23 SOT-23 SOD-323 SOT-5 ♦ SMP1307-001 ♦ SMP1307-004 ♦ SMP1307-005 ♦ SMP1307-011 ♦ SMP1307-027 LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH LS = 1.5 nH Marking: PJM ♦ Available through distribution. Electrical Specifications at 25°C Parameter Condition Typ. Max. Unit 10 µA 0.30 pF 100 Ω F = 100 MHz, I = 10 mA 15 Ω F = 100 MHz, I = 100 mA 3.0 Ω Reverse Current (IR) VR = 200 V Capacitance (CT) F = 1 MHz, V = 30 V Resistance (RS) Resistance (RS) F = 100 MHz, I = 1 mA Resistance (RS) Forward Voltage (VF) IF = 10 mA 0.85 V Carrier Lifetime (TI) IF = 10 mA 1.5 µS 175 µm I Region Width 75 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A 1 Very Low Distortion Attenuator Plastic Packaged PIN Diodes SMP1307 Series Typical Performance Data 100 Forward Current (mA) Series Resistance (Ω) 10000 1000 100 10 1 0.1 0.01 0.1 1 10 10 1 0.1 0.01 400 100 500 600 700 800 Forward Voltage (mV) Series Resistance vs. Current @ 100 MHz DC Characteristic 0.8 400 0.7 350 0.6 300 0.5 Conductance (µS) Capacitance (pF) Forward Current (mA) 1 MHZ 0.4 0.3 100 MHz 0.2 1 GHz 900 250 200 0V 150 10 V 100 40 V 50 0.1 0 0 0 1 2 5 10 20 50 100 0 500 1000 1500 Reverse Voltage (V) Frequency (MHz) Capacitance vs. Reverse Voltage Conductance vs. Frequency and Reverse Voltage Resistance vs. Temperature @ 100 MHz 2 1000 IF (mA) R -55°C Ω) (Ω R -15°C Ω) (Ω R +25°C Ω) (Ω R +65°C Ω) (Ω R +100°C Ω) (Ω 0.02 2386.0 2360.0 2546.0 2520.0 2440.0 0.10 572.0 598.0 632.0 633.0 639.0 0.30 203.0 219.0 236.0 239.0 242.0 1.00 66.1 71.2 79.3 83.6 85.4 10.00 9.1 10.0 10.9 12.2 12.9 20.00 5.6 6.0 6.6 7.4 7.8 100.00 2.2 2.4 2.6 3.0 3.2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A 2000 Very Low Distortion Attenuator Plastic Packaged PIN Diodes SMP1307 Series SMP1307-027 4 Diode PI Attenuator The SMP1307-027 employs 4 PIN diode junctions in a 5-lead SOT package. It is configured for ease of insertion in the PI attenuator circuit commonly used for broadband TV distribution systems, covering a frequency range from 5 MHz to beyond 1 GHz. A broadband attenuator was designed using the SMP1307-027 showing good performance to 2 GHz. The attenuator was evaluated with a 50 Ω source and load impedance. The following figure shows the circuit diagram and measured performance. 3 4 C6 10,000 pF R2 1k C1 10,000 pF D1 RF Input R1 1k 5 VTUNE 0–20 V RF Output R6 560 D4 R3 1k 1 C5 10,000 pF D3 D2 C2 10,000 pF 2 R4 1k C4 10,000 pF R5 560 C3 10,000 pF VREF 5V D1–D4 SMP1307-027 A 4 diode PI attenuator utilizing individual SMP1307-011 PIN diodes is described in the “A Wideband General Purpose PIN Diode Attenuator” Application Note. 0 VCTL = 20 V VCTL = 15 V Attenuation (dB) -10 VCTL = 10 V VCTL = 5 V -20 VCTL = 0 V -30 -40 -50 0 0.5 1.0 1.5 2.0 Frequency (GHz) SMP1307-027 Attenuation vs. Frequency Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A 3 Very Low Distortion Attenuator Plastic Packaged PIN Diodes SOT-23 SMP1307 Series SOT-5 0.110 (2.80 mm) MIN. 0.120 (3.04 mm) MAX. 0.012 (0.30 mm) MIN. 0.020 (0.50 mm) MAX. 3 0.083 (2.10 mm) MIN. 0.104 (2.64 mm) MAX. 0.047 (1.20 mm) MIN. 0.055 (1.40 mm) MAX. 0.014 (0.36 mm) MIN. 0.020 (0.51 mm) MAX. 4 2 1 0.037 (0.94 mm) REF. 0.037 (0.95 mm) REF. 0.020 (0.51 mm) REF. 0.076 (1.92 mm) REF. 1 2 3 0.060 (1.52 mm) MIN. 0.069 (1.75 mm) MAX. 0.102 (2.59 mm) MIN. 0.118 (3.00 mm) MAX. 0.037 (0.94 mm) REF. 0.035 (0.89 mm) MIN. 0.057 (1.49 mm) MAX. 0.110 (2.79 mm) MIN. 0.118 (3.00 mm) MAX. 0.035 (0.89 mm) MIN. 0.044 (1.12 mm) MAX. 0.003 (0.080 mm) MIN. 0.008 (0.20 mm) MAX. 8˚ MAX. 0.0005 (0.01 mm) MIN. 0.004 (0.10 mm) MAX. 0.022 (0.55 mm) REF. 5 10˚ MAX. 0.035 (0.89 mm) MIN. 0.051 (1.30 mm) MAX. 0.134 (3.4 mm) 0.004 (0.10 mm) MIN. 0.024 (0.61 mm) MAX. 0.000 (0.00 mm) MIN. 0.006 (0.15 mm) MAX. SOD-323 0.090 (2.30 mm) MIN. 0.108 (2.74 mm) MAX. 0.045 (1.15 mm) MIN. 0.053 (1.35 mm) MAX. 1 0.010 (0.25 mm) MIN. 0.016 (0.40 mm) MAX. 2 CATHODE INDICATOR 0.063 (1.60 mm) MIN. 0.071 (1.80 mm) MAX. 0.008 (0.20 mm) NOM. 0.006 (0.15 mm) TYP. 0.050 (1.25 mm) MAX. 0.004 (0.10 mm) MAX. 0.010 (0.25 mm) MIN. 4 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 1/01A