W6694 Datasheet, PDF (8/33 Pages) Winbond – USB Bus ISDN S/T-Controller

Preliminary W6694
5. SYSTEM DIAGRAM AND APPLICATIONS
Typical applications include:
§ USB passive TA for data only service
§ USB passive TA with one data plus one voice
VDD
D1
R1
1N4148 10K
RESETN
2
RESET1
TR_RST
1
+ C3
1uF
VDD
+ CB1
1uF
CB2
0.1uF
CB3
0.1uF
CB4
0.1uF
CB5
0.1uF
J1
JP1
3.3V
C6
22UF
3.3V
+
VDD
USBDP
USBDN
24MXI
24MXO
GND
SR1
SR2
VDD
SX1
U1
37
38 ^VDDU
39
40
D+
D-
41
42
43
VDD3
UCLK1
UCLK2
44 ^VDD3I
45 ^VSS1
46
47
48
SR1
SR2
VDD1
SX1
USB1
BUS_P ¹
2
D-
3
D+
B_GND ⁴
VDD
USB_P-
USB_P+
GND
USBCONN
ATACH1
SW DPDT
3
1
2
6
4
5
JP2
1
2
3
4
HEADER 4
R4
3.3V
22
R5
1.5K
R6
22
USBDN
USBDP
24
VDD23
VSS23
23
22
TEST2#
TEST1#
EPDO
21
20
19
EPDI ₁₈
EPSK ₁₇
EPCS
PRXD
PTXD
16
15
14
VDD22
VSS22
13
VDD
GND
VDD
VDD
EPDO
EPDI
EPSK
EPCS
VDD
VDD
GND
W6694-QFP48
EPCS
EPSK
EPDO
EPDI
U2
1
2
3
4
CS
SK
DI
DO
8
VCC
NC
NC
7
6
5
GND
NMC9346
DIP8
VDD
GND
24MXI
24MXO
R2
150
768MXI
768MXO
R3
220
C1
10pF
1
2
Y1
24MHz
1
C2
10pF
2
GND
C4
33pF
1
2
Y2
7.68MHz
1
C5
33pF
2
GND
D2
LED
D3
LED
D4
LED
D5
LED
D6
LED
D7
LED
D8
LED
D9
LED
R15
560
R16
560
R17
560
R18
560
R19
560
R20
560
R21
560
R22
560
SX1
R7
18
D12
D10
1N4148
SX2
SR1
1N4148
R9
18
R10
1.8K
GND
D16
1N4148
D18
1N4148
SR2
R13
1.8K
D20
1N4148
SX1A
D11
1N4148
D13
D14
D15
VDD
VDD
1N4148
D17
1N4148
1N4148
1N4148
SX2A
R11
D19 8.2K
1N4148
VDD
VDD
SR1A
D21
1N4148
R14
8.2K
SR2A
SX1C
SR1C
SR1A
SX1A
U3
1
2
3
1
2
4
5
6
3
4
5
6
18
18
17
17
16
16
15
14
15
14
13
13
8
98
9
11
11 ₁₀
10
UT28615
SX2C
SR2C
SR2A
SX2A
SX1C
FB1
1
2
FERRI BEAD
JP3
JUMPER
SX2C
R8
100
FB2
FERRI BEAD
1
2
SR1C
FB3
1
2
FERRI BEAD
JP4
JUMPER
R12
100
SR2C
1
FB4
2
FERRI BEAD
Fig. 5.1 USB Passive TA Orcad Schematic
ISDN1
1
2
3
4
5
6
7
8
ISDN CONNECTOR
W6694 WITH USB & ISDN INTERFACE
W6694 DEMO BOARD-DATA ONLY
Size
Document Number
15.20X12.00
D:\..\W6694_DEMO\W6694_DEMO.DSN\W6694.SCH
Date:
Monday, May 29, 2000
Sheet
1
of 1
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