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SARA-R412M 数据表(PDF) 28 Page - u-blox AG

部件名 SARA-R412M
功能描述  LTE Cat M1 / NB1 and EGPRS modules
PDF  43 Pages
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制造商  U-BLOX [u-blox AG]
网页  https://www.u-blox.com/
标志 U-BLOX - u-blox AG

SARA-R412M 数据表(HTML) 28 Page - u-blox AG

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SARA-R4 series - Data sheet
UBX-16024152 - R18
Electrical specifications
Page 28 of 43
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 [11] 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
µ
A
VIN =0 V or VIN =1.8V
Internal pull-up / pull-down
resistance
55
390
k
Table 23: GDI pin characteristics
4.2.13 DDC (I2C) pins
DDC (I2C) lines (SCL and SDA) are compliant to the I2C-bus standard mode specification. See the
I2C-bus specification [12] 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 IOL = +2.0 mA
Internal pull-up resistance
2.2
k
Input/output leakage current
-1
1
µ
A
VIN =0 V or VIN =1.8V
Clock frequency on SCL
100
kHz
Table 24: DDC (I2C) pin characteristics



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