PT9250_10 Datasheet, PDF (1/4 Pages) Princeton Technology Corp – 48-channel Single Chip GPS Receiver

DESCRIPTION
The PT9250 is an advanced single chip GPS receiver
to integrate baseband, RF and flash memory into the
7mm x 10mm package making for an extremely
compact design. This advanced solution offers
best-in-class acquisition & tracking sensitivity, TTFF
and accuracy. The PT9250 architecture uses an FFT
and Matched Filter that delivers performance
equivalent to more than 75,000 correlators. This
represents a quantum leap forward in GPS
performance. The PT9250’s architecture enables
unmatched TTFF at low signal levels. The PT9250
includes a powerful GPS DSP integrated with a 32-bit
RISC microprocessor, 1Mb of SRAM and 4 Mb flash
memories. The PT9250 also integrates a built-in low
power RTC circuit for low power operation and battery
backup RAM for satellite information. PTC supports full
reference design, demonstration system, software
evaluation tools and other supporting documentation.
APPLICATIONS
 GPS receivers
 Vehicle navigator
 Cellular phone
 PDA
 PMP
BLOCK DIAGRAM
PT9250
48-channel Single Chip GPS Receiver
FEATURES
 Reception frequency : 1575.42 MHz ( L1 band, CA
code)
 Reference clock (TCXO) frequency : 16.368 MHz
or 16.369 MHz
 Best-in-class acquisition and tracking sensitivity,
TTFF and accuracy ¹.
- Tracking sensitivity -159 dBm
- Acquisition sensitivity -142 dBm
- Cold start 33 sec, warm start 32 sec and hot
start 1 sec
- 5m position accuracy for autonomous²
 SoC to integrate major RF receiver, digital
baseband and flash memory
 48 channel acquisition and tracking engine
 32 bits RISC CPU (MIPS)
 Internal Low power Real Time Clock
 Battery back-up SRAM
 2-channel UART communication port
 SPI host interface
 2 External interrupts
 Watch dog timer support
 16 GPIOs
 1 PPS output
 Support NMEA-0183(V3.01)
 140 balls LFBGA
 Temperature range -40⁰C/+85⁰C
Notes :
1. _{Under open sky environment, -130 dBm signal level on PTC}
evaluation platform.
2. _{Under 24hr, 50% possibility and -130 dBm signal level.}
Tel: [phone]‧Fax: [phone]‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan