SKY12406-360LF Skyworks

DATA SHEET SKY12406-360LF: 50-600 MHz One-Bit Digital Attenuator (12 dB LSB) Applications Cellular radio Wireless data WLL gain level control circuits Features Positive voltage control: 0/3 V High bit accuracy Low loss Absorptive in 50 W systems Figure 1. SKY12406-360LF Block Diagram Small, QFN (8-pin, 2 x 2 mm) package (MSL1, 260 C per JEDEC J-STD-020) Description The SKY12406-360LF is a pHEMT GaAs FET I/C single bit attenuator designed for low-cost commercial applications where high attenuation accuracy, low insertion loss, and low intermodulation products are required. The attenuator has an LSB of 12 dB. The SKY12406-360LF is manufactured in a compact, 2 x 2 mm, 8-pin exposed pad plastic Quad Flat No-Lead (QFN) package. A functional block diagram is shown in Figure 1. The pin configuration and package are shown in Figure 2. Signal pin assignments and functional pin descriptions are provided in Table 1. Figure 2. SKY12406-360LF Pinout 8-Pin QFN (Top View) Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 200965B Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice January 24, 2011 1 DATA SHEET SKY12406-360LF ONE-BIT DIGITAL ATTENUATOR Table 1. SKY12406-360LF Signal Descriptions Pin Name Description Pin Name Description 1 RF1 RF port 5 GND Ground 2 GND Ground 6 VCTL2 DC control voltage 3 VCTL1 DC control voltage 7 GND Ground 4 CBP RF ground. Must be AC-coupled to ground. 8 RF2 RF port Table 2. SKY12406-360LF Absolute Maximum Ratings Parameter Symbol Minimum Maximum Units RF input power: PIN 3 V 50 MHz +24 dBm 3 V 600 MHz +27 dBm Operating temperature TOP 40 +85 C Storage temperature TSTG 65 +150 C Note: Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. CAUTION: Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) 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 should be used at all times. Typical performance characteristics of the SKY12406-360LF are Electrical and Mechanical Specifications illustrated in Figures 3 through 6. The absolute maximum ratings of the SKY12406-360LF are provided in Table 2. Electrical specifications are provided in The state of the SKY12406-360LF is determined by the logic Table 3. provided in Table 4. Skyworks Solutions, Inc. Phone 781 376-3000 Fax 781 376-3100 sales skyworksinc.com www.skyworksinc.com 2 January 24, 2011 Skyworks Proprietary Information Products and Product Information are Subject to Change Without Notice 200965B