24–35 GHz GaAs MMIC High Power SPDT Reflective PIN Switch AP640R7-00 0.113 ■ Broad Bandwidth ■ Low Loss, < 1.5 dB 2.078 Chip Outline Features 1.100 ■ High Isolation, > 28 dB 0.988 ■ Return Loss, < -12 dB ■ Fast Switching Speed, < 4 ns 0.398 ■ High Power Handling, 40 dBm Peak, 36 dBm CW Alpha’s high power, single pole, double throw PIN diode switch is a robust, high performance switch. It is ideal for low loss, high isolation applications, particularly where broad bandwidths and high power handling is required. The chip uses Alpha’s proven PIN diode technology, and is based upon MBE layers for the highest uniformity and repeatability. The diodes employ surface passivation to ensure a rugged, reliable part with through-substrate via holes and gold-based backside metallization to facilitate an epoxy die attach process. The GaAs MMIC employs a specialized high power PIN diode in each arm and an on-chip bias network. Chips are measured on a 100% basis at 24, 28, 31 and 35 GHz for insertion loss, isolation, input and output return losses, and also at DC for diode breakdown voltage and turn on voltage. 2.190 Description 1.095 0.000 0.000 Dimensions indicated in mm. All pads are ≥ 0.07 mm wide. Chip thickness = 0.1 mm. Absolute Maximum Ratings Characteristic Value Operating Temperature -55°C to +125°C Storage Temperature -65°C to +150°C DC Reverse Bias -100 V (-20 mA) DC Forward Bias +2.6 V (100 mA) PIN 15 W Electrical Specifications at 25°C Parameter Max. 1.2 1.5 Condition IL F = 24, 28, 31, 35 GHz ISO F = 24, 28, 31, 35 GHz Input Return Loss RLI F = 24, 28, 31, 35 GHz 16 12 Output Return Loss (Insertion State) RLO F = 24, 28, 31, 35 GHz 17 14 dB Leakage Current IDD V = -50 V 2 20 µA Insertion Loss Isolation Switching Speed1 Output Power at 1 dB Compression1 P1 dB F = 35 GHz Min. Typ.2 Symbol 28 30 Unit dB dB dB 4 ns 36 dBm 1. Not measured on a 100% basis. 2. Typical represents the median parameter value across the specified frequency range for the median chip. Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 2/00A 1 24–35 GHz GaAs MMIC High Power SPDT Reflective PIN Switch AP640R7-00 Typical Performance Data -1 Input Return Loss Output Return Loss -20 -2 -30 -3 Isolation -40 -4 15 20 25 30 35 Insertion Loss -10 -1 Input Return Loss Output Return Loss -20 -2 -30 -3 Isolation -40 40 -4 -26.0 -5.0 -3.5 -1.0 0.0 Frequency (GHz) Reverse Bias Voltage (V) Performance vs. Frequency Bias Conditions: IF = 20 mA, VR = -3.5 V Performance vs. DC Bias F = 28 GHz, Forward Current = 20 mA 0 -10 Truth Table 0 Insertion Loss Input Return Loss -1 Output Return Loss -20 -2 Isolation -30 -3 Insertion Loss (dB) Return Loss & Isolation (dB) 0 B1 B2 J1–J2 +20 mA -5 V Insertion Loss -5 V +20 mA Isolation Circuit Schematic B1 -40 Insertion Loss (dB) Insertion Loss -10 0 Return Loss & Isolation (dB) 0 Insertion Loss (dB) Return Loss & Isolation (dB) 0 B2 -4 1 2 5 10 20 40 Forward Current (mA) Performance vs. DC Bias F = 28 GHz, Reverse Voltage = -3.5 V J3 J2 Bias Arrangement “ON ARM” -5 V (~ 2 µA) J1 “OFF ARM” +20 mA (~ 2.50 V) RESISTOR RESISTOR B1 B2 J2 J3 J1 2 Alpha Industries, Inc. [781] 935-5150 • Fax [617] 824-4579 • Email [email protected] • www.alphaind.com Specifications subject to change without notice. 2/00A