Cypress CY7C656xx manual Upstream USB Connection, Downstream USB Connections, LED Connections

PRELIMINARYCY7C656xx

11.0Upstream USB Connection

The following is a schematic of the USB upstream connector.

VCC

D–

D+

GND

SHELL

BUSPOWER

D–	2.2 ∝F
	10V

D+ 100 kΩ

4.7 nF	250V
1 MΩ

Figure 11-1. USB Upstream Port Connection

12.0Downstream USB Connections

The following is a schematic of the USB downstream connector.

PWRx

150µF

10V

0.01 µF DD–[X]

DD+[X]

VCC

D–

D+

GND

SHELL

Figure 12-1. USB Downstream Port Connection

13.0LED Connections

The following is a schematic of the LED circuitry.

680Ω

GREEN#[x]

3.3V

AMBER#[x]680Ω

Figure 13-1. USB Downstream Port Connection

Document #: 38-08037 Rev. *D Page 19 of 23