STA5620 STMicroelectronics, STA5620 Datasheet - Page 23

• 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
8.2
Table 15.
Sample mode configuration
Power enable configuration
Bit name
ENM
GCE
VCO
MST
AGC
RFE
XCE
RFA
MIX
PLL
IFB
IF
Default configuration
This table describes the default configuration of the STA5620 internal registers.
Default configuration
Sample clock Source Selector
Default xtal/TCXO frequency
RF Chain Enable
(From the RFA Input to the
AGC Output)
RF Chain Enable
(From the RFA Input to the
AGC Output)
GPS Clock Enable
Automatic Control Gain
Enable
Xtal Clock Enable
IF Output Buffer Enable
Voltage Controlled Oscillator
Enable
IF enable
Mixer enable
RF Amplifier enable
Phase Locked Loop Enable
(Dividers, PFD, Charge
Pump).
Description
0 = Xtal Osc
1 = VCO/96,
0 = RF chain OFF,
1 = RF chain On
If RFE bit or RF_EN pin = 1
0 = controlled by RF_EN pin,
1 = RF chain On
0 = GPS clock Off,
1 = GPS clock On
0 = AGC function Off,
1 = AGC function On
0 = Off,
1 = On
0 = Off,
1 = On
0 = Off,
1 = On
0 = Off,
1 = On
0 = Off,
1 = On
0 = Off,
1 = On
0 = Off,
1 = On
Values
(MODE_EN=0)
Chip enable and reset timing
16.368 MHz
0
1
0
1
1
0
0
1
1
1
1
1
(MODE_EN=1)
19.200 MHz
1
1
0
1
1
1
0
1
1
1
1
1
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