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| www..com PRODUCT SUMMARY CX20505-14 Integrated Analog Device for GSM and GPRS Applications APPLICATIONS * * * * * * * * * * * * * * * * Global System for Mobile communicationsTM (GSMTM) and General Packet Radio Service (GPRS) Multiband Handsets GSM and GPRS Data Modules Introduction The CX20505-14 Integrated Analog (IA) is a highly integrated device designed for use in multi-band GSM and GPRS handsets. This device implements all the voice-band, mixed signal, and radio control functions in a GSM/GPRS handset. In the receive path, the CX20505-14 digitizes the baseband In-Phase/Quadrature (I/Q) input, and outputs the digital samples on the device receive port. The receive path features a PGA for AGC of the receive signal. FEATURES Supports Multi-slot GPRS up to Class 10 Analog-to-Digital Converters (ADCs) for digitization of baseband receive signal In the transmit path, bursts of digital data are input to the Receive path Programmable Gain Amplifier (PGA) for device over the control port. The GMSK modulator generates Automatic Gain Control (AGC) of received signal modulated I and Q waveforms from the input data. The I and Q Burst Store Random Access Memory (RAM) for storage of waveforms are converted into analog waveforms and output transmit data bursts from the device. Gaussian Minimum-Shift Keying (GMSK) Digital Modulator .com The CX20505-14 generates an analog signal to control the for modulation of Burst Store contents handset Power Amplifier (PA) output level. The signal is then Digital-to-Analog Converters (DACs) for analog conversion input to the Power Amplifier Control (PAC) circuit. of the GMSK modulator output Transmit power ramping and power level control The voice-band Codec section provides an interface to a 32 Low noise, voice-band ADC for interface to handset handset speaker and microphone. Line In/Out signals are also microphone available for interfacing to audio accessories such as a headset Low noise voice-band DAC for interface to handset or car kit. speaker The device operates directly from a single cell, 3.6 V Li Ion Auxiliary 8-bit ADC for monitoring system signals such as battery with no external regulation required. The device battery voltage features Low Drop Out (LDO) voltage regulators that generate High speed serial ports for interface to a Baseband the required device power supplies from the battery input. Processor device Internal power supply regulation from a single input A typical CX20505-14 application in a handset design is shown voltage in Figure 1. The device is packaged in a compact, 104-pin (10mm x 10mm) Fine Pitch Ball Grid Array (FPBGA) see Temperature Sensor for system thermal monitoring Error! Reference source not found... 104-pin 10 mm x 10 mm FPBGA package . DataShee .com 103186A Skyworks Solutions, Inc., Proprietary and Confidential [781] 376-3000fax [781] 376-3100sales@skyworksinc.comwww.skyworksinc.com 1 September 22, 2003 www..com CX20505-14 Product Summary PAC Vpwr Battery CX20526/CX20460 Tx CX74017 CX77304 Control CX20505 Rx RX Interface Control Interface Voiceband Interface CX805 CX815 VCCD VRF VSIM Memory User Interface CD, Keypad, etcetera Data Ports ... Microphone Speaker Figure 1. Typical CX20505-14 Application in a Handset Design A1 Ball Pad Corner 10.00 mm 12 A B 11 10 9 8 7 6 5 4 3 2 1 t4U.com DataShee .com C D E 10.00 mm 0.8 mm 0.8 mm Bottom View 0.46 mm F G H J K L M Top View Figure 2. CX20505-14 Device Package Dimensions .com 2 September 22, 2003 Skyworks Solutions, Inc., Proprietary and Confidential [781] 376-3000fax [781] 376-3100sales@skyworksinc.comwww.skyworksinc.com 103186A www..com CX20505-14 Product Summary Ordering Information Model Name CX20505-14 Manufacturing Part Number t4U.com DataShee .com (c) 2003, Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. ("Skyworks") products. These materials are provided by Skyworks as a service to its customers and may be used for informational purposes only. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its products, specifications and product descriptions at any time, without notice. Skyworks makes no commitment to update the information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from future changes to its products and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as may be provided in Skyworks' Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, RELATING TO SALE AND/OR USE OF SKYWORKSTM PRODUCTS INCLUDING WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. SKYWORKS FURTHER DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. SKYWORKS SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS. SkyworksTM products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks' customers using or selling SkyworksTM products for use in such applications do so at their own risk and agree to fully indemnify Skyworks for any damages resulting from such improper use or sale. The following are trademarks of Skyworks Solutions, Inc.: SkyworksTM, the Skyworks symbol, and "Breakthrough Simplicity"TM. Product names or services listed in this publication are for identification purposes only, and may be trademarks of third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworkssolutions.com, is incorporated by reference. 103186A .com September 22, 2003 Skyworks Solutions, Inc., Proprietary and Confidential [781] 376-3000fax [781] 376-3100sales@skyworksinc.comwww.skyworksinc.com 3 www..com t4U.com .com General Information: Skyworks Solutions, Inc. 20 Sylvan Road. Woburn, MA 01801 www.skyworksinc.com .com |
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