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PRODUCT SUMMARY
SKY74073: Dual-Band SPRTM Module for GSM and GPRS Handset Applications
Applications
* EGSM900 and DCS1800 cellular handsets encompassing: - Class 4 EGSM900 - Class 1 DCS1800 * GPRS Class 10 handsets and modules.
Description
The SKY74073 SPRTM module combines all of the circuitry required to design a dual-band EGSM900 and DCS1800 radio into the world's smallest single package module. This small package is approximately one-third the size of alternative radio solutions and uses Skyworks low cost, multi-layer laminate substrate technology. The SKY74073 can save handset designers significant space and design-cycle time while providing a roadmap for future multi-band and 3G applications. The SPR module contains Skyworks certified Full Type Approval (FTA), single-chip BiCMOS direct conversion transceiver technology. Direct conversion architecture eliminates costly Intermediate Frequency (IF) conversion steps while reducing the number of components required to support multi-band GSM/GPRS handsets. Agile channel switching enables support of GPRS multislot operations. Translation loop architecture is used in the transmit path. Transmit loop filters and all supporting circuitry are also integrated in the SPR module. Impedance-matching for the 50 antenna port, I/O bias control circuitry, and DC blocking circuitry are integrated into the module. Two separate Heterojunction Bipolar Transistor (HBT) Power Amplifier (PA) blocks are fabricated on a single Gallium Arsenide (GaAs) die to provide maximum performance with the smallest possible footprint. Optimized for lithium ion battery operation, both PA blocks share common power supply pins. A custom CMOS integrated circuit provides the internal interface to the PA. The CMOS PA controller die also provides the antenna switch decoding functionality. Transmit low pass circuitry designed to filter out signal harmonics, a diplexer, and two receive Surface Acoustic Wave (SAW) filters are also integrated in the radio module. The front-end radio circuitry uses two of Skyworks high performance, low current consumption Pseudomorphic High Electron Mobility Transistor (PHEMT), Single Pole Double Throw (SPDT) GaAs switches. The switches typically draw less than 10 A of current during operation and are designed for low insertion loss and high linearity performance. Electrostatic Discharge (ESD) protection circuitry is integrated into the SPR module and ensures the module's ruggedness under extreme conditions. A functional block diagram of the SKY74073 SPR is shown in Figure 1.
Features
* Fully integrated transceiver, PA, PA control circuitry, antenna switch, diplexer, transmit harmonic filters, and SAW filters * Low external component count. Requires only one external crystal and two low-cost capacitors * Integrated DCOC sequencer * Single Integrated, fully programmable fractional-N synthesizer suitable for multi-slot GPRS operation * Integrated crystal oscillator circuitry * Meets AM suppression requirements * Low power standby mode * Gold plated, lead-free contacts * Compact, 40-pin 13 x 13 x 1.8 mm laminate Multi-Chip Module (MCM) package
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com
103073D * Skyworks Proprietary and Confidential information * Products and Product Information are Subject to Change Without Notice * November 29, 2004
1
PRODUCT SUMMARY * SKY74073
3-Wire Bus
Discrete Control Lines
Control Registers
1800MHz
TXI
/ D2
DFC
900MHz TXQ
/ D1
X2
/3
DFC
- +
BB_APC
Delta Sigma PLL
XTAL_TUNE BUF_DIV XTAL_BUF
/1//2
EGSM LNA
EGSM RX SAW
Antenna
RXI
GSM
DCOC3
DCOC2
DCOC Timer
DCOC1
DCS LNA
DCS RX SAW
T/R Switch
RXQ
DCS
VGA2 Aux VGA1 + gMC LPF1 RC
S031
Figure 1. SKY74073 SPR Functional Block Diagram
Ordering Information
Model Name SKY74073 Dual-Band SPR Module Manufacturing Part Number SKY74073-13 Product Revision
Copyright (c) 2003, 2004 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 by the customer. Skyworks assumes no responsibility for errors or omissions in these materials. Skyworks may make changes to its documentation, 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 documentation, products, specifications and product descriptions. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by or under this document. Except as may be provided in Skyworks Terms and Conditions of Sale for such products, Skyworks assumes no liability whatsoever in association with its documentation, products, specifications and product descriptions. THESE MATERIALS ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED OR OTHERWISE, RELATING TO SALE AND/OR USE OF SKYWORKS 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 DAMAGES, INCLUDING SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THESE MATERIALS WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Skyworks products are not intended for use in medical, lifesaving or life-sustaining applications. Skyworks customers using or selling Skyworks 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.: Skyworks(R), the Skyworks logo, and Breakthrough Simplicity(R). Product names or services listed in this publication are for identification purposes only, and may be trademarks of Skyworks or other third parties. Third-party brands and names are the property of their respective owners. Additional information, posted at www.skyworksinc.com, is incorporated by reference.
Skyworks Solutions, Inc. * Phone [781] 376-3000 * Fax [781] 376-3100 * sales@skyworksinc.com * www.skyworksinc.com 2
November 29, 2004 * Skyworks Proprietary and Confidential information * Products and Product Information are Subject to Change Without Notice * 103073D

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