AWS5524 0.5 to 2.5 GHz SP4T Switch ADVANCED PRODUCT INFORMATION - Rev 0.1 FEATURES • Low Insertion Loss: 0.8 dB at 2 GHz • High Isolation: > 25 dB • Low Harmonic Levels: < -65 dBc at max. GSM power • Low Control Voltage Operation: to +2.5 V APPLICATIONS • Front-end Modules for GSM Wireless Handsets D1 Die PRODUCT DESCRIPTION The AWS5524 is a single pole, four throw (SP4T) RF switch developed to meet the stringent requirements of GSM systems. Manufactured in ANADIGICS’ state-of-the-art pHEMT process, the device uses patent-pending circuit topologies to RF4 provide the low insertion loss, high port-to-port isolation and high linearity needed to enhance the performance of GSM radios. The AWS5524 is offered as an unpackaged MMIC die. RFC RF1 RF4G RF1G V4 V1 V3 V2 RF3G RF3 VS RF2 Figure 1: Block Diagram 12/2002 RF2G RFC 1425 RF4 RF1 1075 RF1G 850 V4 546 V3 310 RF3G 306 RF3 VS RF2 V1 596 V2 371 RF2G 75 1333 671 1036 RF4G 735 1225 907 736 1150 306 75 AWS5524 1500 Dimensions in µm Bondpads 100 x 75µm Dimensions in µm Bond Pads: 100 µm x 75 µm Die Thickness: 178 µm Figure 2: Die Configuration Table 1: Pad Description NAME RF1 RFG1 RF port, path 1 Ground NAME RF3 RFG3 DESCRIPTION RF port, path 3 Ground V1 Control voltage, RF path 1 V3 Control voltage, RF path 3 V2 Control voltage, RF path 2 V4 Control voltage, RF path 4 RFG2 2 DESCRIPTION Ground RF4G Ground RF2 RF port, path 2 RF4 RF port, path 4 VS Common port bias voltage (logic high) RFC RF common port ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 AWS5524 ELECTRICAL CHARACTERISTICS Table 2: Absolute Minimum and Maximum Ratings PARAMETER MIN MAX UNIT Common Port Bias Voltage (VS) (1) -0.2 +8.0 V Control Voltages (V1, V2, V3, V4) -0.2 +8.0 V - 10 W -65 +150 °C RF Input Power (PIN) Storage Temperature (2) COMMENTS at all RF ports Stresses in excess of the absolute ratings may cause permanent damage. Functional operation is not implied under these conditions. Exposure to absolute ratings for extended periods of time may adversely affect reliability. Notes: (1) The VS port may remain open-circuited without damage to the device. (2) Storage Temperature limits apply to the die only after it has been removed from the ANADIGICS shipping material. 3. All RF ports should be AC-coupled. No external DC bias should be applied. Table 3: Operating Ranges PARAMETER MIN TYP MAX UNIT RF Frequency (f) 0.5 - 2.5 GHz Common Port Bias Voltage (VS) - (1) - - applied at VS port Control Voltages (V1, V2, V3, V4) 0 +2.5 - +0.2 +3.5 V RF path OFF state RF path ON state Ambient Temperature (TA) -30 - +85 o COMMENTS C The device may be operated safely over these conditions; however, parametric performance is guaranteed only over the conditions defined in the electrical specifications. Notes: (1) For optimal linearity performance, the Common Port Bias Voltage (VS) should be set to the same Control Voltage used to turn ON any of the individual RF paths. The VS port may remain open-circuited without damage to the device, but with some degradation in linearity. ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 3 AWS5524 Table 4: Electrical Specifications (TA = +25 °C; RF ports terminated with 50 Ω; Vn = +2.7 V and is the Control Voltage for the ON path, RFC - RFn; Vx = 0 V and is the Control Voltage for the OFF paths, RFC - RFx) PARAMETER MIN TYP MAX UNIT Insertion Loss 1 GHz 2 GHz - 0.5 0.8 0.7 1.0 Return Loss 1 GHZ 2 GHz - -25 -17 -20 -15 25 25 27 27 - Input Third Order Intercept (2) 800 MHz Cellular Band 1900 MHz PCS Band - +66 +59 - 2nd Harmonic Rejection 1 GHz 2 GHz - -71 -72 -65 -65 3rd Harmonic Rejection (3) 1 GHz 2 GHz - -88 -80 -65 -65 dB c - - 30 5 µA µA COMMENTS RFC port to selected RFn port dB RFC port and selected RFn port (1) Isolation 1 GHz 2 GHz dB RFC port to isolated RFx ports Current Consumption dB RFC port to selected RFn port dB m dB c RFC port to selected RFn port PIN = +34 dBm PIN = +32 dBm RFC port to selected RFn port PIN = +34 dBm PIN = +32 dBm each Vn port VS port Notes: (1) Isolated RFx ports have a return loss of approximately -3 dB. (2) For the Cellular Band, two tones with PIN = +22.5 dBm each, at 837 and 838 MHz. For the PCS Band, two tones with PIN = +21 dBm each, at 1880 and 1881 MHz. (3) VS = Vn Table 5: Switch Control Truth Table CONTROL VOLTAGES RF PATH SELECTION 4 V1 +2.5 to +3.5 V 0 to +0.2 V 0 to +0.2 V 0 to +0.2 V V2 0 to +0.2 V +2.5 to +3.5 V 0 to +0.2 V 0 to +0.2 V V3 0 to +0.2 V 0 to +0.2 V +2.5 to +3.5 V 0 to +0.2 V V4 0 to +0.2 V 0 to +0.2 V 0 to +0.2 V +2.5 to +3.5 V RFC - RF1 ON OFF OFF OFF RFC - RF2 OFF ON OFF OFF RFC - RF3 OFF OFF ON OFF RFC - RF4 OFF OFF OFF ON ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 AWS5524 PERFORMANCE DATA Figure 4: Harmonics of 1 GHz vs. Control Voltage (ON path, Vx = 0 V, f = 1 GHz, PIN = +34 dBm) Figure 3: Insertion Loss vs. Frequency (ON path, Vn = +2.7 V, Vx = 0 V) -30 -0.2 2nd Harmonic, Vs open 2nd Harmonic, Vs = Vn 3rd Harmonic, Vs open 3rd Harmonic, Vs = Vn -40 Harmonic Level (dBc) Insertion Loss (dB) -0.4 -0.6 -0.8 -50 -60 -70 -80 -90 -1.0 -100 2.5 -1.2 500 1000 1500 2000 2.6 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 Control Voltage (V) 2500 Frequency (MHz) Figure 6: Harmonics of 2 GHz vs. Control Voltage (ON path, Vx = 0 V, f = 2 GHz, PIN = +32 dBm) Figure 5: Return Loss vs. Frequency (ON path, Vn = +2.7 V, Vx = 0 V) 0 -30 RFC port RFn port Harmonic Level (dBc) -10 Return Loss (dB) 2nd Harmonic, Vs open 2nd Harmonic, Vs = Vn 3rd Harmonic, Vs open 3rd Harmonic, Vs = Vn -40 -20 -50 -60 -70 -80 -30 -90 -100 -40 500 2.5 1000 1500 2000 2.6 2.7 2.8 2500 2.9 3 3.1 3.2 3.3 3.4 3.5 Control Voltage (V) Frequency (MHz) 0 Figure 7: Isolation vs. Frequency (OFF path, Vn = +2.7 V, Vx = 0 V) Isolation (dB) -10 -20 -30 -40 500 1000 1500 2000 2500 Frequency (MHz) ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 5 AWS5524 APPLICATION INFORMATION Die Applications Bonding and circuit connections for the unpackaged AWS5524 die are shown in Figure 8, and application details are listed in the following notes: 4. L ESD provides a means to increase the ESD protection on a specific RF port, typically the port attached to the antenna. The ESD rating of the device is ±125 V HBM overall. This rating is associated with the control pin to RF port path. RF port to RF port/RF Gnd has been determined to be >±500 V HBM for this technology. By using LESD as an RF choke on a port, an ESD protection to ±8 kV contact discharge can be achieved. 1. Cb are DC blocking capacitors external to the device. A value of 100 pF is sufficient for operation to 500 MHz. The values may be tailored to provide specific electrical responses. The isolation of the switch provides enough decoupling of RF ports 1 through 4 so that overall switch performance is not affected. 5. The die may be attached by either conductive or non-conductive epoxy formulated for attaching semiconductor parts. The back of the die is electrically isolated from the switch circuit and can be grounded or left isolated. 2. The VS pin provides a fixed voltage potential to the common port of the switch. To get the best linear performance, it should be tied to the logic high voltage potential (not the power supply). Current draw on this pin is less than 5 µA. 3. The RF Ground bondwires should be kept as short as possible and bonded directly to a good RF ground for best broadband performance. RF Port 4 Common (Ant.) RF Port Cb Cb LESD Note 4 Cb RF4 RF Gnd, Path 4 Shunt RF Port 1 RF1 RFC RF4G RF Gnd, Path 1 Shunt RF1G Control Pin, RF Path 4 V4 V3 Control Pin, RF Path 3 V1 Control Pin, RF Path 1 V2 Control Pin, RF Path 2 RF3G RF Gnd, Path 3 Shunt RF3 VS RF2 RF2G Keep RF Gnd Bondwires Short 4 Places, Note 3 RF Gnd, Path 2 Shunt Cb Common Port Supply RF Port 3 Note 2 (Logic high) Cb RF Port 2 Figure 8: Application Schematic 6 ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 AWS5524 NOTES ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002 7 AWS5524 ORDERING INFORMATION ORDER NUMBER TEMPERATURE RANGE PACKAGE DESCRIPTION COMPONENT PACKAGING AWS5524D1 -30 oC to +85 oC Die (contact ANADIGICS for details) ANADIGICS, Inc. 141 Mount Bethel Road Warren, New Jersey 07059, U.S.A. Tel: +1 (908) 668-5000 Fax: +1 (908) 668-5132 URL: http://www.anadigics.com E-mail: [email protected] IMPORTANT NOTICE ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without notice. The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are subject to change prior to a product’s formal introduction. Information in Data Sheets have been carefully checked and are assumed to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges customers to verify that the information they are using is current before placing orders. WARNING ANADIGICS products are not intended for use in life support appliances, devices or systems. Use of an ANADIGICS product in any such application without written consent is prohibited. 8 ADVANCED PRODUCT INFORMATION - Rev 0.1 12/2002