WT11 P r e l i m i n a r y V e r s i o n D a t a S h e e t 1 .
Copyright © 2000-2006 Bluegiga Technologies All rights reserved. Bluegiga Technologies assumes no responsibility for any errors, which may appear in this manual. Furthermore, Bluegiga Technologies reserves the right to alter the hardware, software, and/or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. Bluegiga Technologies’ products are not authorized for use as critical components in life support devices or systems.
Contents: 1. Device Features Overview .......................................................................... 4 2. General Description.................................................................................... 5 2.1 Physical Outlook ..........................................................................................5 2.2 Block Diagram and Descriptions.....................................................................6 2.2.1 BlueCore04 ............................................
VERSION HISTORY Version: Date: Author: Comments: 1.0 11.5.2005 MS Preliminary version 1.1 14.9.2005 PR Dimension update 1.2 30.1.2006 MS Images, dimensions interfaces updated. 1.3 6.2.2006 MS Foot print fixed 1.4 2.3.
1. DEVICE FEATURES OVERVIEW • Fully Qualified Bluetooth system v2.0 + EDR, CE and FCC • Class 1, range up to 300 meters • Integrated chip antenna or UFL connector • Industrial temperature range from -40oC to +85oC • Enhanced Data Rate (EDR) compliant with v2.0.E.2 of specification for both 2Mbps and 3Mbps modulation modes • RoHS Compliant • Full Speed Bluetooth Operation with Full Piconet • Scatternet Support • USB version 2.0 compatible • UART with bypass mode • Support for 802.
2. GENERAL DESCRIPTION 2.
2.2 Block Diagram and Descriptions U.FL connector Chip antenna Matching Power amplifier Switch Balun UART SPI PCM BlueCore04 USB PIO RESET +3.3V 8 MBit Flash Memory 26 MHz Crystal WT11 Figure 3: Block Diagram of WT11 2.2.1 BlueCore04 BlueCore4 is a single chip Bluetooth solution which implements the Bluetooth radio transceiver and also an on chip microcontroller. BlueCore4 implements Bluetooth® 2.0+EDR (Enhanced Data Rate) and it can deliver data rates up to 3 Mbps.
2.2.2 Crystal The crystal oscillates at 26MHz. 2.2.3 Flash Flash memory is used for storing the Bluetooth protocol stack and Virtual Machine applications. It can also to the optional external RAM for memory intensive applications. 2.2.4 Balun Balun changes the balanced input/output signal of the module to unbalanced signal of the monopole antenna. 2.2.5 Power amplifier Power amplifier is used to increase the output power to a level required by class 1 specification. 2.2.
2.2.14 Programmable I/O WT11 has a total of 6 digital programmable I/O terminals. These are controlled by firmware running on the device. 2.2.15 Reset This can be used to reset WT11. 2.2.16 802.11 Coexistence Interface Dedicated hardware is provided to implement a variety of coexistence schemes. Channel skipping AFH (Adaptive Frequency Hopping), priority signaling, channel signaling and host passing of channel instructions are all supported. The features are configured in firmware.
2.
General Specifications Item Specification Supply voltage 3.3 V ± 0.1 V regulated voltage. (Noise < 10 mVP-P) Supply current Maximum current in TX mode: 170.0mA Maximum current in RX mode: 170.0mA Frequency range 2400 MHz … 2483.5 MHz (ISM-Band) Guard band 2 MHz < F < 3.
RF input impedance 50 Ω Baseband crystal OSC 26 MHz Output interfaces 6 GPIO, PCM, SPI, UART, USB Operation temperature -40ºC … +85ºC Storage temperature -40ºC … +105ºC Compliance Bluetooth specification, version 2.0 + EDR USB specification USB specification, version 1.
3. ELECTRICAL CHARASTERISTICS Rating Min Max Storage temperature -40°C +150°C Supply Voltage: VDD 3.2V 3.4V Table 2: Absolute Maximum Ratings Operating conditions Min Max Operating Temperature Range: -40°C +85°C Supply Voltage: VDD 3.2V 3.4V Table 3: Recommended Operating Conditions Digital terminals Min Typ Max Unit -0.4 +0.8 V 0.7VDD VDD+0.1 V 0.2 V Input voltage VIL input logic level low (VDD=3.3V) VIH input logic level high Output voltage VOL output logic level (VDD=3.
4. WT11 PIN DESCRIPTION The PIN description of WT11 is shown in the table below. No.
18 PIO6 I/O Programmable I/O lines 19 PIO7 I/O Programmable I/O lines 20 PIO4 I/O Programmable I/O lines 21 NCSB I 22 SCLK I/O 23 MISO O SPI data output (pull down) 24 MOSI I SPI data input (pull down) 25 PIO5 I/O 26 TXD O UART TX (internal pull up) 27 NC - NC, not used in WT11 module.
5.
6. ANTENNA KEEP OUT AREA Figure 6: PCB design around ACX antenna Figure four above illustrates how PCB design around the antenna of WT11 should be made. The most important thing is that there is no copper (ground plane or traces) underneath or in the close proximity of the ACX antenna. It’s also very important to have grounding vias all the way in the border between ground plane and free space, as illustrated with black and gray dots in figure 4.
7.
Physical Interfaces 7.1 UART Interface WT11 Universal Asynchronous Receiver Transmitter (UART) interface provides a simple mechanism for communicating with other serial devices using the RS232 standard1. UART_TX UART_RX WT12 UART_RTS UART_CTS Figure 8: WT11 UART interface Four signals are used to implement the UART function, as shown in Figure 11.12. When WT11 is connected to another digital device, UART_RX and UART_TX transfer data between the two devices.
Federal Communications Commission (FCC) Statement 15.21 You are cautioned that changes or modifications not expressly approved by the part responsible for compliance could void the user’s authority to operate the equipment. 15.105(b) This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
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