SKY12322-86LF

DATA SHEET SKY12322-86LF: GaAs Digital Attenuator 500 MHz–4 GHz 5 Bits, 0.5 dB LSB Features Broadband: 500 MHz–4 GHz ● Single positive control voltage: 2.7–5.5 V ● Low current consumption: 500 MHz, VCTL = 0/8 V 0.5 W for f < 500 MHz, VCTL = 0/8 V VHIGH ± 0.2 V -0.2 V < VC < 8 V -40 °C to +85 °C -65 °C to +150 °C Pin Out V1 1 0.5 dB 10 RF Input/Output 1 dB V2 2 9 GND Performance is guaranteed only under the conditions listed in the specifications table and is not guaranteed under the full range(s) described by the Absolute Maximum specifications. Exceeding any of the absolute maximum/minimum specifications may result in permanent damage to the device and will void the warranty. V3 3 2 dB 8 GND CAUTION: Although this device is designed to be as robust as possible, ESD (Electrostatic Discharge) can damage this device. This device must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD precautions must be employed at all times. V4 4 4 dB 7 GND V5 5 8 dB 6 RF Input/Output Pin Descriptions Pin Number Pin Name V1 V2 V3 V5 V5 J2 GND Description Control Voltage – High Impedance control voltage input for 0.5 dB weighted bit (LSB) Control Voltage – High Impedance control voltage input for 1 dB weighted bit Control Voltage – High Impedance control voltage input for 2 dB weighted bit Control Voltage – High Impedance control voltage input for 4 dB weighted bit Control Voltage – High Impedance control voltage input for 8 dB weighted bit (MSB) RF Input/Output – RF input or output port, supply voltage input Equipotential Point – Equipotential points for control voltages and RF circuits. Must be connected to pcb ground via lowest possible impedance RF Input/Output – RF input or output port 1 Truth Table V1 VHIGH VLOW VHIGH VHIGH VHIGH VHIGH VLOW V2 VHIGH VHIGH VLOW VHIGH VHIGH VHIGH VLOW V3 VHIGH VHIGH VHIGH VLOW VHIGH VHIGH VLOW V4 VHIGH VHIGH VHIGH VHIGH VLOW VHIGH VLOW V5 VHIGH VHIGH VHIGH VHIGH VHIGH VLOW VLOW Nominal Attenuation Reference I.L. 0.5 dB 1 dB 2 dB 4 dB 8 dB 15.5 dB 2 3 4 5 6 7, 8, 9 3 V < VHIGH < 5 V, VS = VHIGH ± 0.2 V, 0 < VLOW < 0.2 V. 10 J1 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 July 31, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200273 Rev. B DATA SHEET • SKY12322-86LF Evaluation Board The evaluation board for SKY12322-86 allows the part to be fully exercised. The RF signal may be applied to J1 or to J2 without change in performance. The supply voltage (VS) is applied to pin 6 via R1. DC blocking capacitors (C1 and C2) are required at the RF ports. The values of R1, C1 and C2 are shown in Evaluation Board Components Table. The attenuation produced by the SKY12322-86 is determined by the voltages applied to the high impedance control voltage ports V1 through V5. Each control voltage port determines whether its asso- ciated attenuation bit, as listed in the Truth Table, is switched into or out of the RF signal path. Each of these control voltage ports must be held at 0 V (VLOW) or at VS ± 0.2 V (VHIGH). The supply voltage must be within 0.2 V of VHIGH or damage may result. Any combination of VHIGH and VLOW may be applied to ports V1 through V5. For example, if the desired attenuation value is 5.5 dB, VLOW is applied to the 0.5 dB, 1 dB and 4 dB voltage control ports, which are V1, V2 and V4, respectively. VHIGH is applied to the remaining voltage control ports to ensure that their attenuation bits are not switched in to the RF signal path. Evaluation Circuit PCB V5 5 V4 4 V3 3 V2 2 V1 1 SKY12322-86 6 J2 C2 R1 VS 7 8 9 10 C1 J1 Evaluation Board Components Component C1, C2 R1 U1 J1, J2 Description DC blocking capacitor RF block GaAs digital attenuator SMA connectors Default 47 pF, size 0402 10k Ω, size 0402 MSOP-10 Pin 10 0.118 (3.00 mm) ± 0.006 (0.15 mm) 0.193 (4.90 mm) ± 0.006 (0.15 mm) Pin 1 Indicator Pin 1 0.034 (0.86 mm) ± 0.004 (0.10 mm) Recommended Solder Reflow Profiles Refer to the “Recommended Solder Reflow Profile” Application Note. 0.0197 (0.500 mm) BSC 0.118 (3.00 mm) ± 0.006 (0.15 mm) 8˚–16˚ 0˚–6˚ 0.043 (1.09 mm) Max. 0.022 (0.55 mm) ± 0.006 (0.15 mm) Tape and Reel Information Refer to the “Discrete Devices and IC Switch/Attenuators Tape and Reel Package Orientation” Application Note. 0.009 (0.23 mm) Ref. 0.006 (0.15 mm) Max. 0.002 (0.05 mm) Min. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200273 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 31, 2006 5 DATA SHEET • SKY12322-86LF Copyright © 2002, 2003, 2004, 2005, 2006, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. Skyworks assumes no responsibility for errors or omissions in these materials or the information contained herein. Skyworks may change its documentation, products, services, specifications or product descriptions at any time, without notice. Skyworks makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. 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Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 July 31, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200273 Rev. B