Data Sheet

SARA-R4/N4 series - Data Sheet
UBX-16024152 - R16 Electrical specifications Page 27 of 39
4.2.11 USB pins
USB data lines (USB_D+/ USB_D–) are compliant to the USB 2.0 high-speed specification. See the
Universal Serial Bus Revision 2.0 specification [10] for detailed electrical characteristics.
Parameter
Min.
Typical
Max.
Unit
Remarks
USB detection voltage on pin VUSB_DET
4.40
5.00
5.25
V
High-speed squelch detection threshold
(input differential signal amplitude)
100
150
mV
High speed disconnect detection threshold
(input differential signal amplitude)
525
625
mV
High-speed data signaling input
common mode voltage range
-50
500
mV
High-speed idle output level
-10
10
mV
High-speed data signaling output high level
360
440
mV
High-speed data signaling output low level
-10
10
mV
Chirp J level (output differential voltage)
700
1100
mV
Chirp K level (output differential voltage)
-900
-500
mV
Table 22: USB pin characteristics
4.2.12 Generic Digital Interfaces pins
Parameter
Min
Typical
Max
Unit
Remarks
Internal supply for GDI domain
1.80
V
Digital I/O Interfaces supply (V_INT)
Low-level input
-0.30
0.00
0.63
V
High-level input
1.17
1.80
2.10
V
Low-level output
0.00
0.45
V
Max value at IOL = +2.0 mA
High-level output
1.35
1.80
V
Min value at IOH = –2.0 mA
Input leakage current
-1
1
µA
V
IN
=0 V or V
IN
=1.8V
Internal pull-up / pull-down
resistance
55
390
k
Table 23: GDI pin characteristics
4.2.13 DDC (I
2
C) pins
DDC (I
2
C) lines (SCL and SDA) are compliant to the I
2
C-bus standard mode specification. See the
I
2
C-Bus Specification [11] for detailed electrical characteristics.
Parameter
Min
Typical
Max
Unit
Remarks
Internal supply for GDI domain
1.80
V
Digital I/O Interfaces supply (V_INT)
Low-level input
-0.30
0.00
0.63
V
High-level input
1.17
1.80
2.10
V
Low-level output
0.00
0.45
V
Max value at I
OL
= +2.0 mA
Internal pull-up resistance
2.2
k
Input/output leakage current
-1
1
µA
V
IN
=0 V or V
IN
=1.8V
Clock frequency on SCL
100
kHz
Table 24: DDC (I
2
C) pin characteristics