mcimx50 Freescale Semiconductor, Inc, mcimx50 Datasheet - Page 97

• Manufacturer Part Number: mcimx50
• Description: I.mx50 Applications Processors For Consumer Products
• Manufacturer: Freescale Semiconductor, Inc

4.9.11
This section describes the USB OTG PHY and the USB host port PHY parameters.
4.9.11.1 USB PHY AC Parameters
Table 72
4.9.11.2 USB PHY Additional Electrical Parameters
Table 73
4.9.11.3 USB PHY System Clocking (SYSCLK)
Table 74
Freescale Semiconductor
Clock deviation
Rise/fall time
Vcm DC
(dc level measured at receiver connector)
Crossover Voltage
Power supply ripple noise
(analog 3.3 V)
Power supply ripple noise
(analog 2.5 V)
Power supply ripple noise
(Digital 1.2 V)
Parameter
Parameter
Jitter
trise
lists the AC timing parameters for USB PHY.
tfall
lists the parameters for additional electrical characteristics for USB PHY.
lists the USB PHY system clocking parameters
USB PHY Parameters
Parameter
frequency 24 MHz
Reference
Table 73. Additional Electrical Characteristics for USB PHY
Conditions
i.MX50 Applications Processors for Consumer Products, Rev. 0
480Mbps
480Mbps
480Mbps
1.5Mbps
1.5Mbps
1.5Mbps
12Mbps
12Mbps
12Mbps
Conditions
Table 74. USB PHY System Clocking Parameters
—
Table 72. USB PHY AC Timing Parameters
Clock
Min
0.5
0.5
75
75
—
–150
4
4
Min
—
HS Mode
LS/FS Mode
LS Mode
FS Mode
< 160 MHz
< 1.2 MHz
> 1.2 MHz
All conditions
Conditions
Typ
—
—
—
Typ
—
—
–0.05
Min
–50
–10
–50
–50
0.8
1.3
1.3
Max
300
300
0.2
20
20
10
1
Max
150
200
Typ
—
—
0
0
0
0
Electrical Characteristics
Max
0.5
2.5
50
10
50
50
2
2
Unit
ns
ns
ns
Unit
ppm
ps
Unit
mV
mV
mV
V
V
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