MAX3345E Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MAX3345E

±15kV ESD-Protected USB Transceivers in UCSP with USB Detect

Maxim Integrated 

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

D+

D-

tPHL(RCV)

RCV

tPHL(SE)

VPI

tPLH(SE)

VMI

D+/D- RISE/FALL TIMES ≤ 8ns, VL = 1.65V, 2.5V, 3.3V

Figure 5. D+/D- to RCV, VPI, VMI Propagation Delays

3V

0V

tPLH(RCV)

VL

VL/2

0V

tPLH(SE)

VL

VL/2

0V

tPHL(SE)

VL

VL/2

0V

3.3V

D+

1.5kΩ

23.7Ω

TEST POINT

CL= 50pF 15kΩ

MAX3344E

MAX3345E

D-

23.7Ω

TEST POINT

CL= 50pF 15kΩ

USB_DET

25pF

MAX3344E

MAX3345E

VMI OR VPI OR RCV

TEST POINT

25pF

(a) LOAD FOR VPI, VMI, AND RCV

MAX3344E

MAX3345E

D+ OR D-

23.7Ω

TEST POINT

200Ω

50pF

+ GND

- OR VCC

(b) LOAD FOR D+, D-, AND USB_DET

Figure 6. Test Circuits

(c) LOAD FOR ENABLE AND DISABLE TIME, D+/D-

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