Cypress EZ-USB HX2LP - Manual (Page 20)

CY7C656xx PRELIMINARY
Document #: 38-08037 Rev. *D Page 20 of 23
14.0 System Block Diagram
VCC
D–
D+
SHELL
BUSPOWER
GND
4.7 nF 250V
1 M Ω
D–
D+
100 k Ω
2.2 µ F
10V
HX2LP
GREEN[1]
AMBER[1]
GREEN[2]
AMBER[2]
GREEN[3]
AMBER[3]
GREEN[4]
AMBER[4]
PWR1
OVR1
PWR2
OVR2
PWR3
OVR3
PWR4
OVR4
SPI_CS
SPI_SCK
SPI_SD
DD–[1]
DD+[1]
DD–[2]
DD+[2]
DD–[3]
DD+[3]
DD–[4]
DD+[4]
D–
D+
BUSPOWER
D-
D+
DD-[1]
DD+[1]
DD-[2]
DD+[2]
DD-[3]
DD+[3]
DD-[4]
DD+[4]
GREEN[1]
AMBER[1]
GREEN[2]
AMBER[2]
GREEN[3]
AMBER[3]
GREEN[4]
AMBER[4]
PWR1
OVR1
PWR2
OVR2
PWR3
OVR3
PWR4
OVR4
SPI_CS
SPI_SCK
SPI_SD
VC
C
1
VC
C
2
VC
C
3
VC
C
4
VC
C
5
VC
C
6
VC
C
7
VC
C
8
VC
C
9
V
CC1
0
V
CC1
1
XI
N
XO
U
T
G
ND1
G
ND2
G
ND3
G
ND4
G
ND5
G
ND6
G
ND7
G
ND8
G
ND9
G
ND1
0
G
ND1
1
G
ND1
2
BUSPOWER
RESET
3V
24 MHz
12 pF
0.1 µ F
3.3V
100K
SPI
EEPROM
SPI_SD
SPI_SCK
SPI_CS
5V
PWR1
PWR3
PWR4
Power
Management
PWR1
OVR1
PWR2
OVR2
OVR3
PWR3
PWR4
OVR4
VCC
D–
D+
SHELL
GND
150 µ F
0.01 µ F 10V
DD–[1]
DD+[1]
PWR1
680 Ω
680 Ω
GREEN#[1]
AMBER#[1]
3.3V
680 Ω
680 Ω
GREEN#[2]
AMBER#[2]
3.3V
VCC
D–
D+
SHELL
GND
150 µ F
0.01 µ F
10V
DD–[2]
DD+[2]
PWR2
VCC
D–
D+
SHELL
GND
150 µ F
0.01 µ F 10V
DD-[3]
DD+[3]
PWR3
680 Ω
680 Ω
GREEN#[3]
AMBER#[3]
3.3 V
680 Ω
680 Ω
GREEN#[4]
AMBER#[4]
3.3 V
VCC
D–
D+
SHELL
GND
150 µ F
0.01 µ F
10V
DD-[4]
DD+[4]
PWR4
PWR2
12 pF
Figure 14-1. Sample Schematic
SPI_SD