W6694CD WINBOND [Winbond], W6694CD Datasheet - Page 8

• Manufacturer Part Number: W6694CD
• Description: USB Bus ISDN S/T-Controller
• Manufacturer: WINBOND [Winbond]

5. SYSTEM DIAGRAM AND APPLICATIONS
Typical applications include:
RESET1
TR_RST
B_GND
BUS_P
USB1
USBCONN
SX1
SX2
SR1
SR2
D+
D-
VDD
2
1
§
§
1
2
3
4
1N4148
D1
R9
R13
R7
R10
18
18
1.8K
1.8K
1N4148
VDD
USB_P-
USB_P+
GND
GND
D12
+
USB passive TA for data only service
USB passive TA with one data plus one voice
R1
10K
RESETN
C3
1uF
1N4148
1N4148
1N4148
1N4148
D10
D16
D18
D20
JP2
1
2
3
4
HEADER 4
ATACH1
SW DPDT
VDD
1
4
VDD
D11
1N4148
D17
1N4148
D19
1N4148
D21
1N4148
+
D13
1N4148
CB1
1uF
VDD
R11
8.2K
8.2K
3
2
6
5
R14
D14
1N4148
0.1uF
CB2
SR1A
SR2A
3.3V
D15
1N4148
0.1uF
R5
1.5K
CB3
SX1A
SX2A
R4
VDD
22UF
22
R6
22
0.1uF
C6
VDD
CB4
3.3V
USBDN
USBDP
+
3.3V
0.1uF
CB5
SX1C
SR1C
SR1A
SX1A
Fig. 5.1 USB Passive TA Orcad Schematic
VDD
USBDP
USBDN
24MXI
24MXO
GND
SR1
SR2
VDD
SX1
1
2
3
4
5
6
8
9
U3
1
2
3
4
5
6
8
9
UT28615
37
38
39
40
41
42
43
44
45
46
47
48
U1
VDDU
D+
D-
VDD3
UCLK1
UCLK2
VDD3I
VSS1
SR1
SR2
VDD1
SX1
18
17
16
15
14
13
11
10
18
17
16
15
14
13
11
10
J1
JP1
SX2C
SR2C
SR2A
SX2A
- 8 -
TEST2#
TEST1#
VDD23
VDD22
VSS23
VSS22
EPDO
EPSK
EPCS
PRXD
EPDI
PTXD
W6694-QFP48
24
23
22
21
20
19
18
17
16
15
14
13
EPCS
EPSK
EPDO
EPDI
VDD
GND
VDD
VDD
EPDO
EPDI
EPSK
EPCS
VDD
VDD
GND
SX1C
SX2C
SR1C
SR2C
1
2
3
4
U2
CS
SK
DI
DO
NMC9346
DIP8
JUMPER
R8
100
JUMPER
R12
100
JP3
JP4
VCC
GND
1
1
1
1
NC
NC
FERRI BEAD
FERRI BEAD
FERRI BEAD
FERRI BEAD
Preliminary W6694
FB1
FB2
FB3
FB4
8
7
6
5
2
2
2
2
VDD
GND
1
2
3
4
5
6
7
8
ISDN CONNECTOR
ISDN1
24MXI
24MXO
768MXI
768MXO
Size
Date:
15.20X12.00
D2
LED
R15
560
R2
150
R3
220
Monday, May 29, 2000
D3
LED
R16
560
Document Number
W6694 WITH USB & ISDN INTERFACE
24MHz
7.68MHz
Y1
Y2
D4
LED
R17
560
W6694 DEMO BOARD-DATA ONLY
C2
10pF
C5
33pF
D:\..\W6694_DEMO\W6694_DEMO.DSN\W6694.SCH
1
1
1
1
C1
10pF
C4
33pF
D5
LED
R18
560
2
2
2
2
GND
GND
D6
LED
R19
560
Sheet
D7
LED
R20
560
1
D8
LED
R21
560
of
D9
LED
R22
560
1