
PRELIMINARY
WirelessUSB LR™ Radio Module
CYWM6935
Cypress Semiconductor Corporation
•
3901 North First Street
•
San Jose
, CA 95134
•
408-943-2600
Document #: 38-16013 Rev. **
Revised March 9, 2005
1.0
Features
• The CYWM6935 LR
2.4-GHz DSSS Radio SoC Module
includes radio (CYWUSB6935) , antenna, and all exter-
nal components
• Complete Radio Module with Dual PCB Trace Antennas
• Operates in the unlicensed Industrial, Scientific, and
Medical (ISM) band (2.4 GHz–2.483 GHz)
• –95-dBm receive sensitivity
• Up to 0-dBm output power
• Range of up to 50 meters or more
• Data throughput of up to 62.5 kbits/sec
• SPI microcontroller interface (up to 2 MHz data rate)
• Operating voltage from 2.7V to 3.6V
• Small PCBA Design: 0.95” (23.75 mm) by 0.95” (23.75
mm) by 0.212” (5.3 mm) (L x W x H)
• FCC Modular Approval Grant to meet FCC Part 15, EN
300 328-1, EN 301 489-1, and Industry Canada RSS-210
standards
• An FCC Module Approval (MA) Grant provides
customers significant cost savings, by allowing
customers to adopt the CYWM6935 FCC ID into their
own products
2.0
Functional Description
The CYWM6935 WirelessUSB LR
Radio Module offers a
complete radio module solution for integration into existing or
new 2.4-GHz products.
The CYWM6935 is tested for functional operation and is
FCC/ETSI(EU)/Industry pre-certified. The module is supplied
with dual integrated PCB trace antennas.
The CYWM6935 is available in a small PCBA design and can
be mounted horizontally to the device PCB via a 12-pin
header. The pin-out of the header is shown in Figure 4-1.
3.0
Applications
• Consumer / PC
— Locator Alarms
— Presenter Tools
— Remote Controls
—Toys
• Building/Home Automation
—Climate Control
— Lighting Control
— Smart Appliances
— On-Site Paging Systems
— Alarm and Security
• Industrial Control
— Inventory Management
— Factory Automation
— Data Acquisition
— Automatic Meter Reading (AMR)
• Transportation
— Diagnostics
— Remote Keyless Entry
Figure 3-1. CYWM6935 Module
WirelessUSB LR
CYWUSB6935 Silicon
Vcc
13MHz
Crystal
RFOUT
RFIN
PCB Trace
Antenna
CYWUSB6935
3.9 nH
10
12-pin
2mm
header
1.8 pF
10 pF
PCB Trace
Antenna
CYWUSB6935
Vcc
Bypass capacitors