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PDF CX20529 Data sheet ( Hoja de datos )
| Número de pieza | CX20529 | |
| Descripción | CDMA/FM/ GPS BASEBAND ANALOG PROCESSOR | |
| Fabricantes | Skyworks | |
| Logotipo |  |
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PRODUCT SUMMARY
CX20529: CDMA/FM/GPS Baseband Analog Processor
APPLICATIONS
• Tri-band, quad-mode mobile phones (including E911
capabilities)
• GPS receivers
The CX20529 is a receive-only Baseband Analog Processor
(BAP) that can be used for Code Division Multiple Access
(CDMA), Advanced Mobile Phone System (AMPS) Frequency
Modulation (FM), and Global Positioning System (GPS)
baseband signals. The device is designed for dual-mode CDMA
and AMPS portable phones with GPS capability.
FEATURES
The CX20529 is designed to interface between the Radio
• Single supply voltage 2.7 to 3.3 V
• Operational temperature –30 °C to +85 °C
• Low power consumption in all operating modes including
sleep operation
• Dual mode for CDMA and FM operation with GPS position
location capability
• Receive signal path includes:
− Separate CDMA, FM, GPS filters, and A/Ds
Frequency (RF) receive section and the digital processing
circuitry of the telephone. The device includes all of the
circuitry needed to support the receive baseband signal
processing and conversions between analog and digital signals
for CDMA, AMPS (FM), and GPS operation. For a given
operation, the CX20529 accepts analog baseband In-phase (I)
and Quadrature-phase (Q) signals, performs channel selection
low-pass filtering, and converts the analog baseband signals
into digital signals. For clock generation, the CX20529 includes
− DC offset control loop
internal digital and Phase-Locked Loop (PLL) clock synthesis
• Receive VHF PLL synthesizer:
for 19.2, 19.68, and 19.8 MHz system clocks. The device also
− Programmable charge pump current
− Lock detector output
provides the capability to generate or to accept the CHIPx8
DataSheet4Uc.lcoockmto or from the Mobile Station Modem (MSM) or
• System clock generation:
− 19.2, 19.68, and 19.8 MHz system clock support
− Accepts external CHIPx8 clock
equivalent baseband device. The CX20529 also integrates a
VHF PLL synthesizer to synthesize the receive Intermediate
Frequency (IF).
(9.8304 MHz or 8.184 MHz) and generates an internal
CHIPx8 clock (9.8304 MHz)
− Adjustable TCXO or TCXO/4 clock output driver levels and
power-down capability
− Provides a TCXO clock through the TCXO/4 output pin
• Mode control logic for Rx, sleep, idle, and GPS modes
The CX20529 is characterized for operation from a power
supply voltage range of 2.7 V to 3.4 V, with power control logic
maintaining a minimum power consumption. Electrical
performance parameters are designed to operate over the
–30 °C to +85 °C range. The device is available in 40-pin
6 x 6 mm Land Grid Array (LGA) package. A system block
• Pin-for-pin and functionality compatible with the CX20489
diagram of the CX20529 is shown in Figure 1.
(but with GPS processing capability added)
• Available in a 40-pin, 6 x 6 mm LGA package
DataShee
DataSheet4U.com
103082A
Skyworks Solutions, Inc. Proprietary and Confidential
[781] 376-3000 I FAX [781] 376-3100 I [email protected] I WWW.SKYWORKSINC.COM
1
FEBRUARY 4, 2003
1 page | ||
| Páginas | Total 2 Páginas | |
| PDF Descargar | [ Datasheet CX20529.PDF ] | |
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