
PRODUCT SUMMARY
CX72303: 1.8 V Ultra-Low Power Bluetooth RF Transceiver
APPLICATIONS
PC and laptop computers
ISM 2.4 GHz frequency band
Personal wireless connectivity
Cellular phones, handsets, headsets, and earpieces
PDAs and palm-top computers
FEATURES
Fully integrated single-chip transceiver with on-chip VCO,
synthesizer, PA, LNA, image-reject downconverter, IF filters,
RSSI, and demodulator for the ISM 2.4 GHz band
Class 2 and 3 Bluetooth v1.1 compliant
–82 dBm typical Rx sensitivity at antenna
Low voltage supply (1.8 V)
Internal dual mode 1.5 V/1.8 V regulator available on
CX72303-61 option; CX72303-11 option offers 1.5 V
regulator only
19 mA peak Tx current at maximum power
24 mA peak Rx current consumption
11 mA peak Tx current at –10 dBm
15
μ
A low power timing clock mode
<1
μ
A power-down current consumption
–40 to +85
°
C Bluetooth-compliant temperature range
–70 to +125
°
C functional temperature range
Digital crystal frequency error compensation up to
±
36 ppm
Programmable Tx power control over 30 dB range with 2 dB
steps
High efficiency direct modulation transmitter using
Σ
fractional-N synthesizer
Low phase noise and closed loop PLL transmitter
Integrated PLL-based FSK digital demodulator. No external
component required
Fast dynamic threshold FSK bit slicer
High reliability, high yield SiGe BiCMOS process with low
multiplicative 1/f noise
Programmable 120 to 180
μ
s synthesizer settling time
Available in a 48-pin BCC++ package
DESCRIPTION
The CX72303 is the lowest powered, fully integrated single-
chip Bluetooth radio transceiver. Fully compliant with
Bluetooth Specification v1.1, the CX72303 was designed from
the ground up for extreme low power operation in handsets,
headsets, or other power sensitive applications. Extreme low
power 1.8 V operation is combined with high performance to
exceed the Bluetooth requirements for Class 2 and 3 operation.
The CX72303 has an internal voltage regulator that allows
operation with higher supply voltages while holding the line on
power consumption. An extended frequency range is provided
to allow operation in all 2.4 GHz Industrial, Scientific, and
Medical (ISM) band regulatory jurisdictions. Transmitter output
power is up to +3 dBm with a typical receiver sensitivity of
–82 dBm at the antenna.
Fabricated in a Silicon-Germanium (SiGe) Bi-polar
Complementary Metal Oxide Semiconductor (BiCMOS) process,
the CX72303 is a state-of-the-art mixed signal device mounted
in a small, low profile 7 x 7 x 0.8 mm Bump Chip Carrier
(BCC++) 48-pin package.
A block diagram of the CX72303 is shown in Figure 1.
103093A
Skyworks Solutions, Inc., Proprietary and Confidential
[781] 376-3000 I FAX [781] 376-3100 I SALES@SKYWORKSINC.COM I WWW.SKYWORKSINC.COM M
1
FEBRUARY 6, 2003