Broadcom. BCM20791 Near Field Communications Controller from BCM Circuit Analysis of Analog Blocks

Transcription

1 Broadcom BCM20791 Near Field Communications Controller from BCM20793 Circuit Analysis of Analog Blocks 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 DYMC Revision 1.0 Published: June 13, 2013 Revision 2.0 Published: August 2, 2013

3 Overview Introduction Brief Design Overview Component Descriptions Device Summary Figures To view, please click on the appropriate bookmark in the panel on the left BCM20793 Package Markings BCM20793 Package X-Ray BCM20793 Pin Configuration BCM20791 Die Markings BCM20791 Die Photograph Top Metal Layer BCM20791 Die Photograph Pinout BCM20791 Die Photograph Polysilicon Layer BCM20791 Die Architecture Schematics Top Level Diagram NFC Receiver V2G2_INV_3_ V2G2_BUF_4_3D V2G2_INV_4_2D V2G2_INV_4_3D NFC Data Recovery Circuit V2G2_BUF_4_3D V2G2_INV_4_ V2G2_INV_4_3D V2G2_INV_5_4D V2G2_BUF_5_4D V2G2_INV_5_4D V2G2_INV_5_4D V2G2_BUF_5_4D V2G2_INV_4_4D V2G2_INV_5_4D M_RS_5_3P5D M_INV_5_3P5D M_INV_5_3P5D4

4 Amplifier V2G2_INV_5_4D Amplifier Variable Capacitor V2G2_INV_4_3D Variable Resistors M_RS_5_3P5D M_INV_5_3P5D V2G2_INV_5_4D Variable Capacitor Programmable Resistors V2G2_INV_4_4D V2G2_OR2_3_ V2G2_NOR2_2_ V2G2_INV_3_ Programmable Resistors Comparator V2G2_INV_5_3D V2G2_BUF_5_4D V2G2_INV_5_4D M_INV_11_ V2G2_DFN_4_4D V2G2_TRINOT14_2_ V2G2_TRINOT14_2_ V2G2_TRIGATE_3_ Amplifier V5G2_AND2_6_4_L V5G2_NAND2_6_4_L M_TRIGATE_90X40_90X10_L Control V5G2_OR2_5_4_L V5G2_NOR2_8_4_L V5G2_INV_5_4_L Decoder V5G2_INV_11_8_L V5G2_AND3_6_4_L V5G2_NAND3_6_4_L V5G2_MX21_6_4_L V5G2_TRINOT14_11_5_L M_PGRES_3S1

5 V5G2_TRIGATE_45_11D8_L V5G2_TRIGATE_45_11D4_L V5G2_INV_6_4_L Programmable Current Sink V5G5_TRIGATE_90_90D2_L Demodulator V5G5_INV_6_4_L V5G5_TRIGATE_90_90_L Amp Amp Variable Capacitors V5G5_TRIGATE_23X6_23X3_L V5G5_TRIGATE_23X12_23X6_L V5G5_TRIGATE_23X24_23X12_L V5G5_TRIGATE_23X3_23X2_L Variable Resistors V5G5_TRIGATE_45_45D8_L M_CMFB_AMPS M_AMP_ Decoder V5G5_AND4_6_4_L V5G5_NAND4_E9_4_L V5G5_INV_11_8_L Variable Resistors Variable Resistors Variable Resistors Variable Resistors Mixer Variable Resistors Variable Resistors DUMMY_BUF_4_3D DUMMY_INV_4_3D DUMMY_INV_4_3D BUFLSF_3P5X2_ VSGS_INV_8L5_4L6P VSGS_INV_4L5X2_4P5L VSGS_INV_3P5X2_ VSGS_INV_3P5_3P Decoder V5G8_INV_6_4_L2

6 2.8.2 V5G8_AND4_6_4_L V5G8_NAND4_E9_4_L V5G8_AND2_6_4_L V5G8_NAND2_6_4_L V5G8_OR2_5_4_L V5G8_NOR2_8_4_L V5G8_INV_5_4_L Programmable Driver Latch S_INV_22X4_22X2_L S_INVF_36L9X2_36L S_INV_36L3P5X2_36L S_INV_36L36_9L Programmable Driver LATCH_ S_INV_22X4_22X2_L3S S_INVF_36L3P5X2_36L S_INVF_36L9X2_36L5S S_INV_36L36_9L9S SWITCH_ Buffers V5G1_INV_6L5_4L6P BUFLSF_21L4_9L5D VSGS_INV_5L5_5L6P VSGS_INV_3P5X4_ VSGS_INV_21L4_9L5D V5G1_INV_11L5_8L6P5D SWITCH_23L4X8_23L6X S_TRIGATE_23L4X8_23L6X Control Circuit V5G5_OR2_5_4_L V5G5_NOR2_8_4_L V5G5_INV_5_4_L V5G5_AND3_6_4_L V5G5_NAND3_6_4_L V5G5_AND2_6_4_L V5G5_NAND2_6_4_L V5G5_OR3_5_4_L V5G5_NOR3_8_4_L Signal Detector

7 V5G5_TRIGATE_90L4_45L6D Amplifier Amplifier Amplifier Resistor String DAC V5G5_MXA21_9_9_L V5G5_TRIGATE_9_9_L Current Bias Comparator S_INV_9_9_L3S SMINV_18L9_9L Variable Caps Variable Caps S_TRIGATE_4P5X6_4P5X3_L S_TRIGATE_4P5X12_4P5X6_L S_TRIGATE_4P5X3_4P5X2_L Switch Control Circuit Decoder 2 Bit V5G5_NOR3_11_4_L V5G5_NAND4_5_E7_L Current Bias Programmable Current Source Pull-Up VOLGEN_ V2GS_INV_17L1_17L1D Clock Divider V2G2_NAND2_3_E V2G2_DFC_4_4D V2G2_TRIGATE_3_ V2G2_NAND2_3_ V2G2_NAND2_E4_E V2G2_TRIGATE_4_ V2G2_DFC_4_ V2G2_NAND2_2_ V2G2_NAND2_3_ V2G2_TRIGATE_2_ V2G2_NAND3_3_ Unused DUMMY_INV_11_8_L2

8 DUMMY_DFC_9_6_L DUMMY_TRIGATE_4_4_L DUMMY_NAND2_4_4_L DUMMY_INV_9_6_L DUMMY_NAND2_E5_4_L DUMMY_TRINOT14_4_4_L DUMMY_INV_6_4_L DUMMY_NAND3_6_E6_L Antenna Driver Driving Amplifier Voltage Generator Comparator Waveform Shaper Amplifier Amplifier S_INV_22_11_L Variable Capacitors S_TRIGATE_18L2P5X3_18L2P5X S_TRIGATE_18L2P5X6_18L2P5X S_TRIGATE_18L2P5X12_18L2P5X S_TRIGATE_18L2P5X24_18L2P5X Programmable Current Bias Programmable Current Bias SWITCH_ Programmable Current Bias Current Voltage Bias Decoder Decoder Driving Amplifier Programmable N Bias Programmable P Bias D/A Converter S_INV_9_6_L FLIP_FLOP FF AMP_ Amp Cell VBIAS_ S_TRIGATE_45_18X2_L3

9 3.6.8 S_INV_9_9_L3S V Bias Generator Variable Resistors Variable Resistor Variable Resistor TXRX Controller Level Shifters Current Bias Bandgap Generator Bandgap Amplifier Differential Amplifier Current Selector Decoder Switches Control Circuit NFC Energy Harvesting Circuit NFC Energy Harvesting Cell S_INV_13_6_L Regulator Controller NFC Energy Antenna Signal Detector Control Buffers Decoder NFC Energy Harvesting Circuit and Controls S_TRIGATE_36L2P5X2_36L2P Control Circuit Comparator Voltage Dividers Voltage Bias and Reference S_INV_3P5_3P5_L Voltage Test Switch S_TRIGATE_36L4P5_18L6D Unused Control Circuit Counter SWITCH_90L4P5_45L6D S_TRIGATE_90L4P5_45L6D Latch

10 Control Circuit Voltage Bias and Reference Bandgap Generator Bandgap Amplifier Programmable Caps Current Bias Differential Amplifier Control RS NFC Harvesting Energy Circuit Amplifier S_TRIGATE_270L2P5_270L2P S_TRIGATE_3P5L4P5_3P5L Programmable Capacitors S_TRIGATE_36L4_36L5D Voltage Reference Generator S_TRIGATE_45L2P5_45L2P Shunt Transistors Control Circuit Voltage Divider Switched Capacitors S_TRIGATE_36L4_36L Unused Test Switches SWITCH_90L4_45L6D S_TRIGATE_90L4_45L6D SWITCH_36L4_18L6D S_TRIGATE_36L4_18L6D Control Buffers Control Buffers NFC Antenna Signal Detector Comparator Voltage Detectors Comparator S_INV_3P5X2_3P5L S_INV_3P5_3P5L ADJCAPRES_ DEC_3B_ ADJCAPRES_1S Control SWITCH_36L4_18L6D2S1

11 SWITCH_18L6_18L6D Control A Variable Capacitors S_TRIGATE_3P5_3P5L Decoder Variable Capacitors Divider Antenna Signal Detector Amplifier Amplifier S_INV_18L9_9L Oscillator Comparator Programmable Capacitors Clock Generator Voltage Detector SWITCH_90L4_45L6D2S Control Buffers Control Circuit Voltage Controlled Oscillator Clock Path S_DTC_6_4_L VCO SWITCH_18L6_18L6D2_ Voltage Generator Programmable Capacitors Decoder S_DTN_6_4_L Control Frequency Synthesizer Clock Input Path Clock Pad ESD Clock Pad ESD Clock Pad Bias Current Clock Boosting Circuit Local Bias Generator Boost Control Delay Buffer x Clock Multiplexor

12 Level Shifter Clock Buffering Adjustable Strength Clock Driver Adjustable Strength Clock Driver Adjustable Strength Clock Driver Selectable Delay Clock Buffer Delay Buffer x Control Logic Phase Locked Loop Phase Frequency Detector Delay Buffer x Charge Pump Voltage Amplifier Current Driver Current Driver Current Driver Local Bias Generator Voltage Controlled Oscillator VCO Bandgap Voltage Reference Differential Amplifier Differential Amplifier Bias VCO Programmable Resistance VCO Bias Current Generator VCO Bias Current Generator Adjustable Capacitance Signal Buffers Clock Divide and Latch Clock Divide and Select Clock Logic Control Clock Logic Latches Local Reference Voltage Voltage Comparator Local Voltage References Clock Input Buffer and Divider Clock Selection Buffer Internal Clock Generator Clock Generator Amplifier Local Bandgap Reference Differential Amplifier

13 7.4.2 Schmitt Trigger Clock Divider with Select Output Clock Divider Bandgap Reference Comparison Bandgap Reference Amplifier Differential Comparator Counter and Logic Bit Counter P25 Input Path P25 ESD Schmitt Trigger Schmitt Trigger Pulse Generator Digital Logic Cell to-1 Multiplexer Digital Logic Cell Pad ESD Pad ESD Decoupling Capacitors Internal Supply Generators Bandgap Voltage Generator Bandgap Amplifier Analog Inverter Programmable Voltage Reference Generator Reference Generator Amplfier to-8 Decoder Reference Voltage Generator Voltage Comparator VINT3 Internal Supply Generator Voltage Amplifier to-8 Decoder Bandgap Bias Current Generator Bandgap Voltage Amplfier Bandgap Voltage Amplifier Bit Resistor String DAC to-8 Decoder Bit Resistor String DAC Parallel Current Drivers (x48) Parallel Current Drivers (x12)

14 8.3.7 Parallel Current Drivers (x24) Parallel Current Drivers (x20) Resistor String Voltage Generator VDD5 Internal Voltage Generator Voltage Amplifier Voltage Amplifier Bias Voltage Generator Bias Voltage Generator Bias Generator Parallel Current Driver (x8) Parallel Current Driver (x16) Parallel Current Driver (x10) Parallel Current Driver (x14) Bias Generator Reference Voltage Generator Bias Voltage Generator Parallel Current Driver (x24) Parallel Current Driver (x16) Voltage Reference Generator Level Shifting Buffer Voltage Reference Generator Control Logic Voltage Generator Voltage Amplifier Bit Resistor String DAC to-16 Decoder Bias Voltage Generator Bias Generator Bias Voltage Generator Switch Driver VINT2 Voltage Generator Resistor String Voltage Reference Adjustable Voltage Reference Voltage Generator Timing Control Control Logic Analog Buffer Control Signal Buffers Signal Buffer and Latch

15 9.0.0 Voltage Generators (Lower Left Corner) Internal Voltage Regulator Internal Voltage Regulator Test Switch to-4 Decoder Resistor String Voltage Generator to-1 Voltage Multiplexor to-8 Decoder Voltage Comparators Voltage Comparator Voltage Comparator Voltage Comparator Voltage Comparator Local Bias Current Generator Voltage Comparator Data Latch Schmitt Trigger Voltage Level Detector VINT1 Voltage Generator Signal Buffers Input Latch Local VINT Control Voltage Level Monitors Power-On Detector Voltage Reference Generator Voltage Amplifier R-C Delay R-C Control to-8 Decoder Voltage Reference Regulator Output Voltage Reference Voltage Reference Cascoded Transistors x Bias Generator Shutdown Control Supply Selector Switch Clock Enabled Switch

16 Clock Generator Reference Generator Bias Generator Voltage Reference Generator Amplifier Voltage Reference Generator Monitor Comparator Supply Voltage Monitor Shutdown Control Capacitor Delay Triggered Control Logic Variable Bias Generator Variable Bias Control Comparator Comparator Capacitor Delay Triggered Control Logic Variable Bias Generator Variable Bias Control Comparator Comparator Buffers Buffers Buffers Test Circuits Test Signal Switch to-4 Decoder Test Signal Switch Test Signal Switch Output Drivers and Data Buffers Output Driver Output Driver Control Output Buffer Transimpedance Amplifier Supply Independent Regulator Output Buffer Logic Output Driver Signal Buffers Data Buffers

17 Power Supply Pads and ESD Pad ESD Pad ESD Pad ESD Pad ESD Pad ESD Pad ESD Pad ESD Pad ESD Pad ESD Cell Library TXRX Pads About Chipworks

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