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| GaAs IC 4 Bit Digital Attenuator With Driver 1 dB LSB DC-2 GHz AK802D4-24 Features Attenuation in 1 dB Steps to 15 dB 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) 0.016 (0.40 mm) 0.158 (4.01 mm) 0.150 (3.81 mm) PIN 1 INDICATOR SOIC-14 PIN 14 0.050 (1.27 mm) BSC 0.244 (6.20 mm) 0.228 (5.80 mm) 0.020 (0.51 mm) 0.013 (0.33 mm) 0.049 (1.24 mm) 0.016 (0.41 mm) Description 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. PIN 1 0.068 (1.73 mm) MAX. 0.016 MAX. (0.41 mm) x 45 CHAMFER 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 25C (+5 V, -5.6 V) Parameter1 Insertion Loss3 Frequency2 DC-0.5 GHz DC-1.0 GHz DC-2.0 GHz DC-1.0 GHz DC-2.0 GHz VSWR (I/O) DC-1.0 GHz DC-2.0 GHz Min. Typ. 1.7 2.2 3.1 Max. 2.0 2.5 3.5 Unit dB dB dB dB dB Attenuation Accuracy Per Bit4 (7% or 0.25 dB Whichever is Greater) (10% or 0.5 dB Whichever is Greater) 1.2:1 1.4:1 1.3:1 1.5:1 Operating Characteristics at 25C (+5 V, -5.6 V) Parameter Switching Characteristics5 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0.5-1.0 GHz 0.05 GHz VLow VHigh +5.0 V 0.20 V @ 4 mA Typ. -5.6 V 0.20 V @ 12 mA Typ. 0.0 4.5 4.8 -5.4 Frequency Min. Typ. 15 30 30 +24 +16 0.2 5.0 5.2 -5.8 Max. Unit ns ns mV dBm dBm V V V V Input Power for 1 dB Compression Control Voltages Supply Voltages6,7 1. All measurements made in a 50 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 @ 85C = 6 mA Typ. @ +5 V, 16 mA Typ. @ -5 V. Skyworks Solutions, Inc. [978] 241-7000 * Fax [978] 241-7906 * Email sales@skyworksinc.com * 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 3 5 4 3 dB 2 1 0 0 1 2 dB 2 1 0 0 1 2 Frequency (GHz) Frequency (GHz) Insertion Loss vs. Frequency 2.5 2.2 1.9 15 14 13 1, 2, 4 dB Bits vs. Frequency dB 1.6 1.3 1.0 0 1 2 dB 9 8 7 0 1 2 Frequency (GHz) Frequency (GHz) VSWR vs. Frequency (All States) 8, 15 dB Bits vs. Frequency Absolute Maximum Ratings Characteristic RF Input Power Supply Voltage Control Voltage Operating Temperature Storage Temperature JC Value 0.5 W > 500 MHz 0.1 W @ 50 MHz +6 V, -6 V -0.2 V, +6 V 0C to +70C -65C to +150C 30C/W Pin Out GND J2 14 13 GND GND GND 12 11 10 J1 9 GND 8 4 dB 2 dB 1 dB 8 dB Truth Table C1 8 dB 0 0 0 0 1 1 C2 2 dB 0 0 1 0 0 1 C3 4 dB 0 0 0 1 0 1 C4 1 dB 0 1 0 0 0 1 Attenuation J1-J2 Reference I.L. 1 dB 2 dB 4 dB 8 dB 15 dB 1 2 3 4 5 6 7 C3 C2 C4 C1 +5 V -5.6 V GND "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 sales@skyworksinc.com * www.skyworksinc.com Specifications subject to change without notice. 3/99A |
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