KDS Developed New 2.5x2.0 Size, Ultra Miniature SMD TCXO; Samples Are Now Available for the DSA/DSB221SA.TOKYO -- Daishinku Corp. (President Sohei Hasegawa) has introduced a new 2520 size, ultra miniature SMD (1) (Storage Module Device) A high-performance hard disk interface used with minis and mainframes that transfers data in the 1-4 MBytes/sec range (SMD-E provides highest rate). See hard disk. TCXO TCXO Temperature Compensated Crystal Oscillator TCXO Temperature-Controlled Crystal Oscillator , which enables miniature designs for mobile communications. The DSA (1) (Directory Server Agent) An X.500 program that looks up the address of a recipient in a Directory Information Base (DIB), also known as white pages. It accepts requests from the Directory User Agent (DUA) counterpart in the workstation. 221SA (VC-TCXO VC-TCXO Voltage-Controlled Temperature-Compensated Crystal Oscillator ) and DSB DSB Dispute Settlement Body (World Trade Organization) DSB Double Strand Break DSB Defense Science Board (US DoD) DSB Deep Sand Bed DSB Deutscher Sportbund 221SA (TCXO) are already developed and samples for these products are now available. KDS KDS Korea Data Systems (monitor manufacturer) KDS Kristen Demokratisk Samling KDS Keyboard Display Station KDS Karate Dance Style KDS Kuwaiti Dental Society (www.kwtdent. has developed many miniature size SMD Temperature Compensated Crystal Oscillators (TCXO) for use in mobile phones and other mobile communications. Two years ago, the Company developed DSA321S Series (VC-TCXO)/DSB321S Series (TCXO), which are 3.2x2.5 size products that are ideal for mobile communications. But today, KDS developed SMD TCXO that are even smaller and higher in function -- the DSA221SA (VC-TCXO)/DSB221SA (TCXO). The DSA221SA / DSB221SA are ideal for 3G (W-CDMA/CDMA2000, etc.) telecommunication applications that require smaller sizes. Thus, KDS plans to supply TCXO products to this growing market. The DSA221SA / DSB221SA are the smallest 2520 size products (dimensions: 2.5x2.0x0.8mm), with volume of 0.004cc (The volume is reduced by 45% in comparison with the 3225 size). For the development of these new TCXOs, we developed a new miniature IC to realize KDS' original technology of single package structure. These products can be manufactured with our conventional production facility, so there is an advantage in cost reduction and shortening of delivery time.
Characteristics
1. Ultra miniature (2.5x2.0x0.8mm, Volume 0.004cc, Weight 0.002g)
2. Low voltage (Supply voltage +2.8V (available up to +2.4V+/-0.1V)
3. Low harmonics
-- Reduced high order harmonics which affects radio function. When
designing the layout for miniature applications, the layout of
PCB for TCXO is easier.
4. Low current consumption
5. Low phase noise
6. Single packaged structure making the use of moisture-proof
packaging unnecessary.
Moisture Sensitivity Level: LEVEL 1 (IPC/JEDEC J-STD-033)
7. Pb free
Main Applications Mobile communications equipment (W-CDMA/ CDMA (Code Division Multiple Access) A method for transmitting simultaneous signals over a shared portion of the spectrum. The foremost application of CDMA is the digital cellular phone technology from QUALCOMM that operates in the 800 MHz band and 1.9 GHz PCS band. 2000/ CDMA/ GSM/ PCS) Mass Production Starting December 2005 |
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