Microchip Technology EVB-USB4x12 User Manual page 30

FIGURE B-3: EVB-USB4X12 EVALUATION BOARD SCHEMATIC 3
1
USB Ports
Mini-B Upstream Port
A
PORT0
J2
1
VBUS
2
D- USBP0_N
3
D+ USBP0_P
4
ID
5
GND
R6 330R
C5
0.1uF
EARTH_P0
B
Port Power Switch
C6 0.1uF
C7 47uF
C9 47uF
5V
R8
13
BOOST BOOST
10k
R10
0R 20
2 PRTCTL1 ALERT1 ALERT1
1
PWR_EN1 PWR_EN1
C
VBUS1 4
VBUS1 VBUS1
5
VBUS1 VBUS1
3V3
R12 R13
4.7k 4.7k
2 SMB2_CLK
2 SMB2_DAT
I2C Communication to UCS2114 is optional and not required for normal operation
D
1
2 3
VBUS_UP 4
VBUS_UP Can optionally supply power to the entire PCB.
See the "Voltage Regulators" sheet for the jumper option
to select between "VBUS_UP" power or external "VBAT" supply.
R2
100k
VBUS_DET 2
2
2
R5
C4
200k
2.2uF
5V
C8 47uF
C10 47uF
U2
DNP 5V
R7
0R
3
COMM_ILIM COMM_ILIM M
R9
33k 1%
16
ALERT2 ALERT2
5V
R11
15 10k
PWR_EN2 PWR_EN2
12 VBUS2
VBUS2 VBUS2
11
VBUS2 VBUS2
Configuration: 3.2A Limit per port
SMBus Enabled (connected to USB Hub)
UCS2114-1-V/LX
2 3
4
USB-A Downstream Port 1
VBUS1
2 USBP1_N
2 USBP1_P
3V3
U1
74LVC1G14GW,125 3V3
5
D1 R4
VCC VCC C C
2 4
C2
GND GND D D 1k 0.1uF
3
PORT1 VBUS
Daisy Chain Port (USB4912 Only)
J3
VBUS2 1
VBUS VBUS
2
2 USB_SEC_N D- D-
3
2 USB_SEC_P D+ D+
4
GND GND
USB2.0 STD-A FEMALE
4
5
J1
1
VBUS VBUS
2 "PORT3"
D- D-
3
D+ D+
4
GND GND
USB-IF TID 60001133
R1 C1
1k 47uF USB2.0 STD-A FEMALE
DNP
R3
330R
C3 0.1uF
EARTH_P1
Microchip Technology, Inc.
USB/Network Group - UNG
www.Microchip.com
3V3
EVB-USB4x12- Evaluation Board
Description:
USB Ports
Page Title:
EARTH_P0 EARTH_P1
EVB-USB4x12
Project Name:
Size: B Date: 7/16/2018 Designer: Andrew Rogers
5
6
A
B
C
D
Designed with
Altium.com
UNG_8184
PN:
Sheet 3 of 4 Rev B0
6