DWM ADD-ON/DWM Hardware/pdf

General Information

DWM TOP View

DWM TOP View

DWM BOTTOM View

DWM BOTTOM View

Introduction

The module is built around an LS Research TiWi-BLE Integrated Transceiver Modules for WLAN 802.11 b/g/n and Bluetooth. The module implements the necessary PHY/MAC layers to support WLAN applications in conjunction with a host processor over a SDIO interface. The module also provides a Bluetooth platform through the HCI transport layer. Both WLAN and Bluetooth share the same antenna port.

Features

• Based on Texas Instruments WL1271L Transceiver
• IEEE 802.11 b,g,n,d,e,i, compliant
• Bluetooth 2.1+EDR, Power Class 1.5
• Full support for BT4.0 BLE and ANT
• Reduced footprint: 25 mm x 38 mm
• Low height profile
• U.FL connector for external antenna
• Integrated band-pass filter
• Industrial operating temperature range: -40 / +85 °C

Interface timings

Please refer to the TiWi-BLE Datasheet for SDIO [WiFi] and UART [Bluetooth] interface timings.

Hardware versioning and tracking

DWM ADD-ON implements well established versioning and tracking mechanisms:

• PCB version is copper printed on PCB itself, as shown in Fig. 1
• serial number: it is printed on a white label, as shown in Fig. 2: see also Product serial number page for more details

Fig.1 PCB version

Fig.2 Serial number

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Part number composition

DWM ADD-ON part number is identified by the following digit-code table:

Part number structure	Options	Description
DWM		Prefix
RFU	0001	Reserved for future use
Temperature range	I - Industrial grade: -40 to 85°C	For the DAVE Embedded Systems' product Temperature Range classification, please find more information at the page Products Classification
PCB revision	2: Mass production release	PCB release may change for manufacturing purposes (i.e. text fixture adaptation)
Manufacturing option	R: RoHS compliant	typically connected to production process and quality

Example

DWM ADD-ON code DWM0001I2R

• DWM - DWM ADD-ON
• 0001 - standard version
• I - Industrial grade

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Pinout Table

Connectors and Pinout Table

Connectors description

In the following table are described all available connectors integrated on DWM_ADD-ON:

Connector name	Connector Type	Notes	Carrier board counterpart
J1	Dual in line low profile high density connector 30pins	Molex 501920-3001	Molex 52991-030, others are available with different stand-off
Antenna's connector	UFL type	N.A.	UFL cable side (many versions available in the marked already inserted on cables/antenna patches)

The dedicated carrier board must mount the mating connector and connect the desired peripheral interfaces according to DWM pinout specifications. See the images below for reference:

DWM TOP view with antenna's connector

DWM BOTTOM view with main connector

Pinout table naming conventions

This chapter contains the pinout description of the DWM module, grouped in two tables (odd and even pins) that report the pin mapping of the TBD: connector type DWM connector.

Each row in the pinout tables contains the following information:

Pin	Reference to the connector pin
Pin Name	Pin (signal) name on the DWM connectors
Internal connections	Connections to the DWM components CPU.<x> : pin connected to CPU pad named <x> CAN.<x> : pin connected to the CAN transceiver (manufacturer part number) PMIC.<x> : pin connected to the Power Manager IC (manufacturer part number) LAN.<x> : pin connected to the LAN PHY (manufacturer part number) NOR.<x>: pin connected to the flash NOR SV.<x>: pin connected to voltage supervisor MTR: pin connected to voltage monitors
Ball/pin #	Component ball/pin number connected to signal
Voltage	I/O voltage levels
Type	Pin type: I = Input O = Output D = Differential Z = High impedance S = Power supply voltage G = Ground A = Analog signal
Notes	Remarks on special pin characteristics
Pin MUX alternative functions	Muxes: Pin ALT-0 ... Pin ALT-N The number of functions depends on platform

Pinout Table ODD pins declaration

Pin	Pin Name	Internal Connections	Ball/pin #	Voltage domain	Type	Notes	Pin MUX alternative functions
J1.1	BT_EN	Bluetooth Enable		3.3V	I
J1.3	BT_CTS	Bluetooth HCI UART CTS		3.3V	I
J1.5	BT_RX	Bluetooth HCI UART RX		3.3V	I
J1.7	BT_RTS	Bluetooth HCI UART RTS		3.3V	O
J1.9	BT_TX	Bluetooth HCI UART TX		3.3V	O
J1.11	DGND	Ground		-	G
J1.13	DAT3	SDIO Data Bit 3		3.3V	D
J1.15	DAT2	SDIO Data Bit 2		3.3V	D
J1.17	DAT1	SDIO Data Bit 1		3.3V	D
J1.19	DAT0	SDIO Data Bit 0		3.3V	D
J1.21	DGND	Ground		-	G
J1.23	SDO_CMD	SDIO Command Line		3.3V	I/O
J1.25	DGND	Ground		-	G
J1.27	3.3V	+3.3V Input Voltage		3.3V	S
J1.29	5V	+5V Input Voltage		5V	S

Pinout Table EVEN pins declaration

Pin	Pin Name	Internal Connections	Ball/pin #	Voltage domain	Type	Note	Pin MUX alternative functions
J1.2	WIFI_EN	WLAN Enable		3.3V	I
J1.4	WIFI_IRQ	WLAN Interrupt Request		3.3V	O
J1.6	BT_F2	Bluetooth Wakeup		3.3V	I	Please leave unconnected if not used
J1.8	WIFI_CLK_REQ(A)	HOST_WakeUp		3.3V	O	Please leave unconnected if not used
J1.10	NC	Reserved for future use		-		Please leave unconnected.
J1.12	NC	Reserved for future use		-		Please leave unconnected.
J1.14	NC	Reserved for future use		-		Please leave unconnected.
J1.16	NC	Reserved for future use		-		Please leave unconnected.
J1.18	NC	Reserved for future use		-		Please leave unconnected.
J1.20	NC	Reserved for future use		-		Please leave unconnected.
J1.22	DGND	Ground		-	G
J1.24	SDO_CLK	SDIO Clock		3.3V	I
J1.26	DGND	Ground		-	G
J1.28	3.3V	+3.3V Input Voltage		3.3V	S
J1.30	5V	+5V Input Voltage		5V	S

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Electrical, Thermal and Mechanical Features

Operational characteristics

Maximum ratings

Parameter	Min	Typ	Max	Unit
Main power supply voltage	-0.3	3.3	3.6	V

Recommended ratings

Parameter	Min	Typ	Max	Unit
Main power supply voltage	3.135	3.3	3.465	V

Mechanical specifications

This chapter describes the mechanical characteristics of the DWM module.

Board Layout

The following figure shows the physical dimensions of the DWM module:

Connectors

The following figure shows the DWM connector layout:

CAD drawings

• Component view (PDF)
• DXF (2D) file
• step (3D) file