Broadcom. BCM4334 Single Chip Dual-Band Combo Wireless Connectivity Device. Circuit Analysis of Power Management Unit and Clock Generator Circuits

Transcription

1 Broadcom BCM4334 Single Chip Dual-Band Combo Wireless Connectivity Device Circuit Analysis of Power Management Unit and Clock Generator Circuits 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 DYJC Revision 1.0 Published: May 15, 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 Die Markings Die Photograph Top Metal Layer Die Photograph Polysilicon Layer Die Architecture Schematics Top Level Diagram Internal Voltage Regulators Comparator Clock Generator Clock Divider Current Comparator Comparator TRIGATE_ TRIGATEF_ TRIGATE S_DFC_11L2P5_8L2P5D Clock Generator Clock Divider Clock Generator Control Logic Voltage Regulator PCASCX PCASCX Voltage Divider Voltage Generator Decoder

4 2.3.6 Resistor Divider Select Circuit Differential Amplifier Differential Amplifier PCASCX9_ Single-Ended Amplifier Current Reference Comparator Bias Generators Voltage References NCASCX2_ Bias Generator PCASCX2_ PCASCX Current Source NCASCX PCASCX PCASCX Voltage Detector and Converter S_INV_4P5L45_4P5L9X Voltage Detector and Converter Unused Voltage Regulator Internal Voltage Regulator Comparator PMOS_S Bandgap Amplifier Voltage Divider Decoder Decoder Bandgap Generator PMOS_S PMOS_S4X PMOS_S2X NMOS_S2X NMOS_S2X2S PMOS_S2X NMOS_S NMOS_S2_ NMOS_S2X Voltage Generator

5 2.5.2 Decoder Decoder Amplifier Filter Resistor String D/A Converter Current Source PCASCX4S PCASCX2S NCASCX NCASCX NCASC PMOS_S NCASCX4_ Voltage Regulator S_TRIGATE_36L2P5_36L2P5D14S PCASCX PCASCX Unused Voltage Divider S_TRIGATE_36L2P5_36L2P5D PCASC_X2_ Control INVF_4P5L45_4P5L Current Reference Comparator NMOS_S2X Current Reference Comparator Voltage Bias PCASC_X PCASCX S_TRIGATE_36L2P5_18L2P5D Differential Amplifier Voltage Regulator Current Sink Programmable Pull-Down Resistor PCASC_X2_ Programmable Pull-Down Resistors Unused Reference Logic Amplifier Voltage Bias

6 S_TRIGATE_9X2L2P5_9X8L2P Bandgap Voltage Generators Voltage Divider S_TRIGATE_9L5_9L7D RES_DIV_ DEC_4B DEC_3B_2S Voltage Bias S_PCASCX Bandgap S_PCASCX S_PCASCX BG Decoder Current Sink Level Shifter S_INV_9L72_9L53P Clock Frequency Selector Clock Divider Current Bias S_PCASCX S_PCASCX S_PCASCX S_PCASCX Voltage Regulator S_PCASCX Voltage Regulator Voltage Divider Decoder Unused Reference Logic Voltage Regulator Clock Dividers Clock Divider Clock Divider Clock Divider Clock Divider Buffers and Drivers S_BUFSER_5P5L2P5_4L2P5S S_BUFSER_5P5L2P5_4L2P5S S_INVF_9L72_9L36X2

7 Buffers and Drivers S_BUFSER_5P5L2P5_4L2P5S Logic Clock Gen and Voltage Gen Op-Amp Op-Amp Amplifier B Comparator Current Sink Level Shift Op-Amp Voltage Divider S_BUFDIF_5P5L5_4L6P Op-Amp Level Shift Amplifier A Amplifier C MUXs Buffer Current Sources VREF and Bias Generators Decoder Select Circuit Current Bias Current Source Sink Voltage Reference Generator Differential Amplifier Oscillator S_SMINV_E6P5L27_E3P5L Clock Generator Clock Divider MUXs Clock Generators INVDIF_ Voltage Gen Voltage Gen Delay Voltage Divider Control Delay Circuits NMOS_S2X4S1

8 Delay Circuit Delay Circuit Delay Circuit Control Logic Power Management and Clock Generator Comparator Counter Frequency Divider MUXs Internal Clock Pulse Generator Shift Registers Pulse Generator Pulse Generator MUXs OR OR Gates Inverters XNOR Divider Logic Adder HA Cell XORs MUXs Adder MUXs Inverters Programmable Resistors Buffers Programmable Resistors Programmable Resistors Programmable Resistors Decoder Decoder Clock Path Oscillator Schmitt Trigger Clock Divider Circuit Clock Divider

9 3.8.2 Delay Oscillator Delay Pulse Generator S_INV_4L18_9L S_INV_9L5_4L Random Number Generator Counter Comparator S_BUFF_E11L2P5_8L2P Adjustable Voltage Generator Decoder Voltage Bias Clock Generators Clock Generator Clock Divider Pulse Generator Voltage Divider Pull-Down Voltage Detector Converter Comparator Voltage Reference Voltage Reference Selector TRIGATE_4P5L3P5_P5L3P5D Comparator RS FF Delay Voltage Converter Pulse Generator S_INVF_5P5L36_5P5L Resistor Voltage Divider S_TRIGATE_9L2P5X8_17P5L2P5X S_TRIGATE_9L2P5X4_17P5L2P5X Current Sources TEST_ Bias Generator Control S_INVF_6L2P5_11L2P Selectable Voltage References Programmable Gain Amplifier

10 Bias Generator Voltage Selector Switch Control Adjustable Voltage Reference S_TRIGATE_3P5L2P5X2_3P5L2P VOL_DIV_ Enable Control Cascaded Amplifiers Mixer BIAS_ NOUSE_ Charge Pump Voltage Generator Switch Circuit Amplifier Differential Amplifier Control Logic Comparator S_INVF_3P5L2P5X2_3P5L2P Current Comparators Current Comparator Current Detector Logic Circuit S_INV_95P5L4_24L S_INV_95P5L4_24L5D2S S_INVF_95P5L4X2_24L5X S_INV_95P5L4_24L5D S_INV_95P5L4X24_24L5X Level Shift Level Shift Level Shift S_NOR2_43L5_30P Level Shift S_INV_95P5L4_48L5D S_INV_95P5L4_48L5D S_INV_95P5L4X24_48L5X S_INV_95P5L4_48L S_INV_95P5L4_48L5D S_INV_95P5L4X12_48L5X S_INV_95P5L4_24L5D S_INV_95P5L4_24L5D8

11 S_INV_95P5L4X80_24L5X Buffers S_INV_4L18_8P5L S_INV_8P5L4P5_4L Voltage Controlled Oscillator S_INV_3L2P5_3P5L2P Comparator Logic Circuit Level Shifter Current Comparator Current Sink Circuit S_SMINV_E36L4X4_E5L13P5L5X Current Voltage Detector Level Shift Pulse Generator S_SMINV_E7L4X2_E6L5X S_SMINV_E5P5L4X2_E6L5X Current Driver Voltage Detector S_SMBUF_7L4_5P5L Control Buffers Pre-Driver Level Shifter Pulse Generator Voltage Bias Voltage Reference Generator NMOS_S2X Buffer Amplifier Reference Voltage P Load PCASCX8_1S PCASCX8_1S PCASCX44_ PCASCX20_ PCASCX8_ PCASCX8_2S Differential Amplifier Voltage Gen S_INV_15P5L1X2_4P5L1_3

12 4.4.2 S_INV_15P5L1_4P5L1_ Enable Control Logic S_INV_4P5L1_4P5L1_ Bias MUXs Internal Voltage Supply Control Buffers and Registers Latched Registers Latched Registers Control Buffers BUF_DLY BUF_DLY8_ BUF_DLY8_ BUF_DLY8_ Control Buffers BUF_DLY BUF_DLY6_ BUF_DLY6_ BUF_DLY6_ BUF_DLY6_ Control Buffers Control Logic S_BUFF_E3P5_2X9S PADs with ESD Protection PADs Supply PADs with ESD Protection Cell Library Other Circuits About Chipworks