Rainbow-electronics MAX3420E Manual de usuario descargar pdf (Pagina 9)

MAX3420E

USB Peripheral Controller

with SPI Interface

_______________________________________________________________________________________ 9

ELECTRICAL CHARACTERISTICS (continued)

= +3V to +3.6V, V

= +1.71V to +3.6V, T

= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at V

= +3.3V, V

+2.5V, T

= +25°C.) (Note 1)

PARAMETER

SYMBOL

CONDITIONS

MIN TYP MAX

UNITS

Single-Ended Receiver Input-Low

Voltage

0.8 V

Single-Ended Receiver Input-

High Voltage

2.0 V

Single-Ended Receiver

Hysteresis Voltage

0.2 V

D+, D- Input Impedance 300 kΩ

D+, D- Output-Low Voltage V

= 1.5kΩ from D+ to 3.6V 0.3 V

D+, D- Output-High Voltage V

= 15kΩ from D+ and D- to GND 2.8 3.6 V

Driver Output Impedance

Excluding External Resistor

(Note 2) 2 7 11 Ω

D+ Pullup Resistor R

EXT

= 33Ω

1.425

1.5

1.575

kΩ

ESD PROTECTION (D+, D-, VBCOMP)

Human Body Model

1µF ceramic capacitors from VBCOMP and

to GND

±15

IEC61000-4-2 Air Discharge

1µF ceramic capacitors from VBCOMP and

to GND

±12

IEC61000-4-2 Contact Discharge

1µF ceramic capacitors from VBCOMP and

to GND

±8 kV

THERMAL SHUTDOWN

Thermal-Shutdown Low-to-High

+160

°C

Thermal-Shutdown High-to-Low

+140

°C

CRYSTAL OSCILLATOR SPECIFICATIONS (XI, XO)

XI Input High Voltage

2/3 x V

C C

XI Input Low Voltage 0.4 V

XI Input Current 10 µA

XI, XO Input Capacitance 3pF

VBCOMP COMPARATOR SPECIFICATIONS

VBCOMP Comparator Threshold

1.0 2.0 3.0 V

VBCOMP Comparator Hysteresis

HYS

375

VBCOMP Comparator Input

Impedance

100 kΩ

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 22 23

MAX3420E 1
USB Peripheral Controller 1

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Rainbow-electronics MAX3420E Manual de usuario Pagina 9

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