ST5481

14/18

Table 9 : Crystal Oscillator (XTALin, XTALout)

Note

Manufacturer example: Ref MMD A20BA1- 15.36MHz

10.3 - Universal Serial Bus Interface

See Chapter 7 of USB rev1.0 for complete Electrical Specification

See Chapter 7 of USB rev1.0 for complete Electrical Specification.

Note

Excludes external resistor. In order to comply with USB Specification 1.0, external series resistors of 27

Ω ±1% each on DP and DM

are recommended.

AC Characteristics (DP, DM)

See Chapter 7.3.2 of USB rev1.0 for complete Electrical Specification.

Symbol

Parameter

Minimum

Typical

Maximum

Unit

Low level input voltage

V

High level input voltage

V

Low level input Current

-TBD

uA

High Level Output Current

TBD

uA

ESR

Electrical Serial Resistor

25

Ω

CO

Shunt capacitance

7

pF

Table 10 : 48MHz Internal PLL

Symbol

Parameter

Minimum

Typical

Maximum

Unit

JiTTER

Jitter peak-peak Magnitude

0.35

5

ns

Lock Time

High level input voltage

60

100

us

Table 11 : USB Nominal DC Characteristics (DP, DM)

Symbol

Parameter

Minimum

Typical

Maximum

Unit

Differential Input Sensitivity [(DP)-(DM)]

0.2

V

Differential Common Mode Range

0.8

2.5

V

Single Ended Receiver Threshold

0.8

2

V

High Level output Static voltage (RL of 15K

Ω to GND)

2.5

3.6

V

Low level input Static voltage (RL of 1.5K

Ω to 3.6V)

0.3

V

Hi-Z State Data Line Leakage Current (0v <Vin <3,3V)

± 10

uA

Transceiver Capacitance (Pin to GND)

20

pF

Driver Output Resistance (steady state drive)

TBD

TBD

k

Ω