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參數(shù)資料
| 型號(hào)： | T7688 |
| 廠商： | Lineage Power |
| 英文描述： | 5.0 V E1/CEPT Quad Line Interface(5.0 V E1/CEPT四線接口) |
| 中文描述： | 5.0V的E1/CEPT四線接口（5.0V的E1/CEPT四線接口） |
| 文件頁數(shù)： | 5/38頁 |
| 文件大?。?/td> | 577K |
| 代理商： | T7688 |
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Data Sheet
May 1998
T7688 5.0 V E1/CEPT Quad Line Interface
5
Lucent Technologies Inc.
Pin Information
(continued)
Table 1. Pin Descriptions
Pin
Symbol
Type
*
Name/Description
1, 51
GND
S
P
Ground Reference for Substrate
.
2, 6
GNDX1
P
Ground Reference for Line Drivers.
46, 50
GNDX2
52, 56
GNDX3
96, 100
GNDX4
3
TTIP1
O
Transmit Bipolar Tip
. Positive bipolar transmit output data to the analog
line interface.
49
TTIP2
53
TTIP3
99
TTIP4
4
V
DD
X1
P
Power Supply for Line Drivers.
The T7688 device requires a 5 V
±
5%
power supply on these pins.
48
V
DD
X2
54
V
DD
X3
98
V
DD
X4
5
TRING1
O
Transmit Bipolar Ring
. Negative bipolar transmit output data to the analog
line interface.
47
TRING2
55
TRING3
97
TRING4
7
V
DDA
1
P
Power Supply for Analog Circuitry
. The T7688 device requires a 5 V
±
5%
power supply on these pins.
45
V
DDA
2
57
V
DDA
3
95
V
DDA
4
8
RTIP1
I
Receive Bipolar Tip
. Positive bipolar receive input data from the analog line
interface.
44
RTIP2
58
RTIP3
94
RTIP4
9
RRING1
I
Receive Bipolar Ring
. Negative bipolar receive input data from the analog
line interface.
43
RRING2
59
RRING3
93
RRING4
10
GND
A
1
P
Ground Reference for Analog Circuitry
.
42
GND
A
2
60
GND
A
3
92
GND
A
4
* P = power, I = input, O = output, and I
u
= input with internal pull-up.
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