L3000SX-77 Просмотр технического описания (PDF) - STMicroelectronics
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L3000SX-77 Datasheet PDF : 29 Pages
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L3000S - L3030
PIN DESCRIPTION (L3030)
Pin
Symbol
Function
1
TST
This pin is connected internally for test purpose. It should not be used as a tie point for
external components.
2
REF
Bias Set
3
AGND Analog Ground
4
VSS
– 5V
5
VDD
+ 5V
6
N.C.
Not connected.
7
CZS
AC Feedback Input
8
ACF
AC Line Impedance Synthesis
9
ZAC
AC Impedance Adjustement
10
11
12
TST
These pins are connected internally for test purpose. It should not be used as a tie point
for external components.
13
VOUT Two wire unbalanced output.
14
CM
Capacitor Multiplier Input
15
RC
DC Feedback Input
16
IT
Transversal Line Current
17
RDC DC Feeding System
18
EIA
Read/write Command
19
NCS Chip Select Command
20
DIO
Data Input/output
21
DCKL Clock Signal
22
DGND Digital Ground
23
N.C.
Not connected.
24
N.C.
Not connected.
25
N.C.
Not connected.
26
CI
Input/output Changing Command
27
C1
State Control Signal 1
28
C2
State Control Signal 2
29
N.C.
Not connected.
30
N.C.
Not connected.
31
IL
Longitudinal Line Current
32
CRTS Ringtrip Det. & TTX Shaping
33
TTXIN Teletaxe Signal Input
34
RGTTX TTX Filter Level Compensation
35
TTXF TTX Filter Input
36
ZB
Balancing Network
37
38
39
TST
These pins are connected internally for test purpose. It should not be used as a tie point
for external components.
40
TX
4W Sending Output
41
RX/RG 4W Receiving and Ring Input
42
VBIM Battery Image Input
43
44
TST
These pins are connected internally for test purpose. It should not be used as a tie point
for external components.
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