FXLA2203 − Dual-Mode Dual-SIM Card Level Translator

The FXLA2203 allows either two hosts to simultaneously communicate with two Subscriber Identity Modules (SIM), or two User Identity Modules (UIM). Dual Mode refers to the mobile phones that are compatible with more than one form of data transmission or network (such as GSM, CDMA, WCDMA, TDSCDMA, or CDMA2000), resulting in a dual-baseband processor configuration. In a dual-mode application, the FXLA2203 host ports interface directly with the baseband processors.

The bi-directional I/O open-drain channel features auto-direction and internal 10KΩ pull-up resistors. RST and CLK provide unidirectional translation from host to card only.

Either host can swap SIM slots with the assertion of a single control pin: CH_Swap. The typical channel swap time is 130ns.

The FXLA2203 does not contain internal Low Dropout Regulator (LDOs). Instead, the FXLA2203 architecture incorporates two low-RON internal power switches for routing existing PMIC (Power Management Integrated Circuit) LDOs to individual SIM slots. This reduces overall system power, leverages existing LDO system resources, and aligns with the philosophy that centralizing LDOs in the PMIC facilitates power management. Since the FXLA2203 does not block the LDO function to the SIM card, existing activation / deactivation timing transparency is maintained between Hosts, PMICs, and SIM cards.

The device allows voltage translation from as high as 3.6V to as low as 1.65V. Each port tracks its own port power supply.

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Product Status/Pricing/Packaging

Index	Product	Product & Eco Status	*Pricing	Packaging & Packing Info	**Package Marking Convention	Qualification Support	Compliance Certificates
0	FXLA2203UMX	Full Production Green as of Aug 2010	$0.377	UMLP 2.5x3.4 24L Details UMLP 2.5x3.4 24L Drawing  TAPE REEL	Line 1:XP	FIT :  5.86   ESD (CDM) :  2000  V ESD (HBM) :  3000  V Show more... RTHETA (JA) :  52.1  °C/W Moisture Sensitivity Level (MSL) :  1   Max Reflow Temp :  260	RoHS IPC1752 RoHS/REACH/JIG RoHS/REACH/JIG

• Fairchild 1,000 piece Budgetary Pricing. *
• If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
• Top mark packaging information for product FXLA2203 is available. **

Features

• Easy-to-Use "Single Pin" SIM Card Swap Control
• Channel Swap Time: 130ns (Typical)
• Simultaneous Dual-Mode, Dual-SIM Communication
• Host Ports: 1.65V to 3.6V Voltage Translation
• Card Ports: 1.65V to 3.6V Voltage Translation
• Leverages the Presence of Existing PMIC LDOs
• ISO7816 Compliant
• Power Switch R_ON: 0.5Ω (Typical)
• Supports Class B 3V SIM / UIM Cards
• Supports Class C: 1.8V SIM / UIM Cards
• Non-Preferential Host V_CC Power-Up Sequencing
• Activation / Deactivation Timing Compliant per ISO7816-03
• Internal Pull up Resistors for Bi-Directional I/O Pin
• Outputs Switch to 3-State if Host V_CC at GND
• Power-Off Protection
• Packaged in 24-Terminal UMLP (2.5mm x 3.5mm)
• Direction Control Not Needed
• ESD Protection Exceeds 18kV IEC 61000-4-2 (System-Level ESD)

Applications

Server & Mainframe Workstation Desktop PC Notebook PC PC Server Media Tablets Storage & Peripherals Printer Graphic Card LCD Monitor CRT/RPTV

Other Data Processing Routers & LAN Switches SAN Long-haul & Metro Broadband Access Broadband Modem Enterprise Voice Network Central Office Broadcast & Studio Other Wired Communications Mobile Handsets

Wireless LAN Card & Broadband Access Wireless LAN Access Point/Router Mobile Comm Infrastructure Other Wireless Communications PMP/MP3 Players Home Audio System Components CRT/RPTV LCD TV PDP TV Camcorder DVD

Set Top Boxes DSC Video Game Console E-book Reader Consumer Appliances Other Audio & Video Other Consumer Electronics Medical Electronics/Devices Automation Test and Measurement Building & Home Control

Other Industrial

Application Notes

Collateral