Cypress BCM20730A1KMLG Single-chip bluetooth transceiver for wireless input device Datasheet

The following document contains information on Cypress products. Although the document is marked with the name
“Broadcom”, the company that originally developed the specification, Cypress will continue to offer these products to
new and existing customers.
CONTINUITY OF SPECIFICATIONS
There is no change to this document as a result of offering the device as a Cypress product. Any changes that have
been made are the result of normal document improvements and are noted in the document history page, where
supported. Future revisions will occur when appropriate, and changes will be noted in a document history page.
CONTINUITY OF ORDERING PART NUMBERS
Cypress continues to support existing part numbers. To order these products, please use only the Cypress Ordering
Part Number listed in the table.
Broadcom Ordering Part Number
BCM20730A2KML2GT
BCM20730A1KML2G
BCM20730A1KMLG
BCM20730A1KFBGT
BCM20730A2KFBG
BCM20730A1KFBG
BCM20730A1KML2GT
BCM20730A2KML2G
BCM20730A1KMLGT
BCM20730A2KFBGT
Cypress Ordering Part Number
CYW20730A2KML2GT
CYW20730A1KML2G
CYW20730A1KMLG
CYW20730A1KFBGT
CYW20730A2KFBG
CYW20730A1KFBG
CYW20730A1KML2GT
CYW20730A2KML2G
CYW20730A1KMLGT
CYW20730A2KFBGT
FOR MORE INFORMATION
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Cypress products and services.
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Cypress Semiconductor Corporation
Document Number: 002-14824 Rev. *H
198 Champion Court
San Jose, CA 95134-1709
408-943-2600
Revised October 17, 2016
Data Sheet
BCM20730
Single-Chip Bluetooth Transceiver for Wireless
Input Devices
GE N ER A L DE S CR I P TI O N
F E A T U RE S
The Broadcom® BCM20730 is a Bluetooth 3.0compliant, stand-alone baseband processor with an
integrated 2.4 GHz transceiver. It is ideal for wireless
input device applications including game controllers,
keyboards, 3D glasses, remote controls, gestural
input devices, and sensor devices. Built-in firmware
adheres to the Bluetooth Human Interface Device
(HID) profile and Bluetooth Device ID profile
specifications.
• On-chip support for common keyboard and
mouse interfaces eliminates external processor
• Programmable keyscan matrix interface, up to
8 × 20 key-scanning matrix
• 3-axis quadrature signal decoder
• Shutter control for 3D glasses
• Infrared modulator
• IR learning
• Triac control
• Triggered Broadcom Fast Connect
• Supports Adaptive Frequency Hopping
• Excellent receiver sensitivity
• Bluetooth specification 3.0 compatible, including
enhanced power control (Unicast Connectionless
Data)
• Bluetooth HID profile version 1.0 compliant
• Bluetooth Device ID profile version 1.3 compliant
• Bluetooth AVRCP-CT profile version 1.3
compliant
• 10-bit auxiliary ADC with 28 analog channels
• On-chip support for serial peripheral interface
(master and slave modes)
• Broadcom Serial Communications (BSC) interface
(compatible with Philips® (now NXP) I2C slaves)
• Programmable output power control meets
Class 2 or Class 3 requirements
• Class 1 operation supported with external PA and
T/R switch
• Integrated ARM Cortex™-M3 based
microprocessor core
• On-chip power-on reset (POR)
• Support for EEPROM and serial flash interfaces
• Integrated low-dropout regulator (LDO)
• On-chip software controlled power management
unit
• Three package types are available:
– 32-pin QFN package (5 mm × 5 mm)
– 40-pin QFN package (6 mm × 6 mm)
– 64-pin BGA package (7 mm × 7 mm)
• RoHS compliant
The BCM20730 radio has been designed to provide
low power, low cost, and robust communications for
applications operating in the globally available
2.4 GHz unlicensed ISM band. It is fully compliant
with Bluetooth Radio Specification 3.0.
The single-chip Bluetooth transceiver is a monolithic
component implemented in a standard digital CMOS
process and requires minimal external components
to make a fully compliant Bluetooth device. The
BCM20730 is available in three package options: a
32-pin, 5 mm × 5 mm QFN, a 40-pin, 6 mm × 6 mm
QFN, and a 64-pin, 7 mm × 7 mm BGA.
A P P L IC A TI O NS
• Wireless pointing devices: mice, trackballs,
gestural controls
• Wireless keyboards
• 3D glasses
• Remote controls
• Game controllers
• Point-of-sale (POS) input devices
• Remote sensors
• Home automation
• Personal health and fitness monitoring
20730-DS108-R
5300 California Avenue • Irvine, CA 92617 • Phone: 949-926-5000 • Fax: 949-926-5203
September 9, 2013
BCM20730 Data Sheet
Revision History
Muxed on GPIO
UART_TXD
UART_RXD
Tx RTS_N
Rx
CTS_N
1.2V VDD_CORE
Domain
WDT
Processing
Unit
(ARM -CM3)
SDA/
MOSI
Test
UART
Periph 320K
UART ROM
60K
RAM
1.2V
SCL/
SCK MISO
BSC/SPI
Master
Interface
(BSC is I2C compaƟble)
VDD_CORE
VSS,
VDDO,
VDDC
28 ADC
Inputs
1.2V
1.2V
POR
CT ɇ ѐ
ADC
1.2V
LDO
1.425V to 3.6V
MIA
POR
System Bus
1.62V to 3.6V
32 kHz
LPCLK
Peripheral
Interface
Block
hclk
(24 MHz to 1 MHz)
RF Control
and Data
2.4 GHz
Radio
T/R
Switch
VDD_IO
Domain
I/O Ring Bus
Bluetooth
Baseband
Core
24
MHz
RF I/O
I/O Ring
Control
Registers
Volt. Trans
GPIO
Control/
Status
Registers
IR
Mod.
and
Learning
SPI
M/S
Keyboard
Matrix
Scanner
w/FIFO
3 -Axis
Mouse
Signal
Controller
3-D Glasses
and Triac
Frequency
Synthesizer
1.2V VDD_RF
Domain
IR
I/O
8 x 20
Scan
Matrix
28 ADC
Inputs
24 MHz Ref. Xtal
Power
WAKE
40 GPIO
AutoCal
PMU
6 Quadrature
Inputs (3 pair) +
High Current
Driver Controls
32 kHz
LPCLK
128 kHz
LPO
128 kHz
LPCLK
÷4
PWM
14 GPIO on the 32-pin QFN
1.62V to 3.6V
VDD_IO
32 kHzyƚĂů;ŽƉƟŽŶĂůͿ
Figure 1: Functional Block Diagram
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BCM20730 Data Sheet
Revision History
Revision History
Revision
Date
Change Description
20730-DS108-R
09/09/13
20730-DS107-R
10/10/12
20730-DS106-R
20730-DS105-R
09/20/11
06/29/11
20730-DS104-R
05/09/2011
20730-DS103-R
04/06/11
Revised:
• Section : “Shutter Control for 3D Glasses,” on page 13
• Table 27: “Ordering Information,” on page 58
Added:
• Table 15: “ESD Tolerance,” on page 45
Revised:
• “SPI Timing” on page 49
Changed from a Preliminary Data Sheet to a Data Sheet.
Added:
• Figure 9: “32-Pin QFN Ball Map,” on page 39
• Figure 16: “32-Pin QFN Package,” on page 52
• Table 20: “BCM20730 5 × 5 × 1 mm QFN, 32-Pin Tape Reel
Specifications,” on page 55
Revised:
• General Description and Features on Cover
• Figure 1: “Functional Block Diagram,” on page 2
• “ADC Port” on page 17
• Table 2: “BCM20730 First SPI Set (Master Mode),” on page 18
• Table 2: “BCM20730 First SPI Set (Master Mode),” on page 18
• Table 2: “BCM20730 First SPI Set (Master Mode),” on page 18
• Figure 5: “External Reset Timing,” on page 22
• “GPIO Port” on page 27
• “BBC Power Management” on page 29
• Table 7: “Pin Descriptions,” on page 30
• Table 8: “GPIO Pin Descriptions,” on page 32
• Table 12: “ADC Specifications,” on page 44
Revised:
• Figure 1: “Functional Block Diagram,” on page 2
• “ADC Port” on page 17
• Table 10: “Power Supply,” on page 39
Revised:
• Table 14: “Current Consumption,” on page 42
• Table 23: “Ordering Information,” on page 54
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BCM20730 Data Sheet
Revision History
Revision
Date
Change Description
20730-DS102-R
03/23/11
Added:
• Table 1: “ADC Modes,” on page 18
Revised:
• Figure 1: “Functional Block Diagram,” on page 2
• “ADC Port” on page 17
• “Internal LDO Regulator” on page 22
• “UART Interface” on page 23
• Table 6: “XTAL Oscillator Characteristics,” on page 25
• Table 8: “GPIO Pin Descriptions,” on page 30
• Table 10: “Power Supply,” on page 39
• Table 11: “LDO Regulator Electrical Specifications,” on page 40
• Table 12: “ADC Specifications,” on page 41
• Table 14: “Current Consumption,” on page 42
• Table 15: “Receiver RF Specifications,” on page 43
• Table 16: “Transmitter RF Specifications,” on page 44
• Table 18: “SPI Interface Timing Specifications,” on page 46
• Table 21: “BCM20730 6 × 6 × 1 mm QFN, 40-Pin Tape Reel
Specifications,” on page 52
• Table 22: “BCM20730 7 × 7 × .8 mm WFBGA, 64-Pin Tape Reel
Specifications,” on page 52
Deleted:
• Placeholder for Figure 4: Triac Control
• Placeholder for Figure 18: BCM20730, 6 x 6 QFN Package Tray
• Placeholder for Figure 19: BCM20730, 7 x 7 FBGA Package Tray
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Revision
Date
Change Description
20730-DS101-R
6/25/10
20730-DS100-RI
4/27/10
Added:
• “Shutter Control for 3D Glasses” on page 10.
• “Infrared Modulator” on page 10.
• “Infrared Learning” on page 11.
• “Triac Control” on page 12.
• “Broadcom Proprietary Control Signalling and Triggered Baseband
Fast Connect” on page 12.
• Figure 5: “Internal Reset Timing,” on page 17.
• Figure 6: “External Reset Timing,” on page 17.
• Figure 10: “40-pin QFN Ball Map,” on page 33.
• Figure 11: “64-pin BGA Ball Map,” on page 34.
• “SPI Timing” on page 41.
• Figure 16: “40-pin QFN,” on page 44.
• Figure 17: “64-pin FBGA,” on page 45.
Revised:
• “Microprocessor Unit” on page 16.
• Table 6: “Pin Descriptions,” on page 25.
• Table 11: “ADC Specifications,” on page 36.
• Table 14: “Receiver RF Specifications,” on page 38.
• Table 15: “Transmitter RF Specifications,” on page 39.
• Table 21: “Ordering Information,” on page 50.
Initial release.
Broadcom Corporation
5300 California Avenue
Irvine, CA 92617
© 2013 by Broadcom Corporation
All rights reserved
Printed in the U.S.A.
Broadcom®, the pulse logo, Connecting everything®, and the Connecting everything logo are among the
registered trademarks of Broadcom Corporation and/or its subsidiaries in the United States, certain other
countries, and/or the EU. Bluetooth® is a trademark of the Bluetooth SIG. Any other trademarks or trade
names mentioned are the property of their respective owners.
Confidential and Proprietary Information: This document and the software are proprietary properties of
Broadcom Corporation. This software package may only be used in accordance with the Broadcom Corporation
license agreement.
This data sheet (including, without limitation, the Broadcom component(s) identified herein) is not designed,
intended, or certified for use in any military, nuclear, medical, mass transportation, aviation, navigations,
pollution control, hazardous substances management, or other high risk application. BROADCOM PROVIDES
THIS DATA SHEET "AS-IS", WITHOUT WARRANTY OF ANY KIND. BROADCOM DISCLAIMS ALL WARRANTIES,
EXPRESSED AND IMPLIED, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
BCM20730 Data Sheet
Table of Contents
Table of Contents
About This Document...................................................................................................................................11
Purpose and Audience ...........................................................................................................................11
Acronyms and Abbreviations.................................................................................................................11
References .............................................................................................................................................11
Technical Support.........................................................................................................................................11
Section 1: Functional Description .................................................................................... 12
Keyboard Scanner.........................................................................................................................................12
Theory of Operation ..............................................................................................................................12
Idle ..................................................................................................................................................12
Scan ................................................................................................................................................12
Scan End .........................................................................................................................................13
Mouse Quadrature Signal Decoder..............................................................................................................13
Theory of Operation ..............................................................................................................................13
Shutter Control for 3D Glasses.....................................................................................................................13
Infrared Modulator ......................................................................................................................................14
Infrared Learning ..........................................................................................................................................15
Triac Control .................................................................................................................................................15
Broadcom Proprietary Control Signaling and Triggered Broadcom Fast Connect .....................................15
Bluetooth Baseband Core ............................................................................................................................16
Frequency Hopping Generator ..............................................................................................................16
E0 Encryption .........................................................................................................................................16
Link Control Layer ..................................................................................................................................16
Adaptive Frequency Hopping.................................................................................................................17
Bluetooth Version 3.0 Features .............................................................................................................17
Test Mode Support ................................................................................................................................17
ADC Port .......................................................................................................................................................17
Serial Peripheral Interface ...........................................................................................................................18
Microprocessor Unit.....................................................................................................................................21
EEPROM Interface..................................................................................................................................21
Serial Flash Interface..............................................................................................................................21
Internal Reset.........................................................................................................................................22
External Reset ........................................................................................................................................22
Integrated Radio Transceiver .......................................................................................................................23
Transmitter Path ....................................................................................................................................23
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BCM20730 Data Sheet
Table of Contents
Digital Modulator............................................................................................................................23
Power Amplifier ..............................................................................................................................23
Receiver Path .........................................................................................................................................23
Digital Demodulator and Bit Synchronizer .....................................................................................23
Receiver Signal Strength Indicator..................................................................................................23
Local Oscillator.......................................................................................................................................24
Calibration..............................................................................................................................................24
Internal LDO Regulator ..........................................................................................................................24
Peripheral Transport Unit ............................................................................................................................24
Broadcom Serial Communications Interface .........................................................................................24
UART Interface.......................................................................................................................................25
Clock Frequencies .........................................................................................................................................25
Crystal Oscillator ....................................................................................................................................25
HID Peripheral Block .......................................................................................................................26
32 kHz Crystal Oscillator .................................................................................................................26
GPIO Port ......................................................................................................................................................27
Port 0–Port 1, Port 8–Port 23, and Port 28–Port 38..............................................................................27
Port 26–Port 29......................................................................................................................................27
PWM .............................................................................................................................................................27
Power Management Unit.............................................................................................................................28
RF Power Management .........................................................................................................................28
Host Controller Power Management.....................................................................................................29
BBC Power Management .......................................................................................................................29
Section 2: Pin Assignments.............................................................................................. 30
Pin Descriptions............................................................................................................................................30
Ball Maps ......................................................................................................................................................39
Section 3: Specifications.................................................................................................. 42
Electrical Characteristics ..............................................................................................................................42
RF Specifications...........................................................................................................................................46
Timing and AC Characteristics......................................................................................................................48
UART Timing ..........................................................................................................................................48
SPI Timing...............................................................................................................................................49
BSC Interface Timing..............................................................................................................................51
Section 4: Mechanical Information.................................................................................. 53
Tape Reel and Packaging Specifications ................................................................................................56
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BCM20730 Data Sheet
Table of Contents
Section 5: Ordering Information ...................................................................................... 58
Appendix A: Acronyms and Abbreviations....................................................................... 59
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BCM20730 Data Sheet
List of Figures
List of Figures
Figure 1: Functional Block Diagram....................................................................................................................2
Figure 2: Infrared TX.........................................................................................................................................14
Figure 3: Infrared RX.........................................................................................................................................15
Figure 4: Internal Reset Timing ........................................................................................................................22
Figure 5: External Reset Timing........................................................................................................................22
Figure 6: Recommended Oscillator Configuration — 12 pF Load Crystal..........................................................25
Figure 7: 32 kHz Oscillator Block Diagram........................................................................................................26
Figure 8: PWM Channel Block Diagram............................................................................................................28
Figure 9: 32-Pin QFN Ball Map .........................................................................................................................39
Figure 10: 40-pin QFN Ball Map .......................................................................................................................40
Figure 11: 64-pin BGA Ball Map .......................................................................................................................41
Figure 12: UART Timing ....................................................................................................................................48
Figure 13: SPI Timing Diagram..........................................................................................................................49
Figure 14: BSC Interface Timing Diagram .........................................................................................................52
Figure 15: 32-Pin QFN Package ........................................................................................................................53
Figure 16: 40-pin QFN Package ........................................................................................................................54
Figure 17: 64-pin FBGA Package.......................................................................................................................55
Figure 18: Pin 1 Orientation .............................................................................................................................57
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BCM20730 Data Sheet
List of Tables
List of Tables
Table 1: ADC Modes .........................................................................................................................................18
Table 2: BCM20730 First SPI Set (Master Mode) .............................................................................................18
Table 3: BCM20730 Second SPI Set (Master Mode).........................................................................................18
Table 4: BCM20730 Second SPI Set (Slave Mode)............................................................................................19
Table 5: Reference Crystal Electrical Specifications .........................................................................................26
Table 6: XTAL Oscillator Characteristics ...........................................................................................................27
Table 7: Pin Descriptions ..................................................................................................................................30
Table 8: GPIO Pin Descriptions .........................................................................................................................32
Table 9: Maximum Electrical Rating .................................................................................................................42
Table 10: Power Supply ....................................................................................................................................42
Table 11: LDO Regulator Electrical Specifications ............................................................................................43
Table 12: ADC Specifications ............................................................................................................................44
Table 13: Digital Level ......................................................................................................................................44
Table 14: Current Consumption ......................................................................................................................45
Table 15: ESD Tolerance ...................................................................................................................................45
Table 16: Receiver RF Specifications ................................................................................................................46
Table 17: Transmitter RF Specifications ...........................................................................................................47
Table 18: UART Timing Specifications ..............................................................................................................48
Table 19: SPI1 Timing Values — SCLK = 12 MHz and VDDM = 3.2V ..................................................................49
Table 20: SPI1 Timing Values — SCLK = 6 MHz and VDDM = 1.62V ..................................................................50
Table 21: SPI2 Timing Values — SCLK = 12 MHz and VDDM = 3.2V ..................................................................50
Table 22: SPI2 Timing Values — SCLK = 6 MHz and VDDM = 1.62V ..................................................................51
Table 23: BSC Interface Timing Specifications..................................................................................................51
Table 24: BCM20730 5 × 5 × 1 mm QFN, 32-Pin Tape Reel Specifications.......................................................56
Table 25: BCM20730 6 × 6 × 1 mm QFN, 40-Pin Tape Reel Specifications.......................................................56
Table 26: BCM20730 7 × 7 × 0.8 mm WFBGA, 64-Pin Tape Reel Specifications ..............................................56
Table 27: Ordering Information .......................................................................................................................58
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BCM20730 Data Sheet
About This Document
About This Document
Purpose and Audience
This data sheet provides a description of the major blocks, interfaces, pin assignments, and specifications of
the BCM20730 single-chip Bluetooth transceiver. This is a required document for designers responsible for
adding the BCM20730 Bluetooth transceiver to wireless input device applications including game controllers,
keyboards, 3D glasses, remote controls, gestural input devices, and sensor devices.
Acronyms and Abbreviations
In most cases, acronyms and abbreviations are defined on first use. Acronyms and abbreviations in this
document are also defined in Appendix A: “Acronyms and Abbreviations,” on page 59.
For a comprehensive list of acronyms and other terms used in Broadcom documents, go to:
http://www.broadcom.com/press/glossary.php.
References
The references in this section may be used in conjunction with this document.
Note: Broadcom provides customer access to technical documentation and software through its
Customer Support Portal (CSP) and Downloads & Support site (see Technical Support).
For Broadcom documents, replace the “x” in the document number with the largest number available in the
repository to ensure that you have the most current version of the document.
Document Name
Number
Broadcom Items
[1] Single-Chip Bluetooth® Transceiver and Baseband Processor
20702-DS10x-R
Technical Support
Broadcom provides customer access to a wide range of information, including technical documentation,
schematic diagrams, product bill of materials, PCB layout information, and software updates through its
customer support portal (https://support.broadcom.com). For a CSP account, contact your Sales or Engineering
support representative.
In addition, Broadcom provides other product support through its Downloads & Support site
(http://www.broadcom.com/support/).
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BCM20730 Data Sheet
Functional Description
Section 1: Functional Description
Keyboard Scanner
The keyboard scanner is designed to autonomously sample keys and store them into buffer registers without
the need for the host microcontroller to intervene. The scanner has the following features:
• Ability to turn off its clock if no keys pressed.
• Sequential scanning of up to 160 keys in an 8 x 20 matrix.
• Programmable number of columns from 1 to 20.
• Programmable number of rows from 1 to 8.
• 16-byte key-code buffer (can be augmented by firmware).
• 128 kHz clock – allows scanning of full 160-key matrix in about 1.2 ms.
• N-key rollover with selective 2-key lockout if ghost is detected.
• Keys are buffered until host microcontroller has a chance to read it, or until overflow occurs.
• Hardware debouncing and noise/glitch filtering.
• Low-power consumption. Single-digit µA-level sleep current.
Theory of Operation
The key scan block is controlled by a state machine with the following states:
Idle
The state machine begins in the idle state. In this state, all column outputs are driven high. If any key is pressed,
a transition occurs on one of the row inputs. This transition causes the 128 kHz clock to be enabled (if it is not
already enabled by another peripheral) and the state machine to enter the scan state. Also in this state, an 8bit row-hit register and an 8-bit key-index counter is reset to 0.
Scan
In the scan state, a row counter counts from 0 up to a programmable number of rows minus 1. Once the last
row is reached, the row counter is reset and the column counter is incremented. This cycle repeats until the
row and column counters are both at their respective terminal count values. At that point, the state machine
moves into the Scan-End state.
As the keys are being scanned, the key-index counter is incremented. This counter is the value compared to the
modifier key codes stored, or in the key-code buffer if the key is not a modifier key. It can be used by the
microprocessor as an index into a lookup table of usage codes.
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BCM20730 Data Sheet
Mouse Quadrature Signal Decoder
Also, as the n-th row is scanned, the row-hit register is ORed with the current 8-bit row input values if the
current column contains two or more row hits. During the scan of any column, if a key is detected at the current
row, and the row-hit register indicates that a hit was detected in that same row on a previous column, then a
ghost condition may have occurred, and a bit in the status register is set to indicate this.
Scan End
This state determines whether any keys were detected while in the scan state. If yes, the state machine returns
to the scan state. If no, the state machine returns to the idle state, and the 128 kHz clock request signal is made
inactive.
The microcontroller can poll the key status register.
Mouse Quadrature Signal Decoder
The mouse signal decoder is designed to autonomously sample two quadrature signals commonly generated
by optomechanical mouse apparatus. The decoder has the following features:
• Three pairs of inputs for X, Y, and Z (typical scroll wheel) axis signals. Each axis has two options:
– For the X axis, choose P2 or P32 as X0 and P3 or P33 as X1.
– For the Y axis, choose P4 or P34 as Y0 and P5 or P35 as Y1.
– For the Z axis, choose P6 or P36 as Z0 and P7 or P37 as Z1.
• Control of up to four external high current GPIOs to power external optoelectronics:
– Turn-on and turn-off time can be staggered for each HC-GPIO to avoid simultaneous switching of high
currents and having multiple high-current devices on at the same time.
– Sample time can be staggered for each axis.
– Sense of the control signal can be active high or active low.
– Control signal can be tristated for off condition or driven high or low, as appropriate.
Theory of Operation
The mouse decoder block has four 16-bit PWMs for controlling external quadrature devices and sampling the
quadrature inputs at its core.
The GPIO signals may be used to control such items as LEDs, external ICs that may emulate quadrature signals,
photodiodes, and photodetectors.
Shutter Control for 3D Glasses
The BCM20730, combined with the BCM20702, provides full system support for 3D glasses on televisions. The
BCM20702 gets frame synchronization signals from the TV, converts them into proprietary timing control
messages, then passes these messages to the BCM20730. The BCM20730 uses these messages to synchronize
the shutter control for the 3D glasses with the television frames.
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BCM20730 Data Sheet
Infrared Modulator
The BCM20730 can provide up to four synchronized control signals for left and right eye shutter control. These
four lines can output pulses with microsecond resolution for on and off timing. The total cycle time can be set
for any period up to 65535 msec. The pulses are synchronized to each other for left and right eye shutters.
The BCM20730 seamlessly adjusts the timing of the control signals based on control messages from the
BCM20702, ensuring that the 3D glasses remain synchronized to the TV display frame.
3D hardware control on the BCM20730 works independently of the rest of the system. The BCM20730
negotiates sniff with the BCM20702 and, except for sniff resynchronization periods, most of the BCM20730
circuitry remains in a low power state while the 3D glasses subsystem continues to provide shutter timing and
control pulses. This significantly reduces total system power consumption.
The BCM20730A2 has the new BT SIG 3DG profile, as well as legacy mode 3DG, included in ROM. This allows it
to support a smaller and lower cost external memory of 4 KB.
Infrared Modulator
The BCM20730 includes hardware support for infrared TX. The hardware can transmit both modulated and
unmodulated waveforms. For modulated waveforms, hardware inserts the desired carrier frequency into all IR
transmissions. IR TX can be sourced from firmware-supplied descriptors, a programmable bit, or the peripheral
UART transmitter.
If descriptors are used, they include IR on/off state and the duration between 1–32767 µsec. The BCM20730
IR TX firmware driver inserts this information in a hardware FIFO and makes sure that all descriptors are played
out without a glitch due to underrun. See Figure 2.
Figure 2: Infrared TX
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BCM20730 Data Sheet
Infrared Learning
Infrared Learning
The BCM20730 includes hardware support for infrared learning. The hardware can detect both modulated and
unmodulated signals. For modulated signals, the BCM20730 can detect carrier frequencies between 10 kHz
and 500 kHz and the duration that the signal is present or absent. The BCM20730 firmware driver supports
further analysis and compression of learned signal. The learned signal can then be played back through the
BCM20730 IR TX subsystem. See Figure 3.
Figure 3: Infrared RX
Triac Control
The BCM20730 includes hardware support for zero-crossing detection and trigger control for up to four triacs.
The BCM20730 detects zero-crossing on the AC zero detection line and uses that to provide a pulse that is
offset from the zero-crossing. This allows the BCM20730 to be used in dimmer applications, as well as any other
applications that require a control signal that is offset from an input event.
Broadcom Proprietary Control Signaling and Triggered
Broadcom Fast Connect
Broadcom Proprietary Control Signaling (BPCS) and Triggered Broadcom Fast Connect (TBFC) are Broadcomproprietary baseband (ACL) suspension and low latency reconnection mechanisms that reestablish the
baseband connection with the peer controller that also supports BPCS/TBFC.
The BCM20730 uses BPCS primitives to allow a Human Interface Device (HID) to suspend all RF traffic after a
configurable idle period with no reportable activity. To conserve power, it can then enter one of its low power
states while still logically remaining connected at the L2CAP and HID layers with the peer device. When an
event requires the HID to deliver a report to the peer device, the BCM20730 uses the TBFC and BPCS
mechanisms to reestablish the baseband connection and can immediately resume L2CAP traffic, greatly
reducing latency between the event and delivery of the report to the peer device.
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BCM20730 Data Sheet
Bluetooth Baseband Core
Certain applications may make use of the BCM20730 Baseband Fast Connect (BFC) mechanism for power
savings and lower latencies not achievable by using even long sniff intervals by completely eliminating the need
to maintain an RF link, while still being able to establish ACL and L2CAP connections much faster than regular
methods.
Bluetooth Baseband Core
The Bluetooth Baseband Core (BBC) implements all of the time-critical functions required for high performance
Bluetooth operation. The BBC manages the buffering, segmentation, and data routing for all connections. It
also buffers data that passes through it, handles data flow control, schedules ACL TX/RX transactions, monitors
Bluetooth slot usage, optimally segments and packages data into baseband packets, manages connection
status indicators, and composes and decodes HCI packets. In addition to these functions, it independently
handles HCI event types and HCI command types.
The following transmit and receive functions are also implemented in the BBC hardware to increase TX/RX data
reliability and security before sending over the air:
• Receive Functions: symbol timing recovery, data deframing, forward error correction (FEC), header error
control (HEC), cyclic redundancy check (CRC), data decryption, and data dewhitening.
• Transmit Functions: data framing, FEC generation, HEC generation, CRC generation, link key generation,
data encryption, and data whitening.
Frequency Hopping Generator
The frequency hopping sequence generator selects the correct hopping channel number depending on the link
controller state, Bluetooth clock, and device address.
E0 Encryption
The encryption key and the encryption engine are implemented using dedicated hardware to reduce software
complexity and provide minimal processor intervention.
Link Control Layer
The link control layer is part of the Bluetooth link control functions that are implemented in dedicated logic in
the Link Control Unit (LCU). This layer consists of the Command Controller, which takes software commands,
and other controllers that are activated or configured by the Command Controller to perform the link control
tasks. Each task performs a different Bluetooth link controller state. STANDBY and CONNECTION are the two
major states. In addition, there are five substates: page, page scan, inquiry, inquiry scan, and sniff.
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BCM20730 Data Sheet
ADC Port
Adaptive Frequency Hopping
The BCM20730 gathers link quality statistics on a channel-by-channel basis to facilitate channel assessment
and channel map selection. The link quality is determined by using both RF and baseband signal processing to
provide a more accurate frequency hop map.
Bluetooth Version 3.0 Features
The BCM20730 supports Bluetooth 3.0, including the following options:
• Enhanced Power Control
• Unicast Connectionless Data
• HCI Read Encryption Key Size command
The BCM20730 also supports the following Bluetooth version 2.1 features:
• Extended Inquiry Response
• Sniff Subrating
• Encryption Pause and Resume
• Secure Simple Pairing
• Link Supervision Timeout Changed Event
• Erroneous Data Reporting
• Non-Automatically-Flushable Packet Boundary Flag
• Security Mode 4
Test Mode Support
The BCM20730 fully supports Bluetooth Test mode, as described in Part 1 of the Bluetooth 3.0 specification.
This includes the transmitter tests, normal and delayed loopback tests, and the reduced hopping sequence.
In addition to the standard Bluetooth Test mode, the device supports enhanced testing features to simplify RF
debugging and qualification as well as type-approval testing.
ADC Port
The BCM20730 contains a 16-bit ADC (effective number of bits is 10).
Additionally:
• There are 28 analog input channels in the 64-pin package, 12 analog input channels in the 40-pin package,
and 9 analog input channels in the 32-pin package. All channels are multiplexed on various GPIOs.
• The conversion time is 10 μs.
• There is a built-in reference with supply- or band-gap based reference modes.
• The maximum conversion rate is 187 kHz.
• There is a rail-to-rail input swing.
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BCM20730 Data Sheet
Serial Peripheral Interface
The ADC consists of an analog ADC core that performs the actual analog-to-digital conversion and digital
hardware that processes the output of the ADC core into valid ADC output samples. Directed by the firmware,
the digital hardware also controls the input multiplexers that select the ADC input signal V inp and the ADC
reference signals Vref.
Table 1: ADC Modes
Mode
ENOB (Typical)
Maximum Sampling Rate (kHz)
Latencya (μs)
0
1
2
3
4
13
12.6
12
11.5
10
5.859
11.7
46.875
93.75
187
171
85
21
11
5
a. Settling time after switching channels.
Serial Peripheral Interface
The BCM20730 has two independent SPI interfaces. One is a master-only interface and the other can be either
a master or a slave. Each interface has a 16-byte transmit buffer and a 16-byte receive buffer. To support more
flexibility for user applications, the BCM20730 has optional I/O ports that can be configured individually and
separately for each functional pin, as shown in Table 2. The BCM20730 acts as an SPI master device that
supports 1.8V or 3.3V SPI slaves, as shown in Table 2. The BCM20730 can also act as an SPI slave device that
supports a 1.8V or 3.3V SPI master, as shown in Table 2.
Table 2: BCM20730 First SPI Set (Master Mode)
Pin Name
SPI_CLK
Configuration set 1
SCL
Configuration set 2
SCL
Configuration set 3
SCL
(Default for serial flash)
Configuration set 4
SCL
SPI_MOSI
SPI_MISO
SPI_CSa
SDA
SDA
SDA
P24
P26
P32
–
–
P33
SDA
P39
–
a. Any GPIO can be used as SPI_CS when SPI is in master mode.
Table 3: BCM20730 Second SPI Set (Master Mode)
Pin Name
SPI_CLK
SPI_MOSI
SPI_MISO
SPI_CSa
Configuration set 1
Configuration set 2
Configuration set 3
Configuration set 4
P3
P3
P3
P3
P0
P0
P2
P2
P1
P5
P1
P5
–
–
–
–
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BCM20730 Data Sheet
Serial Peripheral Interface
Table 3: BCM20730 Second SPI Set (Master Mode) (Cont.)
Pin Name
SPI_CLK
SPI_MOSI
SPI_MISO
SPI_CSa
Configuration set 5
Configuration set 6
Configuration set 7
Configuration set 8
Configuration set 9
Configuration set 10
Configuration set 11
Configuration set 12
Configuration set 13
Configuration set 14
Configuration set 15
Configuration set 16
Configuration set 17
Configuration set 18
Configuration set 19
Configuration set 20
Configuration set 21
Configuration set 22
Configuration set 23
Configuration set 24
Configuration set 25
Configuration set 26
Configuration set 27
Configuration set 28
Configuration set 29
Configuration set 30
P3
P3
P3
P3
P3
P3
P7
P7
P7
P7
P7
P7
P7
P7
P7
P7
P24
P24
P24
P24
P24
P36
P36
P36
P36
P36
P4
P4
P27
P27
P38
P38
P0
P0
P2
P2
P4
P4
P27
P27
P38
P38
P0
P2
P4
P27
P38
P0
P2
P4
P27
P38
P1
P5
P1
P5
P1
P5
P1
P5
P1
P5
P1
P5
P1
P5
P1
P5
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
a. Any GPIO can be used as SPI_CS when SPI is in master mode.
Table 4: BCM20730 Second SPI Set (Slave Mode)a
Pin Name
SPI_CLK
SPI_MOSI
SPI_MISO
SPI_CS
Configuration set 1
Configuration set 2
Configuration set 3
Configuration set 4
Configuration set 5
P3
P3
P3
P3
P7
P0
P0
P4
P4
P0
P1
P5
P1
P5
P1
P2
P2
P2
P2
P2
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BCM20730 Data Sheet
Serial Peripheral Interface
Table 4: BCM20730 Second SPI Set (Slave Mode)a
Pin Name
SPI_CLK
SPI_MOSI
SPI_MISO
SPI_CS
Configuration set 6
Configuration set 7
Configuration set 8
Configuration set 9
Configuration set 10
Configuration set 11
Configuration set 12
Configuration set 13
Configuration set 14
Configuration set 15
Configuration set 16
Configuration set 17
Configuration set 18
Configuration set 19
Configuration set 20
Configuration set 21
Configuration set 22
Configuration set 23
Configuration set 24
Configuration set 25
Configuration set 26
Configuration set 27
Configuration set 28
Configuration set 29
Configuration set 30
Configuration set 31
Configuration set 32
Configuration set 33
Configuration set 34
P7
P7
P7
P3
P3
P3
P3
P7
P7
P7
P7
P24
P24
P24
P36
P36
P36
P24
P24
P24
P36
P36
P36
P24
P24
P24
P36
P36
P36
P0
P4
P4
P0
P0
P4
P4
P0
P0
P4
P4
P27
P33
P38
P27
P33
P38
P27
P33
P38
P27
P33
P38
P27
P33
P38
P27
P33
P38
P5
P1
P5
P1
P5
P1
P5
P1
P5
P1
P5
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P25
P2
P2
P2
P6
P6
P6
P6
P6
P6
P6
P6
P26
P26
P26
P26
P26
P26
P32
P32
P32
P32
P32
P32
P39
P39
P39
P39
P39
P39
a. Additional configuration sets are available upon request.
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BCM20730 Data Sheet
Microprocessor Unit
Microprocessor Unit
The BCM20730 microprocessor unit (µPU) executes software from the link control (LC) layer up to the
application layer components that ensure adherence to the Bluetooth Human Interface Device (HID) profile
and Audio/Video Remote Control Profile (AVRCP). The microprocessor is based on an ARM Cortex™-M3, 32-bit
RISC processor with embedded ICE-RT debug and JTAG interface units. The µPU has 320 KB of ROM for program
storage and boot-up, 60 KB of RAM for scratch-pad data, and patch RAM code.
The internal boot ROM provides power-on reset flexibility, which enables the same device to be used in
different HID applications with an external serial EEPROM or with an external serial flash memory. At powerup, the lowest layer of the protocol stack is executed from the internal ROM memory.
External patches may be applied to the ROM-based firmware to provide flexibility for bug fixes and feature
additions. The device can also support the integration of user applications.
EEPROM Interface
The BCM20730 provides a Broadcom Serial Control (BSC) master interface. The BSC is programmed by the CPU
to generate four types of BSC bus transfers: read-only, write-only, combined read/write, and combined write/
read. BSC supports both low-speed and fast mode devices. The BSC is compatible with a Philips® (now NXP) I2C
slave device, except that master arbitration (multiple I2C masters contending for the bus) is not supported.
The EEPROM can contain customer application configuration information including: application code,
configuration data, patches, pairing information, BD_ADDR, baud rate, SDP service record, and file system
information used for code.
Native support for the Microchip® 24LC128, Microchip 24AA128, and ST Micro® M24128-BR is included.
Serial Flash Interface
The BCM20730 includes an SPI master controller that can be used to access serial flash memory. The SPI master
contains an AHB slave interface, transmit and receive FIFOs, and the SPI core PHY logic.
Devices natively supported include the following:
• Atmel® AT25BCM512B
• MXIC® MX25V512ZUI-20G
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BCM20730 Data Sheet
Microprocessor Unit
Internal Reset
Figure 4: Internal Reset Timing
VDDO POR delay
~ 2 ms
VDDO
VDDO POR threshold
VDDO POR
VDDC POR threshold
VDDC
VDDC POR delay
~ 2 ms
VDDC POR
Crystal
warm-up
delay:
~ 5 ms
Baseband Reset
Start reading EEPROM and
firmware boot
Crystal Enable
External Reset
The BCM20730 has an integrated power-on reset circuit that completely resets all circuits to a known poweron state. An external active low reset signal, RESET_N, can be used to put the BCM20730 in the reset state. The
RESET_N pin has an internal pull-up resistor and, in most applications, it does not require that anything be
connected to it. RESET_N should only be released after the VDDO supply voltage level has been stabilized.
Figure 5: External Reset Timing
Pulse width
>50 µs
RESET_N
Crystal
warm-up
delay:
~ 5 ms
Baseband Reset
Start reading EEPROM and
firmware boot
Crystal Enable
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BCM20730 Data Sheet
Integrated Radio Transceiver
Integrated Radio Transceiver
The BCM20730 has an integrated radio transceiver that is optimized for 2.4 GHz Bluetooth® wireless systems.
It has been designed to provide low power, low cost, and robust communications for applications operating in
the globally available 2.4 GHz unlicensed ISM band. It is fully compliant with Bluetooth Radio Specification 3.0
and meets or exceeds the requirements to provide the highest communication link quality of service.
Transmitter Path
The BCM20730 features a fully integrated transmitter. The baseband transmit data is GFSK modulated in the
2.4 GHz ISM band.
Digital Modulator
The digital modulator performs the data modulation and filtering required for the GFSK signal. The fully digital
modulator minimizes any frequency drift or anomalies in the modulation characteristics of the transmitted
signal.
Power Amplifier
The BCM20730 has an integrated power amplifier (PA) that can transmit up to +4 dBm for class 2 operation.
Receiver Path
The receiver path uses a low IF scheme to downconvert the received signal for demodulation in the digital
demodulator and bit synchronizer. The receiver path provides a high degree of linearity, an extended dynamic
range, and high-order, on-chip channel filtering to ensure reliable operation in the noisy 2.4 GHz ISM band. The
front-end topology, which has built-in out-of-band attenuation, enables the BCM20730 to be used in most
applications without off-chip filtering.
Digital Demodulator and Bit Synchronizer
The digital demodulator and bit synchronizer take the low-IF received signal and perform an optimal frequency
tracking and bit synchronization algorithm.
Receiver Signal Strength Indicator
The radio portion of the BCM20730 provides a receiver signal strength indicator (RSSI) to the baseband. This
enables the controller to take part in a Bluetooth power-controlled link by providing a metric of its own receiver
signal strength to determine whether the transmitter should increase or decrease its output power.
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BCM20730 Data Sheet
Peripheral Transport Unit
Local Oscillator
The local oscillator (LO) provides fast frequency hopping (1600 hops/second) across the 79 maximum available
channels. The BCM20730 uses an internal loop filter.
Calibration
The BCM20730 radio transceiver features a self-contained automated calibration scheme. No user interaction
is required during normal operation or during manufacturing to provide optimal performance. Calibration
compensates for filter, matching network, and amplifier gain and phase characteristics to yield radio
performance within 2% of what is optimal. Calibration takes process and temperature variations into account,
and it takes place transparently during normal operation and hop setting times.
Internal LDO Regulator
The BCM20730 has an integrated 1.2V LDO regulator that provides power to the digital and RF circuits. The
1.2V LDO regulator operates from a 1.425V to 3.63V input supply with a 30 mA maximum load current.
Note: Always place the decoupling capacitors near the pins as closely together as possible.
Peripheral Transport Unit
Broadcom Serial Communications Interface
The BCM20730 provides a 2-pin master BSC interface, which can be used to retrieve configuration information
from an external EEPROM or to communicate with peripherals such as track-ball or touch-pad modules, and
motion tracking ICs used in mouse devices. The BSC interface is compatible with I2C slave devices. The BSC does
not support multimaster capability or flexible wait-state insertion by either master or slave devices.
The following transfer clock rates are supported by the BSC:
• 100 kHz
• 400 kHz
• 800 kHz (Not a standard I2C-compatible speed.)
• 1 MHz (Compatibility with high-speed I2C-compatible devices is not guaranteed.)
The following transfer types are supported by the BSC:
• Read (Up to 16 bytes can be read.)
• Write (Up to 16 bytes can be written.)
• Read-then-Write (Up to 16 bytes can be read and up to 16 bytes can be written.)
• Write-then-Read (Up to 16 bytes can be written and up to 16 bytes can be read.)
Hardware controls the transfers, requiring minimal firmware setup and supervision.
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BCM20730 Data Sheet
Clock Frequencies
The clock pin (SCL) and data pin (SDA) are both open-drain I/O pins. Pull-up resistors external to the BCM20730
are required on both the SCL and SDA pins for proper operation.
UART Interface
The UART is a standard 2-wire interface (RX and TX) and has adjustable baud rates from 9600 bps to 1.5 Mbps.
The baud rate can be selected via a vendor-specific UART HCI command. The interface supports the Bluetooth
3.0 UART HCI (H5) specification. The default baud rate for H5 is 115.2 kbaud.
Both high and low baud rates can be supported by running the UART clock at 24 MHz.
The BCM20730 UART operates correctly with the host UART as long as the combined baud rate error of the two
devices is within ±5%.
Clock Frequencies
The BCM20730 is set with crystal frequency of 24 MHz.
Crystal Oscillator
The crystal oscillator requires a crystal with an accuracy of ±20 ppm as defined by the Bluetooth specification.
Two external load capacitors in the range of 5 pF to 30 pF are required to work with the crystal oscillator. The
selection of the load capacitors is crystal dependent. Table 5 on page 26 shows the recommended crystal
specification.
Figure 6: Recommended Oscillator Configuration — 12 pF Load Crystal
22 pF
XIN
Crystal
XOUT
20 pF
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BCM20730 Data Sheet
Clock Frequencies
Table 5: Reference Crystal Electrical Specifications
Parameter
Conditions
Minimum
Typical
Nominal frequency
Oscillation mode
Frequency tolerance
Tolerance stability over temp
Equivalent series resistance
Load capacitance
Operating temperature range
Storage temperature range
Drive level
Aging
Shunt capacitance
–
–
@25°C
@0°C to +70°C
–
–
–
–
–
–
–
–
24.000
Fundamental
–
±10
–
±10
–
–
–
12
0
–
–40
–
–
–
–
–
–
–
Maximum Unit
–
–
–
50
–
+70
+125
200
±10
2
MHz
–
ppm
ppm
W
pF
°C
°C
μW
ppm/year
pF
HID Peripheral Block
The peripheral blocks of the BCM20730 all run from a single 128 kHz low-power RC oscillator. The oscillator can
be turned on at the request of any of the peripherals. If the peripheral is not enabled, it shall not assert its clock
request line.
The keyboard scanner is a special case in that it may drop its clock request line even when enabled and then
reassert the clock request line if a keypress is detected.
32 kHz Crystal Oscillator
Figure 7 shows the 32 kHz crystal (XTAL) oscillator with external components and Table 6 on page 27 lists the
oscillator’s characteristics. It is a standard Pierce oscillator using a comparator with hysteresis on the output to
create a single-ended digital output. The hysteresis was added to eliminate any chatter when the input is
around the threshold of the comparator and is ~100 mV. This circuit can be operated with a 32 kHz or 32.768
kHz crystal oscillator or be driven with a clock input at similar frequency. The default component values are: R1
= 10 MΩ, C1 = C2 = ~10 pF. The values of C1 and C2 are used to fine-tune the oscillator.
Figure 7: 32 kHz Oscillator Block Diagram
C2
R1
32.768 kHz
XTAL
C1
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BCM20730 Data Sheet
GPIO Port
Table 6: XTAL Oscillator Characteristics
Parameter
Symbol
Conditions
Minimum
Typical
Maximum
Unit
Output
frequency
Frequency
tolerance
Start-up time
XTAL drive level
Foscout
–
–
32.768
–
kHz
–
Crystal dependent –
100
–
ppm
Tstartup
Pdrv
–
For crystal
selection
For crystal
selection
For crystal
selection
–
0.5
–
–
500
–
ms
μW
–
–
70
kΩ
–
–
1.3
pF
XTAL series
resistance
XTAL shunt
capacitance
Rseries
Cshunt
GPIO Port
The BCM20730 has 14 general-purpose I/Os (GPIOs) in the 32-pin package, 22 GPIOs in the 40-pin package, and
40 GPIOs in the 64-pin package. All GPIOs support programmable pull-up and pull-down resistors, and all
support a 2 mA drive strength except P26, P27, P28, and P29, which provide a 16 mA drive strength at 3.3V
supply.
Port 0–Port 1, Port 8–Port 23, and Port 28–Port 38
All of these pins can be programmed as ADC inputs.
Port 26–Port 29
P[26:29] consists of four pins. All pins are capable of sinking up to 16 mA for LED. These pins also have the PWM
function, which can be used for LED dimming.
PWM
The BCM20730 has four internal PWM channels. The PWM module consists of the following:
• PWM1–4
• Each of the four PWM channels, PWM1–4, contains the following registers:
– 10-bit initial value register (read/write)
– 10-bit toggle register (read/write)
– 10-bit PWM counter value register (read)
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BCM20730 Data Sheet
Power Management Unit
• The PWM configuration register is shared among PWM1–4 (read/write). This 12-bit register is used:
– To configure each PWM channel.
– To select the clock of each PWM channel
– To change the phase of each PWM channel
Figure 8 shows the structure of one PWM channel.
Figure 8: PWM Channel Block Diagram
pwm_cfg_adr register
pwm#_init_val_adr register
pwm#_togg_val_adr register
enable
clk_sel
o_flip
10
10
pwm#_cntr_adr
10
cntr value is CM3 readable
pwm_out
Example: PWM cntr w/ pwm#_init_val = 0 (dashed line)
PWM cntr w/ pwm#_init_val = x (solid line)
10'H3FF
pwm_togg_val_adr
10'Hx
10'H000
pwm_out
Power Management Unit
The Power Management Unit (PMU) provides power management features that can be invoked by software
through power management registers or packet-handling in the baseband core.
RF Power Management
The BBC generates power-down control signals for the transmit path, receive path, PLL, and power amplifier
to the 2.4 GHz transceiver, which then processes the power-down functions accordingly.
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BCM20730 Data Sheet
Power Management Unit
Host Controller Power Management
Power is automatically managed by the firmware based on input device activity. As a power-saving task, the
firmware controls the disabling of the on-chip regulator when in deep Sleep mode.
BBC Power Management
There are several low-power operations for the BBC:
• Physical layer packet handling turns RF on and off dynamically within packet TX and RX.
• Bluetooth-specified low-power connection sniff mode. While in these low-power connection modes, the
BCM20730 runs on the Low Power Oscillator and wakes up after a predefined time period.
The BCM20730 automatically adjusts its power dissipation based on user activity. The following power modes
are supported:
• Active mode
• Idle mode
• Sleep mode
• HIDOFF mode
The BCM20730 transitions to the next lower state after a programmable period of user inactivity. Busy mode
is immediately entered when user activity resumes.
In HIDOFF mode, the BCM20730 baseband and core are powered off by disabling power to LDOOUT. The VDDO
domain remains powered up and will turn the remainder of the chip on when it detects user events. This mode
minimizes chip power consumption and is intended for long periods of inactivity.
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BCM20730 Data Sheet
Pin Assignments
Section 2: Pin Assignments
Pin Descriptions
Table 7: Pin Descriptions
Pin Number
32-Pin QFN 40-pin QFN 64-pin BGA Pin Name
Radio I/O
6
8
RF Power Supplies
4
6
5
7
7
9
8
10
Power Supplies
11
13
–
–
I/O
Power
Domain
Description
F1
RF
I/O
VDD_RF
RF antenna port
D1
E1
H1
H2
VDDIF
VDDFE
VDDVCO
VDDPLL
I
I
I
I
VDD_RF
VDD_RF
VDD_RF
VDD_RF
IFPLL power supply
RF front-end supply
VCO, LOGEN supply
RFPLL and crystal oscillator supply
H6
VDDC
D4, E2, E5, VSS
F2, G1, G2
28
34
A6, D7
VDDO
14
16
–
VDDM
Clock Generator and Crystal Interface
9
11
H3
XTALI
I
I
N/A
N/A
Baseband core supply
Ground
I
I
VDDO
VDDM
I/O pad and core supply
I/O pad supply
I
VDD_RF
10
1
12
40
G3
A3
XTALO
XTALI32K
O
I
VDD_RF
VDDO
32
39
B3
XTALO32K
O
VDDO
Crystal oscillator input. See “Crystal
Oscillator” on page 25 for options.
Crystal oscillator output.
Low-power oscillator (LPO) input is
used.
Alternative Function:
• P11 and P27 in 32-QFN only
• P11 in 40-QFN only
• P39 in 64-BGA only
Low-power oscillator (LPO) output.
Alternative Function:
• P12 and P26 in 32-QFN only
• P12 in 40-QFN only
• P38 in 64-BGA only
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Pin Descriptions
Table 7: Pin Descriptions (Cont.)
Pin Number
32-Pin QFN 40-pin QFN 64-pin BGA Pin Name
I/O
Power
Domain
Description
Core
18
20
G8
RESET_N
I/O
PU
VDDO
17
19
G7
TMC
I
VDDO
UART
12
14
H5
UART_RXD
I
VDDMa
13
15
G5
UART_TXD
O, PU VDDMa
BSC
15
17
F7
SDA
I/O,
PU
VDDMa
16
18
E8
SCL
I/O,
PU
VDDMa
Data signal for an external I2C device.
Alternative function:
• SPI_1: MOSI (master only)
• GPIO0
• CTS
Clock signal for an external I2C
device.
Alternative function:
• SPI_1: SPI_CLK (master only)
• GPIO1
• RTS
LDOIN
LDOOUT
I
O
LDO
LDO
Battery input supply for the LDO
LDO output
LDO Regulator Power Supplies
2
4
B1
3
5
C1
Active-low system reset with opendrain output & internal pull-up
resistor
Test mode control
High: test mode
Connect to GND if not used.
UART serial input – Serial data input
for the HCI UART interface. Leave
unconnected if not used.
Alternative function:
• GPIO3
UART serial output – Serial data
output for the HCI UART interface.
Leave unconnected if not used.
Alternative Function:
• GPIO2
a. VDDO for 64-pin package.
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BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
19
21
F6
P0
Input
Floating VDDO
•
•
•
•
•
•
•
•
GPIO: P0
Keyboard scan input (row): KSI0
A/D converter input
Peripheral UART: puart_tx
SPI_2: MOSI (master and slave)
IR_RX
60 Hz_main
Not available during TMC=1
20
22
G6
P1
Input
Floating VDDO
•
•
•
•
•
•
GPIO: P1
Keyboard scan input (row): KSI1
A/D converter input
Peripheral UART: puart_rts
SPI_2: MISO (master and slave)
IR_TX
22
24
H8
P2
Input
Floating VDDO
•
•
•
•
•
•
•
GPIO: P2
Keyboard scan input (row): KSI2
Quadrature: QDX0
Peripheral UART: puart_rx
Triac control 2
SPI_2: SPI_CS (slave only)
SPI_2: SPI_MOSI (master only)
21
23
F8
P3
Input
Floating VDDO
•
•
•
•
•
GPIO: P3
Keyboard scan input (row): KSI3
Quadrature: QDX1
Peripheral UART: puart_cts
SPI_2: SPI_CLK (master and slave)
23
25
H7
P4
Input
Floating VDDO
•
•
•
•
•
•
GPIO: P4
Keyboard scan input (row): KSI4
Quadrature: QDY0
Peripheral UART: puart_rx
SPI_2: MOSI (master and slave)
IR_TX
–
26
E6
P5
Input
Floating VDDO
•
•
•
•
•
GPIO: P5
Keyboard scan input (row): KSI5
Quadrature: QDY1
Peripheral UART: puart_tx
SPI_2: MISO (master and slave)
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BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
–
27
F5
P6
PWM2
Input
Floating VDDO
•
•
•
•
•
•
•
GPIO: P6
Keyboard scan input (row): KSI6
Quadrature: QDZ0
Peripheral UART: puart_rts
SPI_2: SPI_CS (slave only)
60Hz_main
Triac control 1
–
28
C5
P7
Input
Floating VDDO
•
•
•
•
•
GPIO: P7
Keyboard scan input (row): KSI7
Quadrature: QDZ1
Peripheral UART: puart_cts
SPI_2: SPI_CLK (master and slave)
24
29
F4
P8
Input
Floating VDDO
• GPIO: P8
• Keyboard scan output (column):
KSO0
• A/D converter input
• External T/R switch control: ~tx_pd
Alternative Function:
• P33 in 32-QFN only
–
3
A1
P9
Input
Floating VDDO
• GPIO: P9
• Keyboard scan output (column):
KSO1
• A/D converter input
• External T/R switch control: tx_pd
–
2
D2
P10
PWM3
Input
Floating VDDO
• GPIO: P10
• Keyboard scan output (column):
KSO2
• A/D converter input
1
40
C2
P11
Input
Floating VDDO
• GPIO: P11
• Keyboard scan output (column):
KSO3
• A/D converter input
• XTALI32K (32-QFN and 40-QFN only)
Alternative Function:
• P27 in 32-QFN only
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
32
39
B2
P12
Input
Floating VDDO
• GPIO: P12
• Keyboard scan output (column):
KSO4
• A/D converter input
• XTALO32K (32-QFN and 40-QFN
only)
Alternative Function:
• P26 in 32-QFN only
29
35
F3
P13
PWM3
Input
Floating VDDO
• GPIO: P13
• Keyboard scan output (column):
KSO5
• A/D converter input
• Triac control 3
Alternative Function:
• P28 in 32-QFN only
30
36
D3
P14
PWM2
Input
Floating VDDO
• GPIO: P14
• Keyboard scan output (column):
KSO6
• A/D converter input
• Triac control 4
Alternative Function:
• P38 in 32-QFN only
31
37
A2
P15
Input
Floating VDDO
• GPIO: P15
• Keyboard scan output (column):
KSO7
• A/D converter input
• IR_RX
• 60Hz_main
–
–
C8
P16
Input
Floating VDDO
• GPIO: P16
• Keyboard scan output (column):
KSO8
–
–
H4
P17
Input
Floating VDDO
• GPIO: P17
• Keyboard scan output (column):
KSO9
• A/D converter input
–
–
C7
P18
Input
Floating VDDO
• GPIO: P18
• Keyboard scan output (column):
KSO10
• A/D converter input
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
–
–
B8
P19
Input
Floating VDDO
• GPIO: P19
• Keyboard scan output (column):
KSO11
• A/D converter input
–
–
A8
P20
Input
Floating VDDO
• GPIO: P20
• Keyboard scan output (column):
KSO12
• A/D converter input
–
–
C6
P21
Input
Floating VDDO
• GPIO: P21
• Keyboard scan output (column):
KSO13
• A/D converter input
• Triac control 3
–
–
G4
P22
Input
Floating VDDO
• GPIO: P22
• Keyboard scan output (column):
KSO14
• A/D converter input
• Triac control 4
–
–
E3
P23
Input
Floating VDDO
• GPIO: P23
• Keyboard scan output (column):
KSO15
• A/D converter input
27
33
A7
P24
Input
Floating VDDO
• GPIO: P24
• Keyboard scan output (column):
KSO16
• SPI_2: SPI_CLK (master and slave)
• SPI_1: MISO (master only)
• Peripheral UART: puart_tx
26
32
B7
P25
Input
Floating VDDO
• GPIO: P25
• Keyboard scan output (column):
KSO17
• SPI_2: MISO (master and slave)
• Peripheral UART: puart_rx
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BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
32
38
A4
P26
PWM0
Input
Floating VDDO
• GPIO: P26
• Keyboard scan output (column):
KSO18
• SPI_2: SPI_CS (slave only)
• SPI_1: MISO (master only)
• Optical control output: QOC0
• Triac control 1
Alternative Function:
• P12 in 32-QFN only
Current: 16 mA
1
1
B4
P27
PWM1
Input
Floating VDDO
• GPIO: P27
• Keyboard scan output (column):
KSO19
• SPI_2: MOSI (master and slave)
• Optical control output: QOC1
• Triac control 2
Alternative Function:
• P11 in 32-QFN only
Current: 16 mA
29
–
B5
P28
PWM2
Input
Floating VDDO
• GPIO: P28
• Optical control output: QOC2
• A/D converter input
• LED1
• IR_TX
Alternative Function:
• P13 in 32-QFN only
Current: 16 mA
–
–
A5
P29
PWM3
Input
Floating VDDO
• GPIO: P29
• Optical control output: QOC3
• A/D converter input
• LED2
• IR_RX
Current: 16 mA
–
–
E4
P30
Input
Floating VDDO
•
•
•
•
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September 9, 2013 • 20730-DS108-R
GPIO: P30
A/D converter input
Pairing button pin in default FW
Peripheral UART: puart_rts
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
–
–
E7
P31
Input
Floating VDDO
•
•
•
•
GPIO: P31
A/D converter input
EEPROM WP pin in default FW
Peripheral UART: puart_tx
25
31
D6
P32
Input
Floating VDDO
•
•
•
•
•
•
•
GPIO: P32
A/D converter input
Quadrature: QDX0
SPI_2: SPI_CS (slave only)
SPI_1: MISO (master only)
Auxiliary clock output: ACLK0
Peripheral UART: puart_tx
24
30
D8
P33
Input
Floating VDDO
• GPIO: P33
• A/D converter input
• Quadrature: QDX1
• SPI_2: MOSI (slave only)
• Auxiliary clock output: ACLK1
• Peripheral UART: puart_rx
Alternative Function:
• P8 in 32-QFN only
–
–
B6
P34
Input
Floating VDDO
•
•
•
•
•
GPIO: P34
A/D converter input
Quadrature: QDY0
Peripheral UART: puart_rx
External T/R switch control: tx_pd
–
–
D5
P35
Input
Floating VDDO
•
•
•
•
GPIO: P35
A/D converter input
Quadrature: QDY1
Peripheral UART: puart_cts
–
–
C4
P36
Input
Floating VDDO
•
•
•
•
•
•
•
GPIO: P36
A/D converter input
Quadrature: QDZ0
SPI_2: SPI_CLK (master and slave)
Auxiliary Clock Output: ACLK0
Battery detect pin in default FW
External T/R switch control: ~tx_pd
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BCM20730 Data Sheet
Pin Descriptions
Table 8: GPIO Pin Descriptionsa (Cont.)
Pin Number
32-Pin 40-pin 64-pin
Default
After
QFN
QFN
BGA
Pin Name Direction POR
Power
Domain Alternate Function Description
–
–
C3
P37
Input
Floating VDDO
•
•
•
•
•
GPIO: P37
A/D converter input
Quadrature: QDZ1
SPI_2: MISO (slave only)
Auxiliary clock output: ACLK1
30
–
B3
P38
Input
Floating VDDO
• GPIO: P38
• A/D converter input
• SPI_2: MOSI (master and slave)
• IR_TX
• XTALO32K (64-BGA only)
Alternative Function:
• P14 in 32-QFN only
–
–
A3
P39
Input
Floating VDDO
•
•
•
•
•
•
•
GPIO: P39
SPI_2: SPI_CS (slave only)
SPI_1: MISO (master only)
Infrared control: IR_RX
External PA ramp control: PA_Ramp
XTALI32K (64-BGA only)
60Hz_main
a. During Power-On Reset, all inputs are disabled.
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BCM20730 Data Sheet
Ball Maps
Ball Maps
P32
P25
P24
VDDO
P13/P28
P14/P38
P15
P12/P26/XTALO32K
Figure 9: 32-Pin QFN Ball Map
32 31 30 29 28 27 26 25
P11/P27/XTALI32K
1
24
P8/P33
LDO_IN
2
23
P4
LDO_OUT 3
22
P2
VDDIF
4
21
P3
VDDFE
5
20
P1
RF
6
19
P0
VDDVCO
7
18
RST_N
VDDPLL
8
17
TMC
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September 9, 2013 • 20730-DS108-R
SCL
SDA
VDDM
UART_TXD
UART_RXD
VDDC
10 11 12 13 14 15 16
XTALO
XTALI
9
®
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Ball Maps
XTALI32K/P11
XTALO32K/P12
P26/PWM0
P15
P14
P13
VDDO
P24
P25
P32
Figure 10: 40-pin QFN Ball Map
40
39
38
37
36
35
34
33
32
31
28
P7
LDOIN
4
27
P6
LDOOUT
5
26
P5
VDDIF
6
25
P4
VDDFE
7
24
P2
RF
8
23
P3
VDDVCO
9
22
P1
VDDPLL
10
21
P0
11
12
13
14
15
16
17
18
19
20
RESET_N
3
TMC
P9
SCL
P8
SDA
29
VDDM
2
UART_TXD
P10
UART_RXD
P33
VDDC
30
XTALO
1
XTALI
P27/PWM1
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BCM20730 Data Sheet
Ball Maps
Figure 11: 64-pin BGA Ball Map
1
2
3
4
5
6
7
8
A
P9
P15
P39/
XTALI32K
P26/
PWM0
P29/
PWM3
VDDO
P24
P20
A
B
LDOIN
P12
P38/
XTALO32K
P27/
PWM1
P28/
PWM2
P34
P25
P19
B
C
LDOOUT
P11
P37
P36
P7
P21
P18
P16
C
D
VDDIF
P10
P14
VSS
P35
P32
VDDO
P33
D
E
VDDFE
VSS
P23
P30
VSS
P5
P31
SCL
E
F
RF
VSS
P13
P8
P6
P0
SDA
P3
F
G
VSS
VSS
XTALO
P22
UART_
TXD
P1
TMC
RESET
_N
G
H
VDDVCO
VDDPLL
XTALI
P17
UART_
RXD
VDDC
P4
P2
H
1
2
3
4
5
6
7
8
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BCM20730 Data Sheet
Specifications
Section 3: Specifications
Electrical Characteristics
Table 9 shows the maximum electrical rating for voltages referenced to VDD pin.
Table 9: Maximum Electrical Rating
Rating
Symbol
Value
Unit
DC supply voltage for RF domain
DC supply voltage for core domain
DC supply voltage for VDDM domain (UART/I2C)
DC supply voltage for VDDO domain
DC supply voltage for VR3V
DC supply voltage for VDDFE
Voltage on input or output pin
Operating ambient temperature range
Storage temperature range
–
–
–
–
–
–
–
Topr
Tstg
1.4
1.4
3.8
3.8
3.8
1.4
VSS – 0.3 to VDD + 0.3
0 to +70
–40 to +125
V
V
V
V
V
V
V
°C
°C
Table 10 shows the power supply characteristics for the range TJ = 0 to 125°C.
Table 10: Power Supply
Parameter
Minimuma
Typical
Maximuma
Unit
DC supply voltage for RF
DC supply voltage for Core
DC supply voltage for VDDM (UART/I2C)
DC supply voltage for VDDO
DC supply voltage for LDOIN
DC supply voltage for VDDFE
Supply noise for VDDO (peak-to-peak)
Supply noise for LDOIN (peak-to-peak)
1.14
1.14
1.62
1.62
1.425
1.14
–
–
1.2
1.2
–
–
–
1.2b
–
–
1.26
1.26
3.63
3.63
3.63
1.26
100
100
V
V
V
V
V
V
mV
mV
a. Overall performance degrades beyond minimum and maximum supply voltages.
b. 1.2V for Class 2 output with internal VREG.
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BCM20730 Data Sheet
Electrical Characteristics
Table 12 shows the digital level characteristics for (VSS = 0V).
Table 11: LDO Regulator Electrical Specifications
Parameter
Conditions
Min
Typ
Max
Unit
Input voltage range
Default output voltage
Output voltage
–
–
Range
Step size
Accuracy at any step
–
Vin from 1.425 to 3.63V, Iload = 30 mA
Iload from 1 µA to 30 mA, Vin = 3.3V,
Bonding R = 0.3Ω
No load @Vin = 3.3V
*Current limit enabled
Vin = 3.3V, worst@70°C
1.425
–
0.8
–
–5
–
–0.2
–
–
1.2
–
40 or 80
–
–
–
0.1
3.63
–
1.4
–
+5
30
0.2
0.2
V
V
V
mV
%
mA
%VO/V
%VO/mA
–
6
–
µA
–
5
200
nA
Load current
Line regulation
Load regulation
Quiescent current
Power-down current
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BCM20730 Data Sheet
Electrical Characteristics
Table 12: ADC Specifications
Parameter
Symbol
ADC Characteristics
Number of Input
–
channels
Channel switching rate fch
Input signal range
Vinp
Reference settling time –
Input resistance
Rinp
Input capacitance
Cinp
Conversion rate
fC
Conversion time
TC
Resolution
R
Effective number of
–
bits
Absolute voltage
measurement error
Current
Power
Leakage current
Power-up time
Integral nonlinearity3
Differential
nonlinearitya
–
I
P
Ileakage
Tpowerup
INL
DNL
Conditions
Min
Typ
Max
Unit
–
–
28
–
–
–
–
Changing refsel
Effective, single-ended
–
–
–
–
–
–
0
7.5
–
–
5.859
5.35
–
–
133.33
3.63
–
–
5
187
170.7
–
–
kch/s
V
μs
kΩ
pF
kHz
μs
bits
Using on-chip ADC firmware
driver
Iavdd1p2 + Iavdd3p3
–
T = 25°C
–
–
–
–
–
–
–
500
–
–
–
16
See
Table 1 on
page 18
±2
–
%
–
–
–
–
–1
–1
–
1.5
–
–
–
–
1
–
100
200
1
1
mA
mW
nA
μs
LSBa
LSBa
a. LSBs are expressed at the 10-bit level.
Table 13: Digital Levela
Characteristics
Symbol
Min
Typ
Max
Unit
Input low voltage
Input high voltage
Input low voltage (VDDO = 1.62V)
Input high voltage (VDDO = 1.62V)
Output low voltageb
Output high voltageb
Input capacitance (VDDMEM domain)
VIL
VIH
VIL
VIH
VOL
VOH
CIN
–
0.75 × VDDO
–
1.2
–
VDDO – 0.4
–
–
–
–
–
–
–
0.12
0.4
–
0.4
–
0.4
–
–
V
V
V
V
V
V
pF
a. This table is also applicable to VDDMEM domain.
b. At the specified drive current for the pad.
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BCM20730 Data Sheet
Electrical Characteristics
Table 14: Current Consumption a
Operational Mode
Conditions
Receive
Receiver and baseband are both operating, 100%
ON.
Transmit
Transmitter and baseband are both operating,
100% ON.
DM1
Average current when the device is in the transmit
state, 100% utilization of available slots.
DH1
Average current when the device is in the receive
state, 100% utilization of available slots.
Sleep
Internal LPO is in use.
HIDOFF
–
Sniff mode, 11.25 ms Slave
Sniff mode, 22.5 ms Slave
Sniff mode, 60 ms
Slave
Sniff mode, 100 ms Slave
Sniff mode, 495 ms Slave
Typ
Max
Unit
–
26.6
mA
–
15.2
24 at 2 dBm, mA
19 at 0 dBm
–
mA
16.67
–
mA
28.4
1.5
2.8
1.27
750
500
125
–
–
–
–
–
–
–
μA
μA
mA
mA
μA
μA
μA
a. Current consumption measurements are taken at VBAT with the assumption that VBAT is connected to VDDIO
and LDOIN.
Caution! This device is susceptible to permanent damage from electrostatic discharge (ESD). Proper
precautions are required during handling and mounting to avoid excessive ESD.
Table 15: ESD Tolerance
Model
Tolerance
Human Body Model (HBM)
Charged Device Model (CDM)
Machine Model (MM)
± 2000V
± 400V
± 150V
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BCM20730 Data Sheet
RF Specifications
RF Specifications
Table 16: Receiver RF Specifications
Parameter
Mode and Conditions
Receiver Section
Frequency range
–
RX sensitivity (standard)
GFSK, 0.1%BER, 1 Mbps
RX sensitivity (low current)
Input IP3
–
Maximum input
–
Interference Performance
C/I cochannel
GFSK, 0.1%BERa
C/I 1 MHz adjacent channel
GFSK, 0.1%BERa
C/I 2 MHz adjacent channel
GFSK, 0.1%BERa
C/I ≥ 3 MHz adjacent channel
GFSK, 0.1%BERb
C/I image channel
GFSK, 0.1%BERa
C/I 1 MHz adjacent to image
GFSK, 0.1%BERa
channel
Out-of-Band Blocking Performance (CW)b
30 MHz to 2000 MHz
0.1%BER
2000 MHz to 2399 MHz
0.1%BER
2498 MHz to 3000 MHz
0.1%BER
3000 MHz to 12.75 GHz
0.1%BER
Spurious Emissions
30 MHz to 1 GHz
–
1 GHz to 12.75 GHz
–
Min
Typ
Max
Unit
2402
–
–
–16
–10
–
–88.0
–84.0
–
–
2480
–84.0
–
–
–
MHz
dBm
dBm
dBm
dBm
–
–
–
–
–
–
–
–
–
–
–
–
11.0
0.0
–30.0
–40.0
–9.0
–20.0
dB
dB
dB
dB
dB
dB
–
–
–
–
–10.0
–27
–27
–10.0
–
–
–
–
dBm
dBm
dBm
dBm
–
–
–
–
–57.0
–55.0
dBm
dBm
a. Desired signal is 10 dB above the reference sensitivity level (defined as –70 dBm).
b. Desired signal is 3 dB above the reference sensitivity level (defined as –70 dBm).
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BCM20730 Data Sheet
RF Specifications
Table 17: Transmitter RF Specifications
Parameter
Transmitter Section
Frequency range
Output power adjustment range
Default output power
Output power variation
20 dB bandwidth
Adjacent Channel Power
|M – N| = 2
|M – N| ≥ 3
Out-of-Band Spurious Emission
30 MHz to 1 GHz
1 GHz to 12.75 GHz
1.8 GHz to 1.9 GHz
5.15 GHz to 5.3 GHz
LO Performance
Initial carrier frequency tolerance
Frequency Drift
DH1 packet
DH3 packet
DH5 packet
Drift rate
Frequency Deviation
Average deviation in payload
(sequence used is 00001111)
Maximum deviation in payload
(sequence used is 10101010)
Channel spacing
Min
Typ
Max
Unit
2402
–6.0
–
–
–
–
–
4.0
2.0
900
2480
4.0
–
–
1000
MHz
dBm
dBm
dB
kHz
–
–
–
–
–20
–40
dBm
dBm
–
–
–
–
–
–
–
–
–36.0
–30.0
–47.0
–47.0
dBm
dBm
dBm
dBm
–
–
±75
kHz
–
–
–
–
–
–
–
–
±25
±40
±40
20
kHz
kHz
kHz
kHz/50 µs
140
–
175
kHz
115
–
–
kHz
–
1
–
MHz
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BCM20730 Data Sheet
Timing and AC Characteristics
Timing and AC Characteristics
In this section, use the numbers listed in the Reference column of each table to interpret the following timing
diagrams.
UART Timing
Table 18: UART Timing Specifications
Reference
Characteristics
Min
Max
Unit
1
Delay time, UART_CTS_N low to UART_TXD valid
–
24
2
Setup time, UART_CTS_N high before midpoint of stop –
bit
Delay time, midpoint of stop bit to UART_RTS_N high –
10
Baud out
cycles
ns
3
2
Baud out
cycles
Figure 12: UART Timing
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BCM20730 Data Sheet
Timing and AC Characteristics
SPI Timing
The SPI interface supports clock speeds up to 12 MHz with VDDIO ≥ 2.2V. The supported clock speed is 6 MHz
when 2.2V ≥ VDDIO ≥ 1.62V.
Figure 13 shows the timing diagram. SPI timing values for different values of SCLK and VDDM are shown in
Table 19, Table 20 on page 50, Table 21 on page 50, Table 22 on page 51.
Figure 13: SPI Timing Diagram
5
CS
6
SCLK
Mode 1
SCLK
Mode 3
2
1
MSB
MOSI
LSB
4
3
Invalid bit
MISO
MSB
LSB
Table 19: SPI1 Timing Values — SCLK = 12 MHz and VDDM = 3.2Va
Reference Characteristics
Symbol
Min
Typicalb
Max
Unit
1
Tds_mo
–
20
–
ns
Tdh_mo
–
63
–
ns
Tds_mi
–
TBD
–
ns
Tdh_mi
–
TBD
–
ns
Tsu_cs
½ SCLK period – 1
–
–
ns
Thd_cs
½ SCLK period
–
–
ns
2
3
4
5c
6c
Output setup time, from MOSI
data valid to sample edge of SCLK
Output hold time, from sample
edge of SCLK to MOSI data update
Input setup time, from MISO data
valid to sample edge of SCLK
Input hold time, from sample
edge of SCLK to MISO data update
Time from CS assert to first SCLK
edge
Time from first SCLK edge to CS
deassert
a. The SCLK period is based on the limitation of Tds_mi. SCLK is designed for a maximum speed of 12 MHz. The
speed can be adjusted to as low as 400 Hz by configuring the firmware.
b. Typical timing based on 20 pF/1 MΩ load and SCLK = 12 MHz.
c. CS timing is firmware controlled.
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BCM20730 Data Sheet
Timing and AC Characteristics
Table 20: SPI1 Timing Values — SCLK = 6 MHz and VDDM = 1.62Va
Reference Characteristics
Symbol
Min
Typicalb
Max
Unit
1
Tds_mo
–
41
–
ns
Tdh_mo
–
120
–
ns
Tds_mi
–
TBD
–
ns
Tdh_mi
–
TBD
–
ns
Tsu_cs
½ SCLK period – 1
–
–
ns
Thd_cs
½ SCLK period
–
–
ns
2
3
4
5c
6c
Output setup time, from MOSI data
valid to sample edge of SCLK
Output hold time, from sample
edge of SCLK to MOSI data update
Input setup time, from MISO
data valid to sample edge of SCLK
Input hold time, from sample
edge of SCLK to MISO data update
Time from CS assert to first SCLK
edge
Time from first SCLK edge to CS
deassert
a. The SCLK period is based on the limitation of Tds_mi. SCLK is designed for a maximum speed of 6 MHz. The
speed can be adjusted to as low as 400 Hz by configuring the firmware.
b. Typical timing based on 20 pF/1 MΩ load and SCLK = 6 MHz.
c. CS timing is firmware controlled.
Table 21: SPI2 Timing Values — SCLK = 12 MHz and VDDM = 3.2Va
Reference Characteristics
Symbol
Min
Typicalb
Max
Unit
1
Tds_mo
–
26
–
ns
Tdh_mo
–
56
–
ns
Tds_mi
–
TBD
–
ns
Tdh_mi
–
TBD
–
ns
Tsu_cs
½ SCLK period – 1
–
–
ns
Thd_cs
½ SCLK period
–
–
ns
2
3
4
5c
6c
Output setup time, from MOSI
data valid to sample edge of SCLK
Output hold time, from sample
edge of SCLK to MOSI data update
Input setup time, from MISO
data valid to sample edge of SCLK
Input hold time, from sample
edge of SCLK to MISO data update
Time from CS assert to first SCLK
edge
Time from first SCLK edge to CS
deassert
a. The SCLK period is based on the limitation of Tds_mi. SCLK is designed for a maximum speed of 12 MHz. The
speed can be adjusted to as low as 400 Hz by configuring the firmware.
b. Typical timing based on 20 pF//1 MΩ load and SCLK = 12 MHz.
c. CS timing is firmware controlled in master mode and can be adjusted as required in slave mode.
BROADCOM
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Timing and AC Characteristics
Table 22: SPI2 Timing Values — SCLK = 6 MHz and VDDM = 1.62Va
Reference Characteristics
Symbol
Min
Typicalb
Max
Unit
1
Tds_mo
–
50
–
ns
Tdh_mo
–
120
–
ns
Tds_mi
–
TBD
–
ns
Tdh_mi
–
TBD
–
ns
Tsu_cs
½ SCLK period – 1
–
–
ns
Thd_cs
½ SCLK period
–
–
ns
Output setup time, from MOSI
data valid to sample edge of SCLK
Output hold time, from sample
edge of SCLK to MOSI data update
Input setup time, from MISO
data valid to sample edge of SCLK
Input hold time, from sample
edge of SCLK to MISO data update
Time from CS assert to first SCLK
edge
Time from first SCLK edge to CS
deassert
2
3
4
5c
6c
a. The SCLK period is based on the limitation of Tds_mi. SCLK is designed for a maximum speed of 6 MHz. The
speed can be adjusted to as low as 400 Hz by configuring the firmware.
b. Typical timing based on 20 pF//1 MΩ load and SCLK = 6 MHz.
c. CS timing is firmware controlled in master mode and can be adjusted as required in slave mode.
BSC Interface Timing
Table 23: BSC Interface Timing Specifications
Reference
Characteristics
Min
Max
Unit
1
Clock frequency
–
kHz
2
3
4
5
6
7
8
9
10
START condition setup time
START condition hold time
Clock low time
Clock high time
Data input hold timea
Data input setup time
STOP condition setup time
Output valid from clock
Bus free timeb
650
280
650
280
0
100
280
–
650
100
400
800
1000
–
–
–
–
–
–
–
400
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
a. As a transmitter, 300 ns of delay is provided to bridge the undefined region of the falling edge of SCL to avoid
unintended generation of START or STOP conditions.
b. Time that the cbus must be free before a new transaction can start.
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BCM20730 Data Sheet
Timing and AC Characteristics
Figure 14: BSC Interface Timing Diagram
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BCM20730 Data Sheet
Mechanical Information
Section 4: Mechanical Information
Figure 15: 32-Pin QFN Package
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BCM20730 Data Sheet
Mechanical Information
Figure 16: 40-pin QFN Package
BROADCOM
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BCM20730 Data Sheet
Mechanical Information
Figure 17: 64-pin FBGA Package
BROADCOM
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BCM20730 Data Sheet
Mechanical Information
Tape Reel and Packaging Specifications
Table 24: BCM20730 5 × 5 × 1 mm QFN, 32-Pin Tape Reel Specifications
Parameter
Value
Quantity per reel
Reel diameter
Hub diameter
Tape width
Tape pitch
2500 pieces
13 inches
7 inches
12 mm
8 mm
Table 25: BCM20730 6 × 6 × 1 mm QFN, 40-Pin Tape Reel Specifications
Parameter
Value
Quantity per reel
Reel diameter
Hub diameter
Tape width
Tape pitch
4000 pieces
13 inches
4 inches
16 mm
12 mm
Table 26: BCM20730 7 × 7 × 0.8 mm WFBGA, 64-Pin Tape Reel Specifications
Parameter
Value
Quantity per reel
Reel diameter
Hub diameter
Tape width
Tape pitch
2500 pieces
13 inches
4 inches
16 mm
12 mm
The top left corner of the BCM20730 package is situated near the sprocket holes, as shown in Figure 18.
BROADCOM
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Mechanical Information
Figure 18: Pin 1 Orientation
Pin 1: Top left corner of package toward sprocket holes
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Ordering Information
Section 5: Ordering Information
Table 27: Ordering Information
Part Number
Package
Ambient Operating Temperature
BCM20730A2KML2G
BCM20730A2KMLG
BCM20730A2KFBG
BCM20730A1KML2G
BCM20730A1KMLG
BCM20730A1KFBG
32-pin QFN
40-pin QFN
64-pin BGA
32-pin QFN
40-pin QFN
64-pin BGA
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
0°C to 70°C
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Acronyms and Abbreviations
A p p e n d i x A : A c ro ny m s a nd A b b re v i at i o ns
The following list of acronyms and abbreviations may appear in this document.
Term
Description
ADC
AFH
AHB
APB
APU
ARM7TDMI-S™
BSC
BTC
COEX
DFU
DMA
EBI
HCI
HV
IDC
IF
IRQ
JTAG
LCU
LDO
LHL
LPO
LV
MIA
PCM
PLL
PMU
POR
PWM
QD
RAM
RF
analog-to-digital converter
adaptive frequency hopping
advanced high-performance bus
advanced peripheral bus
audio processing unit
Acorn RISC Machine 7 Thumb instruction, Debugger, Multiplier, Ice, Synthesizable
Broadcom Serial Control
Bluetooth controller
coexistence
device firmware update
direct memory access
external bus interface
Host Control Interface
high voltage
initial digital calibration
intermediate frequency
interrupt request
Joint Test Action Group
link control unit
low drop-out
lean high land
low power oscillator
LogicVision™
multiple interface agent
pulse code modulation
phase locked loop
power management unit
power-on reset
pulse width modulation
quadrature decoder
random access memory
radio frequency
BROADCOM
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BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Acronyms and Abbreviations
Term
Description
ROM
RX/TX
SPI
SW
UART
UPI
WD
read-only memory
receive, transmit
serial peripheral interface
software
universal asynchronous receiver/transmitter
µ-processor interface
watchdog
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Page 60
BROADCOM CONFIDENTIAL
BCM20730 Data Sheet
Broadcom® Corporation reserves the right to make changes without further notice to any products
or data herein to improve reliability, function, or design.
Information furnished by Broadcom Corporation is believed to be accurate and reliable. However,
Broadcom Corporation does not assume any liability arising out of the application or use of this
information, nor the application or use of any product or circuit described herein, neither does it
convey any license under its patent rights nor the rights of others.
®
BROADCOM CORPORATION
5300 California Avenue
Irvine, CA 92617
© 2013 by BROADCOM CORPORATION. All rights reserved.
20730-DS108-R
September 9, 2013
Phone: 949-926-5000
Fax: 949-926-5203
E-mail: [email protected]
Web: www.broadcom.com