User's Manual

TOBY-R2 series - Data Sheet
UBX-16005785 - R06 Electrical specifications
Page 29 of 41
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 Specification Revision 2.0 [15] for detailed electrical characteristics. The values in Table 22 related to
USB 2.0 high-speed physical layer specifications are for information only.
Parameter
Min.
Typical
Max.
Unit
Remarks
VUSB_DET pin, High-level input
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 pins characteristics
4.2.12 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 [16] for detailed electrical characteristics. The values in Table 23 related to I
2
C-bus standard mode
specifications are for information only.
Parameter
Min
Typical
Max
Unit
Remarks
Internal supply for GDI domain
1.80
V
Digital I/O Interfaces supply (V_INT)
Low-level input
–0.20
0.36
V
High-level input
1.26
2.00
V
Low-level output
0.00
0.35
V
Max value at I
OL
= +1.0 mA
Clock frequency on SCL
100
kHz
Table 23: DDC (I
2
C) pins characteristics