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參數(shù)資料
| 型號： | PEF3065NV3.2 |
| 廠商： | SIEMENS AG |
| 元件分類： | Codec |
| 英文描述： | Signal Processing Subscriber Line Interface Codec Filter SLICOF |
| 中文描述： | 信號處理用戶線路接口編解碼器SLICOF |
| 文件頁數(shù)： | 50/102頁 |
| 文件大小： | 563K |
| 代理商： | PEF3065NV3.2 |
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PEB 3065
PEF 3065
Operating Modes
Semiconductor Group
50
01.98
6.5
In Active Mode (“Conversation State”) both AC-and DC-Loop are fully working. The
output voltage at the
V
2W
pin is controlled via the IT input pin in such way, that it behaves
like a constant current source which turns automatically into a programmable resistive
feeding source due to the DC-Characteristic values (see
chapter 3.2
,
page
13
for more
details).
The ternary HV-interface is set to one of the active modes.
Active Mode (Act)
Polarity
The SLICOFI supports either normal or reverse Polarity which is set by the POLNR-bit
(SOP-5). The information is transferred to the HV-Interface and simultaneously a
180 degree phase shift of the AC- and DC-Loop is done. The performance and the
functionality is not influenced by that.
Boosted Battery
To feed subscriber lines with enhanced loop resistance the SLICOFI supports the
Boosted Battery mode. The HV-Interface pins are set to Boosted Battery (BB) mode and
the maximum
V
2W
output voltage is extended to
3.2 V.
Meterpulses
The SLICOFI supports two different kinds of meterpulses: Meterpulses with 12/16 kHz
(Teletax Metering) and with polarity reversal. In the Active Mode the Timing bit (TIM)
controls the meterpulse which might be 12/16 kHz
or
reversal. The decision between
Table 12
Pin No./Pin Name
CIDD7
CIDD6
CIDD5
SCR1-7
SCR1-3
SCRI1-2
PIN 28
PIN 9
PIN 10
RING
CONV
TIM
PD
HI-b
HI-a
PDN
C1
C2
PDNH - Loop open
(Iab < 30
μ
A)
PDNR
PDown
PDown (with Hi-a)
PDown (with Hi-b)
b-line high
impedance
(Ground Start)
0
0
1
x
x
x
1
V
OL
V
OL
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
x
not (11)
1
0
0
0
0
V
OZ
V
OH
V
OL
V
OZ
V
OZ
V
OZ
V
OH
V
OH
V
OH
V
OH
0
0
1
1
0
1
0
1
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