参数资料
型号: WJLXT384LEB1
厂商: CORTINA SYSTEMS INC
元件分类: 数字传输电路
英文描述: DATACOM, PCM TRANSCEIVER, PQFP144
封装: 20 X 20MM, ROHS COMPLIANT, LQFP-144
文件页数: 79/140页
文件大小: 1514K
代理商: WJLXT384LEB1
43
Document Number: 248994
Revision Number: 005
Revision Date: November 28, 2005
Intel LXT384 Octal T1/E1/J1 S/H PCM Transceiver with JA
5.8
Power and Grounds
Table 15 lists and describes the LXT384 Transceiver power and grounds.
For low-noise operation, the LXT384 Transceiver is designed so that each transmitter has its own
power and its own ground. These pins are not necessarily internally connected. For example, for
channel 0 transmit, TGND0 is the corresponding ground pin and TVCC0 is the corresponding
power pin.
Table 15. Power and Grounds
Signal
Name
QFP
Pin
PBGA
Ball
Signal
Type
Signal Description
GND1
GND0
89
20
H11
H4
G
S
Ground (Core) 1:0.
GND0 and GND1 pins are ground for the digital core.
GNDIO1
GNDIO0
91
18
G11
G4
G
S
Ground (I/O) 1:0.
GNDIO0and GNDIO1 pins are grounds for the digital I/O
interface.
TGND7
TGND6
TGND5
TGND4
TGND3
TGND2
TGND1
TGND0
134
131
122
119
62
59
50
47
A6, B6
C6, D6
C9, D9
A9, B9
N9, P9
L9, M9
L6, M6
N6, P6
G
Transmit Driver Ground 7:0.
TGND[7:0] pins are grounds for the output drivers. Must
be tied to PC board ground at all times.
TVCC7
TVCC6
TVCC5
TVCC4
TVCC3
TVCC2
TVCC1
TVCC0
137
128
125
116
65
56
53
44
A4, B4
C4, D4
C11, D11
A11, B11
N11, P11
L11, M11
L4, M4
N4, P4
P
Transmit Driver Power Supply 7:0.
TVCC[7:0] pins are the power supply pins for the
corresponding output drivers.
All TVCC pins can be connected to either a 3.3-V or a 5-V
power supply. Never leave these pins disconnected.
For details, see Section Section 6.4.4, “Transmitter
VCC1
VCC0
90
19
H14
H1
P
S
Power (Core) 1:0.
VCCIO1
VCCIO0
92
17
G14
G1
P
S
Power (I/O) 1:0.
1. G: Ground. P: Power.
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