Cypress EZ-USB HX2LP - Manual (Page 19)

CY7C656xx PRELIMINARY
Document #: 38-08037 Rev. *D Page 19 of 23
11.0 Upstream USB Connection
The following is a schematic of the USB upstream connector.
12.0 Downstream USB Connections
The following is a schematic of the USB downstream
connector.
13.0 LED Connections
The following is a schematic of the LED circuitry.
Figure 11-1. USB Upstream Port Connection
VCC
D–
D+
SHELL
BUSPOWER
GND
4.7 nF 250V
1 M Ω
D–
D+
100 k Ω
2.2 µ F
10V
Figure 12-1. USB Downstream Port Connection
VCC
D–
GND
SHELL
D+
DD–[X]
DD+[X]
PWRx
150 µF
10V
0.01 µF
Figure 13-1. USB Downstream Port Connection
680 Ω
680 Ω
GREEN#[x]
AMBER#[x]
3.3V