STA8088TG Datasheet, PDF (9/16 Pages) STMicroelectronics – GPS/Galileo/Glonass/QZSS tracker

STA8088TG
Table 2. Main function pins (continued)
Symbol
I/O voltage I/O
Functions
RTC_XTO
1.5V (Max)
O Output of the oscillator amplifier circuit.
PPS_OUT
VDD_IOR1
O Pulse per second output
TCXO_OUT
VDD_IOR3
O Buffered TCXO output
Pin description
VFQFPN56
28
33
46
2.5
Test/emulated dedicated pins
Table 3. Test/emulated dedicated pins
Symbol
I/O voltage I/O
Functions
TDO
TDI
TCK
TMS
TRSTn
TP_IF_P
TP_IF_N
VDD_IOR5
VDD_IOR5
VDD_IOR5
VDD_IOR5
VDD_IOR5
VRF12_IF
VRF12_IF
O JTAG test data out
I JTAG test data in
I JTAG test clock
I JTAG test mode select
I JTAG test circuit reset
O Diff.test point for IF – positive
O Diff.test point for IF – negative
VFQFPN56
50
53
56
2
3
5
6
2.6
RF front-end pins
Table 4. RF front-end pins
Symbol
I/O voltage
LNA_IN
VRF12_LNA
LNA_OUT
VRF12_LNA
RFA_IN
XTAL_IN
VRF12_RFA
VRF12_RFDig
XTAL_OUT
VRF12_RFDig
I/O
Functions
I Low noise amplifier input
O Low noise amplifier output
I RF amplifier input
I Input side of crystal oscillator or TCXO input
O Output side of crystal oscillator
VFQFPN56
9
11
15
19
20
Doc ID 022668 Rev 2
9/16