CXD2956AGL-1 Datasheet, PDF (1/18 Pages) Sony Corporation – GPS Baseband LSI

GPS Baseband LSI
CXD2956AGL-1
Description
The CXD2956AGL-1 is a dedicated LSI for the GPS
(Global Positioning System), satellite-based location
measurement system.
Compared with conventional methods, position
detection time and sensitivity are substantially
improved with the use of an advanced signal
processing scheme.
Although package sizes differ, the CXD2956AGL-1
has realized compatibility with a foot pattern to the
CXD2963GH.
This LSI used together with the Sony GPS RF down
converter IC enables the configuration of a 2-chip
system capable of measuring its position anywhere
on the globe. The CXD2956AGL-1 is ideal for use in
automotive, cellular handset, handheld navigation,
mobile computing and other location-based applications.
Features
• 12-channel GPS receiver capable of simultaneously
receiving 12 satellites
• Reception frequency: 1575.42MHz
(L1 band, CA code)
• Reference clock (TCXO) frequency:
18.414MHz (GPS, Sony compatible),
• 32-bit RISC CPU (ARM7TDMI)
• 288K-byte Program ROM
• 72K-byte Data RAM
Power is supplied only to 8K-byte Data RAM while
in backup mode.
• System power management
• 1-channel UART
• Internal RTC (Real Time Clock)
• 10-bit successive approximation system A/D
converter
• All-in-view positioning
• Communication format: Supports NMEA-0183
• Supports DGPS (optional)
Conforms to RTCM SC-104 Ver. 2.1 and DARC
• 1 PPS output
• Supports assisted-GPS for cellular (optional)
183 pin VFLGA (Plastic)
Absolute Maximum Ratings
• Supply voltage I/O IOVDD –0.5 to +4.6 V
• Supply voltage core CVDD –0.5 to +2.5 V
• Input voltage
VI
–0.5 to +6 V
• Output voltage
VO
–0.5 to +6 V
• Operating temperature Topr –40 to +85 °C
• Storage temperature Tstg –50 to +150 °C
Recommended Operating Conditions
• Supply voltage I/O IOVDD 3.0 to 3.6
V
∗ _{Under operation with internal ROM, using no}
external expansion bus: IOVDD 2.6 to 3.6V
∗ _{Under operation in backup mode:}
BKUPIOVDD 2.5 (Min.) V
• Supply voltage core CVDD 1.62 to 1.98 V
• Operating temperature Topr –40 to +85 °C
Input/Output Pin Capacitance
• Input capacitance
CIN
9 (Max.) pF
• Output capacitance COUT 11 (Max.) pF
• I/O capacitance
CI/O
11 (Max.) pF
Structure
Silicon gate CMOS IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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