 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| GaAs SPDT Switch DC- 3.0 GHz V 1.00 SW-438 Features * * * * 1. Functional Schematic GHz 1 C=100pF C=8pF C=100pF C=100pF C39pF C=100pF Low Insertion Loss, 0.7 dB @ 2.4 High Isolation, 25 dB @ 2.4 GHz1 Low Power Consumption, < 10 A @ +3 V Low Cost Plastic SOT-363 Package For best results at 2.4 GHz, use 8 pF 0402 profile SMT capacitors on RF ports and 100 pF bypassing on pins 4 and 6. V1 RFC V2 V1 RFC V2 Description The SW-438 is a GaAs MMIC SPDT switch in a low cost SOT-363 surface mount plastic package. Typical applications include transmit/receive switching for Bluetooth and WLAN equipment. The SW-438 can also be used in applications up to 500 mW in systems such as cellular, PCS, DCS1800, GSM, CDMA and other analog and digital wireless communications systems. M/A-COM fabricates the SW-438 using a 0.5 micron gate length GaAs p-HEMT process. The process features full passivation for increased performance and reliability. RF1 GND RF2 RF1 GND RF2 PIN 1 2.4 GHz Application C=8pF C=8pF PIN 1 Broad Band Applications C39pF C 39pF Pin Configuration Pin No. 1 Function RF1 GND RF2 V2 RFC V1 Description RF Input/Output RF Ground RF Input/Output Control 2 Input RF Common Port Control 1 Input External Component Requirements Please note the values of the external capacitors. The capacitors at each of the RF ports are used as for achieving optimum insertion loss. They also provide DC blocking for positive control. The 8 pF (0402) capacitor is recommended for 2 - 3 GHz operation. If this value is changed or the capacitor placed too far from the switch, the performance will be affected. We also recommend 100 pF bypass capacitors on pins 4 and 6. For broadband applications with positive control voltages, use DC blocking capacitors with value of 39 pF or more. 2 3 4 5 6 Ordering Information Part Number SW-438TR-3000 SW-438SMB Package SW-438 on 13 Inch, 3000 piece Reel SW-438 sample test board Truth Table Mode (Control) Positive1 Negative 2 0 + 0.2V +2.3 to +5V 0 + 0.2V -2.3 to +5V +2.3 to +5V 0 + 0.2V -2.3 to +5V 0 + 0.2V Off On On Off On Off Off On V1 V2 RFC-RF1 RFC-RF2 1. 2. External DC blocking capacitors are required on all RF ports. If negative control is used, DC blocking capacitors are not required on RF ports. GaAs SPDT Switch, DC-3.0 GHz Electrical Specifications: TA = 25C, 3V Control Parameter Insertion Loss Isolation Test Conditions DC-3.0 GHz DC-1.0 GHz 1.0-2.0 GHz 2.0-3.0 GHz DC-1.5 GHz 1.5-3.0 GHz 500 MHz-2.0 GHz 500 MHz-2.0 GHz 2-tone 900 MHz, 5 MHz spacing (2.3V) 2-tone 900 MNz, 5 MHz spacing (2.3V) 2.4 GHz Pin = 20 dBm, Vc = 2.3V 2.4 GHz Pin = 20 dBm, Vc = 2.3V 50% ctl to 10/90% RF 10% to 90% RF |Vctl| = 5V Units dB dB dB dB dB dB dBm dBm dBm dBm dBc dBc ns ns A 29 23 21 18 16 23 28 Min Typ 0.7 31 25 23 22 20 26 31 81 55 70 60 20 10 5 SW-438 V 1.00 Max 0.8 Return Loss P1dB (2.3 V supply) P1dB (3V supply) IP2 IP3 2nd Harmonic 3rd Harmonic Ton, Toff Trise, Tfall Gate Leakage 10 Typical Performance Curves Bluetooth Applications (8 pF DC Blocking Capacitors, +2.3V Control) Insertion Loss vs. Frequency Over Temperature 1.0 0.9 0.8 Insertion Loss (dB) 0.7 +85C Isolation vs. Frequency Over Temperature 30 29 28 +25C 27 Isolation (dB) 26 25 24 23 22 21 20 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 +85C +25C -40C 0.6 0.5 0.4 0.3 0.2 0.1 0.0 Frequency (GHz) -40C 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Frequency (GHz) 2.7 2.8 2.9 3.0 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 2 GaAs SPDT Switch, DC-3.0 GHz Return Loss vs. Freqency Over Temperature 35 SW-438 V 1.00 30 Return Loss (dB) +85C 25 +25C 20 -40C 15 10 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 Frequency (GHz) Broadband Applications (No DC Blocking Capacitors, -2.3 V Control) Insertion Loss vs. Frequency Over Temperature 1.0 0.9 0.8 Insertion Loss (dB) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) 2.5 3.0 +25C -40C +85C Isolation vs. Frequency Over Temperature 60 55 50 Isolation (dB) 45 40 -40C 35 +25C 30 25 20 0.0 +85C 0.5 1.0 1.5 2.0 Frequency (GHz) 2.5 3.0 Return Loss vs. Frequency Over Temperature 35 30 Return Loss (dB) 25 +85C 20 +25C -40C 15 10 0.0 0.5 1.0 1.5 2.0 Frequency (GHz) 2.5 3.0 Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. 3 GaAs SPDT Switch, DC-3.0 GHz SW-438 V 1.00 SOT-363 (SC-70) Plastic Package Dimension A A1 A2 b c D e E E1 L Measurement (mm) Min. -- 0 0.70 0.15 0.08 Nom. -- -- 0.90 -- -- 2.00 basic 0.65 basic 2.10 basic 1.25 basic 0.42 ref. Max. 1.10 0.10 1.00 0.30 0.22 Note: See JEDEC MO-203 VAR AB for Additional dimensions and tolerances. PIN 6 D ee A E1 PIN 1 E L A A2 b A1 c Specifications subject to change without notice. n North America: Tel. (800) 366-2266 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. |
Price & Availability of SW-438
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |