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PDF CXD2956AGL-1 Data sheet ( Hoja de datos )
| Número de pieza | CXD2956AGL-1 | |
| Descripción | GPS Baseband Lsi | |
| Fabricantes | Sony Electronics | |
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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
• Supply voltage core CVDD
• Input voltage
VI
• Output voltage
VO
• Operating temperature Topr
• Storage temperature Tstg
–0.5 to +4.6
–0.5 to +2.5
–0.5 to +6
–0.5 to +6
–40 to +85
–50 to +150
V
V
V
V
°C
°C
Recommended Operating Conditions
• Supply voltage I/O IOVDD 3.0 to 3.6
∗ 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
• Operating temperature Topr –40 to +85
V
V
°C
Input/Output Pin Capacitance
• Input capacitance
CIN
• Output capacitance COUT
• I/O capacitance
CI/O
9 (Max.)
11 (Max.)
11 (Max.)
pF
pF
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.
–1–
E04729-PS
1 page  
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CXD2956AGL-1
Pin Description
Pin
No.
Symbol
I/O
Description
1 EPORT0
I/O/Z
I/O port 0
(with a software controllable pull-down resistor, Pull-up.)
2 EPORT1
I/O/Z
I/O port 1
(with a software controllable pull-down resistor, See software application note.)
3 EPORT2
I/O/Z
I/O port 2
(with a software controllable pull-down resistor, See software application note.)
4 EPORT3
I/O/Z
I/O port 3
(with a software controllable pull-down resistor, See software application note.)
5 EPORT4
I/O/Z
I/O port 4
(with a software controllable pull-down resistor, IF signal input.)
6 EPORT5
I/O/Z
I/O port 5
(with a software controllable pull-down resistor, See software application note.)
7 EPORT6
I/O/Z
I/O port 6
(with a software controllable pull-down resistor, See software application note.)
8 EPORT7
I/O/Z
I/O port 7
(with a software controllable pull-down resistor, See software application note.)
9 EPORT8
I/O/Z
I/O port 8
(with a software controllable pull-down resistor, See software application note.)
10 EPORT9
I/O/Z
I/O port 9
(with a software controllable pull-down resistor, See software application note.)
11 EPORT10
I/O/Z
I/O port 10
(with a software controllable pull-down resistor, See software application note.)
12 EPORT11
I/O/Z
I/O port 11
(with a software controllable pull-down resistor, See software application note.)
13 EPORT12
I/O/Z
I/O port 12
(with a software controllable pull-down resistor, See software application note.)
14 IOVSS1
GND
15 IOVDD1
3.3V
16 ETCXO
17 EXTCXO
I
TCXO oscillator (Frequency selectable, See software application note.)
O
18 CVSS1
GND
19 CVDD1
1.8V
20 TRST
I Test (Open, with a pull-down resistor)
21 ETESTTINT O Test
22 TDO
O Test
23 ETESTTDO O Test
24 TDI
I Test (Open, with a pull-up resistor)
25 ETESTTDI
I Test (Open, with a pull-up resistor)
26 TCK
I Test (Open, with a pull-down resistor)
27 ETESTTCK I Test (Open, with a pull-down resistor)
28 TMS
I Test (Open, with a pull-up resistor)
–5–
5 Page 
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CXD2956AGL-1
DC Characteristics
(IOVDD = 3.0 to 3.6V, CVDD = 1.62 to 1.98V, Ta = –40 to +85°C)
Item
Symbol
Conditions
Min. Typ. Max. Unit
Input voltage∗1
High level VIH
Low level VIL
0.7IOVDD
5.5 V
0.2IOVDD V
Output voltage∗2
High level VOH1
Low level VOL1
IOH = 4mA
IOL = 4mA
2.4 V
0.4 V
Output voltage∗3
Pull-up resistor∗4
Pull-down resistor∗5
High level
Low level
VOH2
VOL2
RU
RD
IOH = 8mA
IOL = 8mA
2.4 V
0.4 V
56 110 kΩ
51 100 kΩ
Current consumption during normal
operation (via IOVDD and CVDD)∗6 IOPE
TCXO = 18.414MHz,
Ta = 25°C
45 mA
Current consumption during backup
operation (via BKUPIOVDD)∗7
ISTB1
BKUPIOVDD = 3.6V, Ta = 25°C
BKUPIOVDD = 3.6V, Ta = 85°C
0.2 1.0 µA
0.2 1.0 µA
Current consumption during backup
operation (via BKUPCVDD)∗8
ISTB2
BKUPCVDD = 1.98V, Ta = 25°C
BKUPCVDD = 1.98V, Ta = 85°C
7.5 15 µA
50 120 µA
Applicable pins
∗1 Pins 1 to 13, 20, 24 to 29, 64 to 66, 98, 119, 120 to 122, 133 to 148, 151, 152, 155 to 170, 173
∗2 Pins 1 to 13, 21 to 23, 97, 174
∗3 Pins 67 to 74, 77 to 80, 83 to 90, 124 to 130, 133 to 148, 155 to 170
∗4 Pins 24, 25, 28, 29, 152
∗5 Pins 1 to 13, 20, 26, 27, 133 to 148, 155 to 170, 173
∗6 Pins 15, 76, 96, 132, 154, 176 (3.3V)
Pins 19, 63, 82, 92, 150, 172 (1.8V)
∗7 Pin 118
∗8 Pin 114
– 11 –
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