STA5620 STMicroelectronics, STA5620 Datasheet - Page 17

• Manufacturer Part Number: STA5620
• Description: IC RF FRONT END RECEIVER 32VFQFP
• Manufacturer: STMicroelectronics

Specifications of STA5620

• Modulation Or Protocol: GPS
• Current - Receiving: 19mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.5 V ~ 3.3 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-VFQFN
• Pin Count: 32
• Screening Level: Industrial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Frequency: -
• Applications: -
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Compliant

STA5620
7
7.1
Table 6.
7.2
Table 7.
7.3
Table 8.
Address
0xC0/40
0xC1/41
0xC2/42
0xC3/43
0xD0/50
0xD1/51
0xD2/52
0xE0/60
R/W
Register
Register
address
address
0x40
0x41
0x42
Bit
Registers
Register map
Register map
PLL N divider
PLL N divider
PLL R divider
PLL R divider
Note that registers 40, 41 and 42 are delivered on a single 24 bit bus. New register values
are delivered synchronously to the bus only after register 42 is written.
Name
Name
NDIV
RDIV
ENM
RFE
--------------------------------------------------- NDIV[7:0] ----------------------------------------------------
7
-
-
-
-
XXXX nnnn [3:0]
nnnn nnnn [7:0]
XXrr rrrr [5:0]
Reserved
Bit
Bit
6
-
-
-
-
Reserved
AGC
5
----------------------------------- RDIV[5:0] ----------------------------------
-
-
Default value
Default value
MODE = 0
MODE = 0
(decimal)
(decimal)
96
1
-------------- LFC[2:0] ---------------
IF
4
-
Reserved
Default value
Default value
MODE = 1
MODE = 1
(decimal)
(decimal)
GCE
MIX
3
1555
----------------- NDIV[11:8] -----------------
19
Reserved
XCE
RFA
2
PLL Feedback Divider Division
Ratio
Reference Divider Division
Ratio
Description
Description
LSR
PLL
----- CPI[1,0] -----
1
Registers
MST
VCO
IFB
0
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