CBS8348

PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz DESCRIPTION AL The CBS8348 is a broadband GaAs pHEMT MMIC SPDT switch in a lead-free 2 mm 8-lead PDFN package. Typical applications are for WLAN IEEE 802.11a + b/g, and MIMO. Other applications include test equipment requiring ultra fast switching speeds. Designed for low insertion loss, this SPDT switch maintains low loss up to 10 GHz. BLOCK DIAGRAM RF 1 N/C 2 N/C 3 4 9 9 GND 8 Vc1 7 RFC 6 N/C 5 Vc2 CO RF2 NF ID EN TI The CBS8348 is fabricated using a 0.5 micron gate length GaAs pHEMT process. The process features full passivation for performance and reliability. Figure 1. CBS8348 Block Diagram FEATURES TE R High Isolation: >25dB @ DC~10 GHz Low Insertion Loss: 0.7-1.8 dB @ DC~10 GHz Non-Refl ective Design Chip Size: 2x2x0.75(mm) 802.11a + b/g and MIMO Applications Test and Measurement and Low/Medium Power Telecommunication Applications up to 10 GHz Broadband Performance: DC~10 GHz Fast Settling for Low Gate Lag Requirements This switch is suitable DC - 10 GHz applications：  Fiber Optics  Microwave Radio  Military  Space  VSAT CH IP BE T          APPLICATIONS Chipbetter Microelectronics Inc. - 1 / 7 - www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz RF 1 8 Vc1 N/C 2 7 RFC N/C 3 4 NF ID EN TI RF2 9 AL PIN-OUT DIAGRAM 9 GND 6 N/C 5 Vc2 Figure 2. CBS8348 Pin out (Top View) PIN ASSIGNMENTS Description RF Output 1 No Connection No Connection RF Output 2 Voltage Control 2 Pin 6 7 8 9 CO Name RF1 N/C N/C RF2 Vc2 Name N/C RFC Vc1 Paddle Description No Connection RF Common Voltage Control 1 RF and DC Ground CH IP BE T TE R Pin 1 2 3 4 5 Chipbetter Microelectronics Inc. - 2 / 7 - www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz ABSOLUTE MAXIMUM RATINGS Symbol Min -0.5 -65 -55 VVc1, Vc2 Max +34 +7.5 +150 +150 +85 ±1 NF ID EN TI VRF1, RF2, RFC (Each single RF-in/out port versus ESD Sensitivity (HBM) Units dBm V °C °C °C KV AL Parameters RF Input Power (Vctl = +5V) Control Voltage Range (A & B) Channel Temperature Storage Temperature Operating Temperature ±8 GND, with 27 nH shunt inductor) KV CBS8348 ELECTRICAL SPECIFICATIONS1 Parameters Symbol (2 Tone input power = +5dBm/tone,10MHz Spacing) Typ. Max Unit s DC-10GHz DC-10GHz DC-10GHz DC-10GHz DC-10GHz DC 16 16 26 30.5 0.8 22 20 29 32 10 1.8 47 40 - GHz dB dB dB dBm dBm DC-10GHz 41 45 - dBm 80 82 - dB 82 85 - dB 2.9 3.3 5 0.2 V V - 10 30 - ns 2.4 GHz 5.3 GHz 5.8 GHz 2.4 GHz 5.3 GHz 5.8 GHz TE R 2nd Harmonic 3rd Harmonic Min CO (With 0/+3.3V Control, 50 Ohm System; Temp = 25ºC) Operation Frequency Insertion Loss I.L. Isolation ISO. Return Loss R.L. Input Power for 0.1dB Compression P0.1dB Input Power for 1dB Compression P1dB Input Third Order Intercept IIP3 Test Condition BE T Logical Control Voltage (High) Logical Control Voltage (Low) Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) Control Current 1 uA CONTROL VOLTAGES STATE Bias Condition 0 to -0.2V@1 uA Max. +3.3V@1uA Typ. to +7.5V@10uA Max. IP Low High CH LOGIC TRUTH TABLE A High(+3.3V) Low(0V) Control Input B Low(0V) High(+3.3V) Chipbetter Microelectronics Inc. RF1 to RFC ON ISO - 3 / 7 - Signal Path State RF2 to RFC ISO ON www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz PERFORMANCE PLOTS BE T TE R CO NF ID EN TI AL RF1/RF2 to RFC S-parameter CH IP Note: DC block capacitor 8pF Vc=+3.3V Temp = 25ºC Chipbetter Microelectronics Inc. - 4 / 7 - www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz NF ID EN TI AL EVALUATION BOARD ASSEMBLY DRAWING Figure 3. Evaluation Board Assembly Drawing BILL OF MATERIALS Component Value Size Vendor Part Number Note 8pF 0402 Murata GRM0225C1E1R0BA03D DC block capacitor C2 220pF 0402 Murata GRM022R71C102KE14D Bypass capacitor C3 8pF 0402 Murata GRM0225C1E1R0BA03D DC block capacitor C4 8pF 0402 Murata GRM0225C1E1R0BA03D DC block capacitor C5 220pF 0402 Murata GRM022R71C102KE14D Bypass capacitor CH IP BE T TE R CO C1 Chipbetter Microelectronics Inc. - 5 / 7 - www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz TYPICAL PART MARKING S8348 XXXXX AL Pin 1 Indicator Part Number NF ID EN TI ChipBetter Lot Code Figure 4. Typical Part Marking for the CBS8348 PACKAGE DIMENSIONS (All Dimensions in mm): 0.75 0.02 0.25 0.18REF 0.20REF 2.00 1.20 0.70 0.00 0.18 1.95 1.15 E Symbol Size Min(mm) e E E2 L h 0.80 0.05 0.30 2.05 1.25 Max(mm) Nom(mm) 0.50BSC 1.95 2.00 2.05 0.65 0.70 0.75 0.25 0.30 0.35 0.15 0.20 0.25 L/F Carrier size (mm):1.10*1.80 L c E2 8 8 e TE R 1 Max(mm) Nom(mm) h 1 h Min(mm) CO Size Symbol A A1 b b1 c D D2 5 side view 4 bottom view 1 A IP top view CH D2 5 4 Chipbetter Microelectronics Inc. b b1 BE T D Laser Mark Pin 1 ID Figure 5. CBS8348 Package Dimension - 6 / 7 - www.chipbetter.com PRELIMINARY CBS8348 GaAs pHEMT MMIC SPDT SWITCH, DC~10 GHz CONTACT INFORMATION For the latest specifications, additional product information, worldwide sales and distribution locations: AL Web: www.chipbetter.com Tel: 0755-26654180 NF ID EN TI DISCLAIMERS ChipBetter reserves the right to make changes without further notice to specifications and product descriptions in this document to improve reliability, function or design. ChipBetter does not assume any liability arising out of the application or use of information or product described in this document. Neither does ChipBetter convey any license under its intellectual property rights nor licenses to any of circuits described in this document to any third party. The information in this document is believed to be accurate and reliable and is provided on an "as is" basis, without any express or implied warranty. Any information given in this document does not constitute any warranty of merchantability or fitness for a particular use. The operation of this product is subject to the user's implementation and design practices. ChipBetter products are not designed or intended for use in life support equipment, devices or systems, or other critical applications, and are not authorized or warranted for such use. CH IP BE T TE R CO Copyright of ChipBetter Microelectronics Co, Ltd. All rights reserved. Chipbetter Microelectronics Inc. - 7 / 7 - www.chipbetter.com