CYWM6935PAEC Cypress Semiconductor Corp, CYWM6935PAEC Datasheet - Page 2

• Manufacturer Part Number: CYWM6935PAEC
• Description: MODULE WIRELESS USB LR
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYWM6935PAEC

• Frequency: 2.4GHz
• Data Rate - Maximum: 62.5kbps
• Modulation Or Protocol: GFSK
• Applications: AMR, ISM, RKE
• Power - Output: -16dBm
• Sensitivity: -95dBm
• Voltage - Supply: 3 V ~ 3.6 V
• Data Interface: Connector, 2 x 6 Header, 2mm Pitch
• Package / Case: Module
• Peak Reflow Compatible (260 C): No
• Supply Voltage: 3.3V
• Internal Oscillator Frequency: 24MHz
• Supply Voltage Max: 3.6V
• No. Of Bits: 8 Bit
• Data Rate Max: 62.5Kbps
• Leaded Process Compatible: No
• No. Of Pins: 28
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Operating Temperature: -
• Memory Size: -
• Antenna Connector: -
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 428-2020; CYWM6935PAEC

Document #: 001-07822 Rev. **
3.1
CYWUSB6935 LR Radio
The CYWUSB6935 provides a complete SPI-to-antenna radio
modem.The CYWUSB6935 is designed to implement wireless
devices operating in the worldwide 2.4-GHz Industrial, Scien-
tific, and Medical (ISM) frequency band (2.400 GHz–2.4835
GHz). It is intended for systems compliant with world-wide
regulations covered by ETSI EN 301 489-1V1.4.1, ETSI EN
300 328-1 V1.3.1 (European Countries); FCC CFR 47 Part 15
(USA and Industry Canada) and ARIBSTD-T66 (Japan).
The CYWUSB6935 contains a 2.4-GHz radio transceiver, a
GFSK modem, and a dual DSSS reconfigurable baseband.
The radio and baseband are both code- and frequency-
agile.Forty-nine spreading codes selected for optimal perfor-
mance (Gold codes) are supported across 78 1-MHz channel
yielding a theoretical spectral capacity of 3822 channels.
FCC cerification and performance is valid only up to power
level PA5. It is advised not to use the module in levels PA6 and
PA7.
3.2
For the most effective and power efficient communication with
the LR + PA radio module, external antenna INPAQ
DAMA0BM12410205 (Antenna-A) is recommended to be
used with the module.
It is a dipole antenna module, with A0 type appearance. It is a
high frequency coaxial cable type antenna. The operating
frequency range is 2.4 - 2.483 GHz and has a typical
impedance of 50 ohms. The antenna has near omni-direc-
tional radiation pattern in the horizontal plane with a vertical
polarization.
The antenna has an operating range of -20 C - 60 C and can
be stored between -40 C - 80 C.
3.3
An efficienct silicon-germanium power amplifier IC, the
PA2423L is designed specifically for wireless applications in
the 2.4GHz ISM band and well suited for WirelessUSB appli-
cations.
Functional Overview
2.4GHz A0 Type Dipole Antenna
PA2423L SiGe Power Amplifier
PRELIMINARY
It has 45% power add efficiency. It is capable of overcoming
Electrical Properties of the Antenna DAMA0BM12410205
insertion losses of up to 2.5db, between the amplifier output
and antenna input.
It also consists of analog and digital control input to control the
analog input for improving the power added efficiency, and the
power up and power down modes respectively.
3.4
For information on technical details of the WirelessUSB LR
2.4-GHz DSSS Radio SoC such as register settings, timing,
application interfaces, clocking, and power management, refer
to the data sheet of the CYWUSB6935 Radio SoC.
3.5
The CYWM6935PAEC is available as a reference design,
complete with PCB layout files, schematics, and a bill of
materials. The CYWM6935PAEC can be used with the
CY3635 WirelessUSB N:1 sensor development kit, and the
CY3632 WirelessUSB LS development kit using a proper
adapter.
Transmission Parameters of Radio Module
* FCC cerification and performance is valid only up to
power level PA5. It is advised not to use the module in
levels PA6 and PA7.
PA Level
Frequency Range
Radiation Pattern
Admitted Power
PA 7 *
PA 6 *
Electrical wave
PA 5
PA 4
Polarization
Impedance
Return loss
Reference Documentation
Applications Support
VSWR
Item
Gain
17.89 dBm
17.12 dBm
16.19 dBm
15.02 dBm
Transmit
Power
Near omni directional in the
CYWM6935PAEC
Vertical Polarization
2.4~2.4835 GHz
horizontal plane.
- 10dB (max)
Tx Current I
1/2* dipole
2dBi (Typ)
Property
VSWR*2
50 ohms
186.00 mA
178.86 mA
170.87 mA
146.80 mA
1 Watt
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