GaAs IC 4 Bit Digital Attenuator With Driver 1 dB LSB DC–2 GHz AK802D4-24 Features SOIC-14 ■ Attenuation in 1 dB Steps to 15 dB PIN 14 ■ Low Cost SOIC-14 Plastic Package ■ Low DC Current < 16 mA Total ■ Integral Driver +5 V, -5.6 V Supply Voltages 0.050 (1.27 mm) BSC 0.050 (1.27 mm) 0.016 (0.40 mm) 0.244 (6.20 mm) 0.228 (5.80 mm) 0.158 (4.01 mm) 0.150 (3.81 mm) PIN 1 INDICATOR Description 0.020 (0.51 mm) 0.013 (0.33 mm) PIN 1 The AK802D4-24 is an IC FET digital attenuator consisting of four monolithic attenuators with an LSB of 1 dB and a total attenuation of 15 dB with all attenuators connected. The device has integral drivers for each bit requiring less than 4 mA per bit. DC supply voltages of +5 and -5.6 V are required. The attenuator is packaged in a 14 lead plastic SOIC. 0.068 (1.73 mm) MAX. 0.016 MAX. (0.41 mm) x 45˚ CHAMFER 0.049 (1.24 mm) 0.016 (0.41 mm) 8˚ MAX. 0.344 (8.75 mm) 0.337 (8.55 mm) 0.010 (0.25 mm) 0.0098 (0.25 mm) 0.004 (0.10 mm) 0.0075 (0.19 mm) 0.158 (4.00 mm) 0.150 (3.80 mm) Electrical Specifications at 25°C (+5 V, -5.6 V) Parameter1 Insertion Frequency2 Loss3 Min. DC–0.5 GHz DC–1.0 GHz DC–2.0 GHz Attenuation Accuracy Per Bit4 DC–1.0 GHz DC–2.0 GHz VSWR (I/O) Typ. Max. Unit 1.7 2.2 3.1 2.0 2.5 3.5 dB dB dB (7% or 0.25 dB Whichever is Greater) (10% or 0.5 dB Whichever is Greater) DC–1.0 GHz DC–2.0 GHz 1.2:1 1.4:1 1.3:1 1.5:1 Typ. Max. dB dB Operating Characteristics at 25°C (+5 V, -5.6 V) Parameter Switching Characteristics5 Condition Frequency Min. Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru Input Power for 1 dB Compression 0.5–1.0 GHz 0.05 GHz Unit 15 30 30 ns ns mV +24 +16 dBm dBm Control Voltages VLow VHigh 0.0 4.5 0.2 5.0 V V Supply Voltages6,7 +5.0 V ± 0.20 V @ 4 mA Typ. -5.6 V ± 0.20 V @ 12 mA Typ. 4.8 -5.4 5.2 -5.8 V V 1. All measurements made in a 50 Ω system, unless otherwise specified. 2. DC = 300 kHz. 3. Insertion loss changes by 0.003 dB/°C. 4. Attenuation referenced to insertion loss. 5. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth. 6. Protection circuit for driver included in package. 7. Current drain @ 85°C = 6 mA Typ. @ +5 V, 16 mA Typ. @ -5 V. Skyworks Solutions, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 3/99A 1 GaAs IC 4 Bit Digital Attenuator With Driver 1 dB LSB DC–2 GHz AK802D4-24 Typical Performance Data (+5 V, -5.6 V) 5 4 4 3 3 dB dB 5 2 2 1 1 0 0 0 1 2 0 1 2 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 1, 2, 4 dB Bits vs. Frequency 15 2.2 14 1.9 13 dB dB 2.5 1.6 9 1.3 8 1.0 7 0 1 0 2 1 2 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency (All States) 8, 15 dB Bits vs. Frequency Absolute Maximum Ratings Characteristic Pin Out Value RF Input Power GND J2 0.5 W > 500 MHz 0.1 W @ 50 MHz Supply Voltage +6 V, -6 V Control Voltage -0.2 V, +6 V Operating Temperature 14 13 4 dB GND GND GND 12 11 2 dB 10 1 dB J1 GND 9 8 8 dB 0°C to +70°C Storage Temperature -65°C to +150°C ΘJC 30°C/W Truth Table C1 C2 C3 C4 8 dB 2 dB 4 dB 1 dB Attenuation J1–J2 0 0 0 0 Reference I.L. 0 0 0 1 1 dB 0 1 0 0 2 dB 0 0 1 0 4 dB 1 0 0 0 8 dB 1 1 1 1 15 dB 1 2 3 4 C3 C2 C4 C1 +5 V -5.6 V GND 5 6 7 “0” = 0.0 to 0.2 V, “1” = 4.5 to 5.0 V. 2 Skyworks Solutions, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email [email protected] • www.skyworksinc.com Specifications subject to change without notice. 3/99A