Datasheet

1054
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
48.11 USB Transceiver Characteristics
48.11.1 Electrical Characteristics
Table 48-21. Transfer Characteristics
Parameter Min Typ Max Units
Resolution 10 bit
Integral Non-linearity ±2 LSB
Differential Non-linearity
- ADC Clock = 13.2 MHz
- ADC Clock = 5 MHz
±2
±0.9
LSB
Offset Error ±10 mV
Gain Error
- ADC Clock = 13.2 MHz
- ADC Clock = 5 MHz
±3
±2
LSB
Table 48-22. Electrical Parameters
Symbol Parameter Conditions Min Typ Max Unit
Input Levels
V
IL
Low Level 0.8 V
V
IH
High Level 2.0 V
V
DI
Differential Input Sensitivity |(D+) - (D-)| 0.2 V
V
CM
Differential Input Common
Mode Range
0.8 2.5 V
C
IN
Transceiver capacitance Capacitance to ground on each line 9.18 pF
I Hi-Z State Data Line Leakage 0V < V
IN
< 3.3V - 10 + 10 µA
R
EXT
Recommended External USB
Series Resistor
In series with each USB pin with ±5% 27 Ω
Output Levels
V
OL
Low Level Output
Measured with R
L
of 1.425 kΩ tied to
3.6V
0.0 0.3 V
V
OH
High Level Output
Measured with R
L
of 14.25 kΩ tied to
GND
2.8 3.6 V
V
CRS
Output Signal Crossover
Voltage
Measure conditions described in
Figure 48-25
1.3 2.0 V
Pull-up and Pull-down Resistor
R
PUI
Bus Pull-up Resistor on
Upstream Port (idle bus)
0.900 1.575 kOhm
R
PUA
Bus Pull-up Resistor on
Upstream Port (upstream port
receiving)
1.425 3.090 kOhm
R
PD
Bus Pull-down resistor 14.25 24.8 kOhm