Introducing the Si2170: Highest Performance, Hybrid TV Tuner June 2009

2 Decade of Innovation in Mixed-Signal CMOS RF ICs RF Synthesizer GSM/GPRS EDGE RF Transceiver DVB-S/DSS Satellite TV Receiver FM Radio Receiver AeroFONE single-chip GSM phone DVB T/C DTV Demod EZRadioPRO Wireless Receivers Hybrid TV Tuner 1999 Silicon Labs Single-chip RF solutions in Standard CMOS 2009  State-of-the-art design expertise  Patented, high performance digital low-IF receiver architecture  Core intellectual property in LNAs, mixers, VCOs, PLLs, ADCs, DSP, demodulation  Single-chip integration of complex mixed-signal functions  Digital-intensive architectures displace discrete and analog IC solutions  Innovation in standard CMOS enables integration without performance compromises  Standard CMOS manufacturing flow leverages Moore’s law  Eliminates external components to reduce system cost and complexity  Improves yield, reliability and manufacturability  Proven track record  More than 1 billion CMOS RF ICs sold

3 TV Tuners—Ripe for Innovation  RF front end has resisted integration due to performance  Previous attempts could not match the performance of traditional discrete tuners and hybrid iDTVs increase performance challenges  To date, silicon tuners only successful in less strenuous set-top box and PC-TV applications, discrete tuners still used in iDTV for highest performance  Catalysts for change include  Transition from analog to hybrid creates additional complexity and cost  Continuous pressure to reduce system and manufacturing costs  Slimmer TV form factors creating space constraints

4 Introducing the Si2170 Hybrid TV Tuner  Addresses worldwide TV tuner market  Hybrid (analog & digital), terrestrial & cable  Supports ATSC/QAM, DVB-T/C and ISDB-T/C  NTSC/PAL/SECAM analog TV demodulator  Highest performance  Superior picture quality and better reception for both analog and digital broadcasts  Industry leading integration results in lowest bill of materials  Eliminates hand/manual tuning & calibration  Simplifies design and manufacturing  Tiny form factor enables slimmest TVs  Standard CMOS enables path to full receiver integration 2.2 cm 2 Si2170 Hybrid TV Tuner with ATV Demod Hybrid TV tuner delivers highest performance and lowest system cost

5 iDTV System Overview Hybrid Full NIM (Receiver) Si2165 DTV DEMOD DTV TUNER ATV TUNER ATV DEMOD Si2170 = Silicon Labs Products

6 Si2170: 10x PCB Area Savings 2.2 cm 2 1/10 th the PCB area Si2170 Analog TV Demod Hybrid MOPLL Traditional discrete tuner 25 cm 2 IF SAWs (3x) Custom traces (RF design) Si2170 replaces:  3 SAW filters  3 LNAs  3 tracking filters  1 ATV demod IC  1 MOPLL IC  14 trimmed coils  200 R,L,C, transistors  90% of PCB area  Complex shield design & cost Trimmed coils

7 Hybrid Receiver Roadmap  Full receiver integration delivers performance and cost benefits  Optimized channel filtering, fast scan, AGC, synchronization  Tuner uses information from demod to adapt to various reception conditions  Enables future system cost reductions, footprint reductions  Enables universal, cost-optimized, worldwide SoC  Leverages CVBS/SIF + TS which are standard/universal interfaces  Modular HW & SW design (worldwide SoC SW stack)  Simplifies customer design by eliminating the need for multiple region-stack specific SoC versions Universal Source (MPEG) Decoder/ Host Processor Hybrid Receiver Other Receivers TS CVBS/ SIF TS SoC Hybrid TV Tuner ATV Demod DTV Demod Full CMOS Implementation