Axiom AX502 GSM/GPRS CMOS Power Amplifier Circuit Analysis For questions, comments, or more information about this report, or for any additional technical needs concerning semiconductor technology, please call Sales at Chipworks. 3685 Richmond Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: 613.829.0515 www.chipworks.com
Axiom AX502 GSM/GPRS CMOS Power Amplifier Table of Contents Overview Schematics Cell Library Signal Cross-Reference List Report Evaluation
Axiom AX502 GSM/GPRS CMOS Power Amplifier Overview List of Figures... Page 1 List of Schematics... Page 1 Introduction... Page 7 Brief Design Overview... Page 8 Component Descriptions... Page 12 Device Summary Sheet... Page 14
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 1 List of Figures To view, please click on the appropriate bookmark on the left. 0.1.1 Package Markings 0.1.2 Package X-Ray 0.1.3 Die Markings 0.2.0 Die Photograph Top Layer 0.2.1 Annotated Die Photograph 0.2.2 Die Photograph Metal 4 Layer 0.2.3 Die Photograph Metal 2 Layer 0.2.4 Die Architecture List of Schematics 1.0.0 Top Level Diagram 2.0.0 DCS/PCS Band PA Core 2.1.0 Primary Driver Core 2.1.1 Driver Circuit 2.1.2 Current Reference 2.1.3 Internal Voltage Reference 2.1.4 Bias Generator 2.2.0 Primary Driver Core 2.2.1 Driver Circuit 2.2.2 Current Reference 2.2.3 Internal Voltage Reference 2.2.4 Bias Generator 2.3.0 Driver Circuit 2.3.1 Current Reference 2.3.2 Internal Voltage Reference 2.3.3 Bias Generator 2.4.0 Second Primary Driver Core 2.4.1 Driver Circuit 2.4.2 Voltage Reference Generator
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 2 2.5.0 Second Primary Driver Core 2.5.1 Driver Circuit 2.5.2 Voltage Reference Generator 2.6.0 Primary Driver Core 2.6.1 Second Primary Driver Core 2.6.2 Driver Circuit 2.6.3 Voltage Reference Generator 2.7.0 HBIN Input Buffer 2.7.1 HBIN Input Buffer 2.7.2 HBIN Input Buffer 2 2.7.3 HBIN ESD 2.7.4 Parallel Load 2.7.5 Dummy Circuit 2.8.0 Voltage Reference 3.0.0 850/GSM Band PA Core 3.1.0 Primary Driver Core 3.1.1 Driver Circuit 3.1.2 Current Reference 3.1.3 Internal Voltage Reference 3.1.4 Bias Generator 3.2.0 Primary Driver Core 3.2.1 Driver Circuit 3.2.2 Current Reference 3.2.3 Internal Voltage Reference 3.2.4 Bias Generator 3.3.0 Primary Driver Core 3.3.1 Driver Circuit 3.3.2 Current Reference 3.3.3 Internal Voltage Reference 3.3.4 Bias Generator 3.4.0 Primary Driver Core 3.4.1 Driver Circuit
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 3 3.4.2 Current Reference 3.4.3 Internal Voltage Reference 3.4.4 Bias Generator 3.5.0 Second Primary Driver Core 3.5.1 Driver Circuit 3.5.2 Voltage Reference Generator 3.6.0 Second Primary Driver Core 3.6.1 Driver Circuit 3.6.2 Voltage Reference Generator 3.7.0 Second Primary Driver Core 3.7.1 Driver Circuit 3.7.2 Voltage Reference Generator 3.8.0 Second Primary Driver Core 3.8.1 Driver Circuit 3.8.2 Voltage Reference Generator 3.9.0 LBIN Input Buffer 3.9.1 LBIN Input Buffer 3.9.2 LBIN ESD 3.10.0 Voltage Reference 4.0.0 RF Detector 4.1.0 HBOUT RF Detector 4.1.1 Programmable Capacitor 4.2.0 RF Detector 4.2.1 Transconductance Amplifier 4.3.0 LBOUT RF Detector 4.3.1 Programmable Capacitor 4.4.0 RF Detector 4.4.1 Transconductance Amplifier 4.5.0 Inverter 4.6.0 Level Shifter 4.7.1 Programmable Resistors 4.7.2 Switch
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 4 4.8.1 Programmable Resistors 5.0.0 Control Logic 5.1.0 ESD Protection 5.2.0 TXENA ESD Protection 5.3.0 DA Buffer 5.3.1 DA ESD Protection 5.3.2 MUX 5.4.0 Unused MUXes 5.6.0 Unused Logic 5.6.1 Shift Register 5.6.2 Shift Register Cell 5.6.3 Digital Control Cell 5.6.4 Logic Cell I 5.6.5 Logic Cell II 5.6.6 Logic Cell III 5.6.7 Logic Cell IV 5.6.8 Logic Cell V 6.0.0 Power Control 6.1.0 Level Shifters 6.2.0 Current Reference Generator 6.2.1 Control Input Buffers 6.2.2 Internal Current Generator 6.2.3 Differential Amplifier 6.2.4 Current Bias Generator 6.2.5 Programmable Current Source 6.2.6 Current Sources 6.2.7 Current Sources 6.2.8 Current Sources 6.2.9 Current Sources 6.2.10 Current Sources 6.2.11 Current Source Bias Voltage Generator
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 5 6.3.0 Integrator 6.3.1 Voltage Bias Generator 6.3.2 Differential Amplifier 6.3.3 Voltage Reference 6.3.4 MUX 6.3.6 Programmable Current Generator 6.3.7 Bias Voltage Generator 6.3.8 Differential Amplifier 6.3.9 Buffer Amplifier 6.3.10 Programmable Resistor 6.3.11 Level Shifters 6.3.12 Differential Amplifier 6.3.13 Differential Amplifier 6.3.14 MUX 6.3.15 Digital Control 6.3.16 Passgate 6.3.17 Passgate 6.3.18 Passgate 6.3.19 Pass Gate 6.4.1 Reference Generator 6.4.2 Programmable Voltage Selector 6.4.3 Switch Cell 1 6.4.4 Switch Cell 2 6.4.5 Switch Cell 3 6.4.6 Differential Amplifier 6.5.0 Internal Supply Generator 6.5.1 Programmable Reference Circuit 6.5.2 Bias Generator 6.5.3 Bias Generator 6.5.4 Current Source Load 1 6.5.5 Current Source Load 2 6.5.6 Current Source Load 3 6.5.7 Current Source Load 4
Axiom AX502 GSM/GPRS CMOS Power Amplifier Page 6 6.5.8 Current Source Load 5 6.6.0 HBIN LBIN Buffer Control 6.7.0 Constant Current Bias Generator 6.7.1 Programmable Current Source Load 6.7.2 Current Bias Generator 6.7.3 Local Voltage Generator 6.8.0 Internal Supply Generator 2 6.8.1 Programmable Reference Circuit 6.8.2 Bias Generator 6.8.3 Bias Generator 6.8.4 Current Source Load 1 6.9.0 Unused Voltage Comparator 6.9.1 Differential Amplifier 6.9.2 Level Shifters 6.9.3 Level Shifters 6.9.4 Programmable Current Source Load 1 6.9.5 Programmable Current Source Load 2 6.10.0 Unused Circuitry 6.10.1 Unused Circuit 6.10.2 Unused Circuit 7.0.0 Dummy Components 7.1.1 Delay Chain 7.1.2 Pass-gate
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