Broadcom. BCM4334 Single Chip Dual-Band Combo Wireless Connectivity Device. Circuit Analysis of Wi-Fi Transceiver

Transcription

1 Broadcom BCM4334 Single Chip Dual-Band Combo Wireless Connectivity Device Circuit Analysis of Wi-Fi Transceiver 1891 Robertson Road, Suite 500, Ottawa, ON K2H 5B7 Canada Tel: Fax:

2 Some of the information in this report may be covered by patents, mask and/or copyright protection. This report should not be taken as an inducement to infringe on these rights. Chipworks Inc all rights reserved. Chipworks and the Chipworks logo are registered trademarks of Chipworks Inc. This report is provided exclusively for the use of the purchasing organization. It can be freely copied and distributed within the purchasing organization, conditional upon the accompanying Chipworks accreditation remaining attached. Distribution of the entire report outside of the purchasing organization is strictly forbidden. The use of portions of the document for the support of the purchasing organization's corporate interest (e.g., licensing or marketing activities) is permitted, as defined by the fair use provisions of the copyright act. Accreditation to Chipworks must be attached to any portion of the reproduced information. CAR DYANBLJC Revision 1.0 Published: May 24, 2013

3 Overview Introduction Brief Design Overview Component Descriptions Device Summary References Figures To view, please click on the appropriate bookmark in the panel on the left Package Markings Bottom Die Markings Die Photograph Top Metal Die Photograph Polysilicon Die Architecture Schematics Top Level Diagram Receiver RX Front End Bias Bias Adjust Bias Adjust Bias Adjust Bias Adjust RF Rectifier Bias S_TRIGATE_18L0P7_18L1D Peak Detector Decoder Amplifier Amplifier Variable Cap Resistor RF Rectifier Bias Variable Resistor Amplifier 2

4 2.1.4 VS Generators Inverter VS Generators Inverter Mixer 5 GHz RF Amplifier Variable Cap Capacitor Capacitor Unused Unused Bias Bias Gilbert Quad Buffers RF Amplifier Unused Gilbert Quad Bias Voltage Decoder Amplifier Resistor Cap LNA 2.4 GHz Capacitor Control Unused Cap Resistor Decoder C Variable Cap Variable Cap Variable Cap Variable Cap C Variable Cap Buffers Transformer 2.4 GHz LNA 5 GHz

5 Resistor Decoder Unused Inverter Unused Decoder Transformer 5 GHz Bias Bias Adjust Bias Adjust Bias Adjust Bias Adjust Bias Adjust Bias Cap RF LNA BT RSSI 2.4 GHz Voltage Divider Buffers RSSI 5 GHz LNA ESD Bias Buffer Delay 3X RSSI Voltage Divider Reference Voltages Decoder Decoder Bias NMOS PMOS Control Inverters Mixer 2.4 GHz Bias Voltage S_TRIGATE_18L0P7_18L1P5D Bias Voltage Gilbert Quad S_TRIGATEF_9L0P7_9L2P5D8S Reference Voltage 1

6 S_TRIGATE_18L1P5_18L1P5D2S Amplifier Reference Voltage Decoder MUX RF Driver Unused Variable Cap RF Driver CTRL IQ Generator 5 GHz Averager Phase Shifter Bias Delay Delay Delay Delay LNA ESD RF Amplifier 5 GHz Capacitor Unused Resistor Logic Unused Decoder RF Amplifier 2.4 GHz Resistor Cap RC RC Cap C C C C Logic Decoder BP IF Filter Amplifier 1

7 Capacitor Amplifier Amplifier Bias Logic Decoder Decoder Decoder ADD Buffers Buffers Buffers Buffers Cap Resistor Amplifier NMOS Resistor R R R R R Resistor Cap Amplifier Amplifier Bias Logic Decoder Resistor Switches Cap Decoder Resistor C C C C RF Rectifier 3

8 Bias Buffers NMOS Shared IF Reference Voltages Decoder Buffers 66B Current Sources Current Source Current Source 2X Current Source Current Sink Current Sink 2X Current Source Current Source Control Logic Dummy Buffers Buffers 74B Filtering IF Control Decoder Control Buffers Decoder IF Amplifier Dummy Dummy Dummy Bias Generator Comparator Bias Generator Differential Amplifier Current Sink Current Sink X4_ Current Sink X2_ Current Sink X Amplifier Variable Capacitor Variable Capacitor Differential Amplifier 1

9 IF Amplifier Dummy Amplifier Current Sink Variable Capacitor Dummy Bias Generator Differential Amplifier IF Amplifier Dummy Dummy Amplifier Bias Dummy Comparator Dummy Variable Capacitor Bias Current Sink Current Sink 2X Current Sink 1X CM_RC Differential Amplifier Amplifier FB Dummy Dummy Dummy Dummy Differential Amplifier Bias Amplifier Bias Current Sink Amplifier Caps Cap 16X Cap Switch Cap 16X Cap 15X Buffers Resistors 1

10 Variable Resistor Variable Resistor Dummy Decoder Decoder Caps Cap 16X Cap Switch Cap 15X Buffers Decoder Control IF Amplifier Dummy Amplifier Differential Amplifier Dummy Variable Cap Variable Cap Amplifier Bias Dummy RC Network Variable Resistor Control Decoder MX21_4B_ Decoder Variable Resistor Control Programmable RC Variable Cap 15X Cap Switch Cap Switch Variable Resistor Variable Resistor Variable Resistor Dummy Variable Resistor Variable Resistor Dummy Variable Cap 16X

11 Cap Switch Variable Cap 15X Programmable RC Resistors R R Decoder Buffers RC Network Variable Resistor Control Variable Resistor Control Decoder Variable Capacitor Control Buffers Programmable RC Variable Resistor Variable Resistor Variable Resistor Dummy Variable Resistor Variable Resistor Variable Resistor Dummy Variable Cap 15X Variable Cap 15X RC Network Variable Resistor Control Variable Resistor Control Variable Resistor Control Programmable RC Variable Cap 20X Variable Cap 16X Cap Switch Variable Cap 15X Variable Cap 19X Variable Cap 2X Variable Resistor Variable Resistor Variable Resistor Variable Resistor 4

12 Variable Resistor Dummy Dummy Programmable RC Variable Capacitor 19X Resistors R Decoder Decoder Capacitors Variable Cap 12X Cap Switch Variable Cap 7X Resistors R R Control Decoder Control Decoder Decoder Switches Buffers IF Amplifier Amplifier Dummy Dummy Amplifier Bias Bias Comparator CM_RC Dummy RC Cell Variable Resistor Dummy LS Control Logic Switches Test Switches 1 IFO Switches 2 IFO

13 Switches FB Switches Test Filtering IF Sigma Delta ADCs Bias Circuits Dummy S_NAND2_9_ S_INV_9_4P5D Current PMOS PMOS Decoder Logic Voltage Generator Current PMOS PMOS PMOS Unused Current Current Currents Current NMOS NMOS NMOS Unused NMOS ADC CH Clock Circuit Data Process Buffers Path Decimation Counter Selector Switches Buffers Control Decoder

14 Buffers Control Divider Half Adder Half Adder DAC DAC Steering GS_INVF_7X2_ GS_INV_7_7D VT_NAND2F_7X2_7X Dummy Steering VT_INV_7_7D Loadings Dummy Control GS_INV_9X2_9X GS_INV_9X2_9X GS_INV_9_9D Dummy Switches Control DAC Loading DUMMY_ Steering Control VT_AND2_7_7D2S Dummy DAC Loading Dummy Control DAC Loading Control Bias VB Dummy

15 Current Path Control VB Dummy NMOS VB Dummy VB Dummy Bit Flash S_MX21F_4P5_2D Comparator Dummy Dummy Amplifier Dummy Reference Voltage th Order Integrator Amplifier Bias Dummy Amplifier Dummy Amplifier Dummy RC Network Capacitor Decoder Resistor Resistor Amplifier Bias Dummy Signal Detector Voltage Clamp RC Network Capacitor Resistor Resistor Resistor 3

16 Resistor Logic Inverters Decoder RC Network Capacitor Resistor RC Network Capacitor Decoder Resistor Resistor Voltage Clamp RC Filter Voltage Clamp Input Switches ADC CH bit Flash Dummy th Order Integrator Amplifier DAC DAC Loadings Control DAC Loadings Control VT_AND2_7_7D2S Dummy Bias Current Path Dummy DAC Control Loadings DAC Loadings Control ADC Clocks

17 Logic Buffers 32B Buffers 25B Control Logic Low Power ADCs Input Voltages Reference Voltages Amplifier Digitizer Driver Driver Driver Comparator Resistor Bias Comparator Driver Digitizer Comparator Digitizer Digitizer Comparator Bias Voltages Selector Decoder Input Voltages Reference Voltages Amplifier Digitizer Other Circuits Biasing Control Control Logic Control Logic Control Logic Dummy Inverters Buffers Buffers Buffers Buffers 4

18 Buffers Current Generator I Sink NMOS I Sink Dummy N I Sink Dummy P PMOS I Sink I Sink I Sink I Sink Reference Voltages Current Sink Adjustable Resistors Decoder Adjustable Resistors Adjustable Resistors Programmable Voltage Generator Programmable Voltage Generator Select Control Decoder Control Select Decoder Buffers Amplifier Transmitter Transmitter Bias Generator Bias Generator S_TRIGATE_9L0P7_9L0P7D Unused Bias Generator BUF_DLY7_ Bias Generator BUF_DLY5_ Bias Generator Bias Generator 6

19 Bias Generator Bias Generator Bias Generator Unused Bias Generator Bias Generator Bias Generator Bias Generator Unused Bias Generator Bias Generator TX Pad ESD Pre-Driver 5 GHz Buffers Buffers Voltage Generator Bias Generator Variable Capacitor Variable Capacitor Buffers Variable Capacitor Variable Capacitor Variable Capacitor Signal Reinforce Reinforcement 2X Reinforcement 8X Buffers Reinforcement Reinforcement 4X Unused Capacitor 3X Transformer Power Amplifier 2.4 GHz Voltage Generator S_TRIGATE_18X20_18X RF NMOS Unused S_INV_18L5_18L5D Tunable Filter Filter 1

20 Filter Filter Inverters Bias Generator Variable Resistor Voltage Generator Transformer Variable Capacitor Variable Capacitor IQ Generator 2.4 GHz Reinforced Inverters Voltage Generator S_TRIGATE_9L1X8_9L1X Buffers Bias Generator S_TRIGATE_18L1_9L1D Buffers Pre-Drive 2.4 GHz Variable Capacitor Variable Capacitor Buffers Variable Capacitor Variable Capacitor Signal Reinforce Reinforcement Reinforcement 2X Reinforcement 4X Reinforcement 8X Inverters Inverters Bias Generator Bias Generator NMOS Unused Peak Detector 2.4 GHz S_TRIGATE_36_18D Peak Detector 5 GHz Power Amplifier 5 GHz Voltage Generator S_TRIGATE_30L3P5X8_30L3X4

21 Buffers S_INV_18L5_18L5D4_ Voltage Generator NMOS Bias Generator Variable Resistor Control Logic Variable Capacitor Buffers Variable Capacitor Variable Capacitor Variable Capacitor Variable Capacitor TX Mixers TX Mixer 2.4 GHz Tunable Filter Filter Filter Filter Variable Resistor Variable NMOS Programmable Current Sink S_TRIGATE_36_36D Enabled Buffers Unused TX BB Driver Variable Resistor Variable Resistor Variable Capacitor Current Driver Current Source Switches TX Mixer 5 GHz Variable Resistor Programmable Current Sink S_TRIGATE_36P5_36P5D Enabled Buffers Tunable Filter Filter Filter 2

22 Filter Filter Current Sink Switch Current Sink Bias Generator Current Sink S_TRIGATEF_4_4D Current Sink Control Logic Buffers IQ Generator 5 GHz Amplitude Detector Bias Generator Common Source Amplifier Common Source Amplifier Common Source Amplifier Common Source Amplifier RC Phase Shifter Resistor TX DACs Resistor Chain DAC x8 Decoder Data Path Select Data Path Select Loading Variable Resistor Variable Capacitor Cascode Amplifier Dummy Bias Generator Bias Dummy Unit VCMR Detect Comparator ISRC_LOAD Bias Generator Control Inverters Current Mirror Current Sink Current Sink Current Sink 3

23 Current Sink Current Sink Clock Unit Data Process Data Transfer SEL_CONTROL_CELL Output Latches Input Latches Output Latches Data Calculation Logic Logic Logic Logic DAC Voltage Bias Generator Voltage Bias Switch Current Steering DAC Core DACs Common Output Switch Decoder DAC Data Select Control Buffers Buffers Frequency Synthesizer Clock Dividers Control Registers Clock Delay S_NAND2_4P5_4P5D S_NAND2_4P5_4P5D DYNDFC_ DYNDFN_ DYNDFC_ DYNDTC_ S_AND2_4P5X16_4P5X DYNDTC_ DYNDFC_ Clock Drivers S_INV_4P5X8_4P5X Control Registers Counter

24 4.2.0 VCO Programmable Capacitors S_TRIGATE_18L1_18L1D S_TRIGATE_18L1_18L1D Voltage Generator S_TRIGATE_36L1_18L1D RC Circuit RC Cell RC_CELL_3S RC Cell Voltage Generator S_TRIGATE_36P5L1_18L1D S_TRIGATE_36L1_36L1D Resistor Divider Decoder Current Sink Amplifier S_TRIGATE_36L1_18L1D4S Programmable Capacitors S_TRIGATE_18L1_18L1D2S S_TRIGATE_18L1_18L1D4S S_TRIGATE_45L1X6_45L1X S_TRIGATE_45L1X20_45L1X Phase Frequency Detector S_DFC_19L0P7_9P5L0P7D8S S_NAND2_E11L1_11L0P7X S_TRINOT14_6L0P7_6P5L0P7D S_TRIGATE_11L0P7_11L1D S_NAND2_7L0P7_6P5L0P7D S_TRIGATE_11L0P7_6P5L0P7D S_INV_19L0P7_9P5L0P7D S_TRIGATE_11L0P7_6P5L0P7D2S Data Clock Selector S_MX21_9L0P7X20_9L0P7X S_INV_9L0P7_9L0P7D S_TRIGATE_9L0P7_9L0P7D S_INV_9L0P7X20_9L0P7X S_DFNF_4P5X8_4L1P3X S_TRINOT14_3_ S_INV_4P5L0P7X12_3L1P5X4

25 S_TRIGATE_3L1P5X16_5P5L2P5X S_INV_4P5L0P7X8_4L1P3X S_TRIGATE_4_ Clock Delay S_TRIGATE_18_15P5D S_INV_15_10D S_TRINOT14_E20_ BUF_DLY4_ Unused Control Logic Delay PFD Buffers S_DFC_19L0P7_9P5L0P7D Programmable Driver Logic PAD_ S_NMOSS2_X S_NMOSS2_X Charge Pump Current Sink Buffers Variable Resistors S_TRIGATE_9L1_9L1S S_TRIGATE_3L1_3L1S Amplifier Voltage Detector Comparator Resistor Divider PN Bias MUX MUXs Decoder Comparator Current Sources Buffers S_TRIGATE_9L1X8_9L1X4S Variable Capacitors Control Buffers Variable Resistors S_TRIGATE_45L1X24_45L1X Programmable Current Source

26 Amplifier S_TRIGATE_23X20_23X Variable Resistors S_TRIGATE_9L1_9L S_TRIGATE_3L1_3L Switch S_TRIGATE_36L0P7_18L0P7D Variable Resistors Programmable Current Sink Control Logic BUF_DLY BUF_DLY5_ RC Filter Variable CAPS Buffers Variable CAPS Variable Resistors S_TRIGATE_45L1X21_45L1X7S Variable CAPS PAD_1S PAD_1S Reference Clock S_SMINV_9_9D S_INVF_18L5X4_18L5X Pulse Generator BUF_DLY6_ S_INV_18L5_9L BUF_DLY4_ BUF_DLY Comparator Logic Logic Cell Logic Cell S_TRINOT14_11L1_5P5L1D S_TRINOT14_11L1_5P5L1D S_TRINOT14_11L1_5P5L1D S_INV_11L1_5P5L1D S_TRINOT14_11L1_5P5L1D Logic Cell Logic Cell 1

27 S_MX21F_18L0P7_9L0P7D S_TRINOT14_18L0P7_9L0P7D S_TRINOT14_E18L6_E9L Control Circuit S_TRIGATE_36L9X3_36L S_TRIGATE_36L2P5_36L2P5D Control Select Circuit S_TRINOT14_45L1_18L1D S_TRINOT14_45L1_18L1D S_TRINOT14_45L1_18L1D16S S_TRINOT14_45L1_18L1D32S S_TRINOT14_45L1_18L1D64S Control Logic S_TRINOT14_45L1_18L1D Control Select Circuit S_TRINOT14_45L1_18L1D S_TRINOT14_45L1_18L1D S_TRINOT14_45L1_18L1D Control Logic Select Buffers Clock Buffers BUF_DLY24_ S_TRINOT14_45L1_18L1D Variable Capacitors Buffers UNUSED_ Clock Drivers Amplifier Clock Frequency Selector DYNDFC_ DYNDFN_ Control Select Divider DYNDTC_ DYNDFC_ DYNDFN_ Driver Control Logic S_INVF_4P5X12_4P5X Comparator

28 S_INV_11_4P5D S_INV_11_4P5D Comparator S_INV_7P5_3D Clock Frequency Selector S_TRINOT14F_3X5_3X Driver S_INV_3L0P7X10_3X S_INV_3X6_3X S_INV_3X14_3X Flip-Flop S_TRINOT14_3X9_3X Amplifier ADJ_CAP_ BUF_4B_ S_TRIGATE_18L1_18L1D Mixer ADJ_CAP_18S Current Sink Amplifier Amplifier Variable Caps S_TRIGATE_9L0P7_9L0P7D Amplifier VCO Amplifier Power Management Internal Supply Generator Programmable Resistors Current Sink Voltage Bias S_TRIGATE_9L2P5X2_9L2P5X Amplifier Differential Amplifier Unused PCASCX Unused Current Sources Top Current Sources 2

29 5.2.2 Current Source Current Source Bandgap Generator Current Source Amplifier Current Source S_TRIGATE_36L2P5_36L2P5D Inverters Control Logic Control Logic Amplifier Current Sources Current Source Unused Current Source Current Sources Current Sources Current Sources Unused Current Sources PAD_1S PAD_ S_NMOSS2_X Internal Supply Generator VINT Amplifier Variable Resistors Decoder INVF_D6S Internal Supply Generator VINT Current Sink Voltage Divider S_BUFDIF_5P5L2P5_6P5L2P5X PAD_1S PAD_1S Internal Supply Generator VINT Current Sink Internal Supply Generator VINT Amplifier Amplifier Voltage Bias

30 Enable Control Unused Control Circuit Counter Circuit S_HADD_3_E S_HADD_E3_ S_HADD_3_ S_BUFDIF_3L2P5_3L2P S_INV_3L2P5_3L2P Differential Amplifier Bandgap Generator BG Amplifier BG Amplifier S_TRIGATE_54P5L0P7_18L0P7D PAD_ PAD_1S Registers Select Circuit Voltage Generators Op-Amp S_TRIGATE_18X4_18X Op-Amp Variable Resistors Current Bias Level Shifter Voltage Amplifiers Op-Amp S_TRIGATE_13P5_9D Op-Amp Voltage Reference Decoder Programmable Resistors S_TRIGATE_36P5X12_36P5X Programmable Resistors Variable Current Bias Driver Op-Amp Variable Capacitor Voltage Generator Select Circuit MUX

31 INVDIF Differential Amplifier Control Logic Decoder Voltage Reference Generator Counter S_HADDF_2_1P S_HADDF_4P5_1P S_HADDF_4P5_ Buffers Comparator Voltage Generator and Bias Reference Voltage Divider Decoder Current Source Amplifier Voltage Divider Decoder Voltage Divider MUXs Counter Combinational Logic Logic Buffers Frequency Dividers Unused Frequency Divider S_HADDF_2_1P5S S_HADDF_2_1P5S S_HADDF_4P5_1P5S S_HADDF_4P5_1P5S Clock Divider VCO Control Logic BUF_DLY Control Logic Clock Divider Control Logic BUF_DLY S_INV_6L11_4L11

32 Control Logic Control Logic BUF_DLY10S Frequency Divider BUF_DLY S_HADDF_2_1P5S BUF_DLY Clock Generator Clock Divider POWERCAP MUXs BUF_DLY5_ BUF_DLY6_ Clock Circuits Programmable Oscillator Programmable Capacitors Cap Cell X Cap Cell X Programmable Capacitors Programmable Capacitors P Cap Buffers Programmable Capacitors Programmable Capacitors Cap Cells Cap Cell X CAPCELLX1S Cap Cell X Cap Cells Cap Cell X Cap Cell X Cap Cell X Cap Cell X Cap Cells Logic CTL Switch Select Decoder S_INVDIF_9P1_9X Bandgap Generator

33 Amplifier Oscillator Bandgap Generator Amplifier Control Logic B Pre-Driver Logic Driver Current Sources Current Sink Current Cell S_TRIGATE_18L1_18L1D32S Current Cell Variable Current Source Current Cell Control Buffers Buffers S_TRIGATE_18L1_18L1D ESD Unanalyzed Digital Control Logic A Control Logic Control Logic Decoder Cell Library About Chipworks

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