Skyworks Solutions, Inc. Proprietary Information 1 100956E 781 376-7000 FAX 781 376-3100 SALESSKYWORKSINC.COM WWW.SKYWORKSINC.COM SEPTEMBER 19, 2003 DATA SHEETDATA SHEETDATA SHEETDATA SHEET CX77301: PA Module Dual-band EGSM900 DCS1800 / GPRSAPPLICATIONSAPPLICATIONSAPPLICATIONSAPPLICATIONS Dual-band cellular handsets encompassing - Class 4 EGSM900, - Class 1 DCS1800 - up to Class 10 GPRS multi-slot operation. FEATURESFEATURESFEATURESFEATURES High efficiency - EGSM 55% - DCS 50% Input/output matching - 50 internal Small outline 9.1 mm x 11.6 mm Low profile 1.5 mm maximum Low APC current 10 A typical The CX77301 is a dual-band Power Amplifier Module (PAM) designed in a compact form factor for Class 4 EGSM900 and Class 1 DCS1800 operation that also supports multi-slot transmission for Class 10 General Packet Radio Service (GPRS) operation. The module consists of an EGSM900 PA block, a DCS1800 PA block, impedance matching circuitry for 50 input and output impedances, and bias control circuitry. Two separate Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated on a single Gallium Arsenide (GaAs) die. One PA block operates in the EGSM900 band and the other PA block supports the DCS1800 band. Optimized for lithium ion battery operation, both PA blocks share common power supply pins to distribute current. A custom CMOS integrated circuit provides the internal interface circuitry, including a current amplifier that minimizes the required power control current (IAPC) to 10 A, typical. The GaAs die, the Silicon (Si) die, and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold. The RF input and output ports are internally matched to 50 to reduce the number of external components for a dual-band design. Extremely low leakage current (2 A, typical) of the dual PA module maximizes handset standby time. The CX77301 also contains band- select switching circuitry to select EGSM (logic 0) or DCS (logic 1) as determined from the Band Select (BS) signal. In the Functional Block Diagram shown below, the BS pin selects the PA output (DCS OUT or EGSM OUT) while the Analog Power Control (APC) controls the level of output power.CMOS Bias ControllerEGSM INEGSM OUT DCS INDCS OUT Power ControlBand SelectHBTMatchMatchMatchMatch100956_001Figure Figure Figure Figure 1 1 1 1. Functional Block Diagram. Functional Block Diagram. Functional Block Diagram. Functional Block Diagram Data Sheet CX77301 PA Module for Dual-band EGSM900 DCS1800 / GPRS 2 Skyworks Solutions, Inc. Proprietary Information SEPTEMBER 19, 2003 781 376-7000 FAX 781 376-3100 SALESSKYWORKSINC.COM WWW.SKYWORKSINC.COM 100956E ELECTRICAL SPECIFICAELECTRICAL SPECIFICAELECTRICAL SPECIFICAELECTRICAL SPECIFICATIONSTIONSTIONSTIONS The following tables list the electrical characteristics of the CX77301 Power Amplifier. Table 1 lists the absolute maximum ratings and Table 2 shows the recommended operating conditions. Table 3 shows the electrical characteristics of the CX77301 for EGSM and DSC modes. A typical CX77301 application diagram appears in Figure 2. The CX77301 is a static-sensitive electronic device and should not be stored or operated near strong electrostatic fields. Detailed ESD precautions along with information on device dimensions, pin descriptions, packaging and handling can be found in later sections of this data sheet.Table Table Table Table 1 1 1 1. Absolute Maximum Ratings. Absolute Maximum Ratings. Absolute Maximum Ratings. Absolute Maximum Ratings ParameterParameterParameterParameter MinimumMinimumMinimumMinimum MaximumMaximumMaximumMaximum UnitUnitUnitUnit Input power (PIN) 15 dBm Supply voltage (VCC), standby, VAPC 0.3 V 7 V Control voltage (VAPC) 0.5 VCC_MAX 0.2 (See Table 3) V Storage Temperature 55 +100 C Table Table Table Table 2 2 2 2. CX77301 Recommended Operating C. CX77301 Recommended Operating C. CX77301 Recommended Operating C. CX77301 Recommended Operating Conditionsonditionsonditionsonditions ParameterParameterParameterParameter MinimumMinimumMinimumMinimum TypicalTypicalTypicalTypical MaximumMaximumMaximumMaximum UnitUnitUnitUnit Supply Voltage (VCC) 2.9 3.5 4.8 V(1) V Supply Current (ICC) 0 2.5(1) A Operating Case Temperature (TCASE) 1-Slot (12.5% duty cycle) 20 100 2-Slot (25% duty cycle) 20 90 3-Slot (37.5% duty cycle) 20 75 4-Slot ( 50% duty cycle) 20 60 C (1) For charging conditions with VCC 4.8 V, derate ICC linearly down to 0.5 A max at VCC = 5.5 V PA Module for Dual-band EGSM900 DCS1800 / GPRS Data Sheet CX77301 Skyworks Solutions, Inc. Proprietary Information 3 100956E 781 376-7000 FAX 781 376-3100 SALESSKYWORKSINC.COM WWW.SKYWORKSINC.COM SEPTEMBER 19, 2003 T T T Table able able able 3 3 3 3. CX77301 Electrical Specifications. CX77301 Electric