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參數(shù)資料
| 型號： | PBL38773/1SO |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | TELECOM-SLIC, PDSO28 |
| 封裝： | PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 17/64頁 |
| 文件大?。?/td> | 1052K |
| 代理商： | PBL38773/1SO |
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Ringing FlexiSLIC
PBL 38773/1
Electrical Characteristics
Data Sheet
24
DS1, 2003-06-18
Figure 3
Overload Level,
V
TRO, Two-Wire Port
1/
ωC << R
L, RL = 600 , RT = 120 k, RRX = 120 k
Figure 4
Longitudinal to Metallic,
B
LME and Longitudinal to Four-Wire,
B
LFE Balance
1/
ωC << 150 , R
LT = RLR = 300 or 368 , RT = 120 k, RRX = 120 k
4) The overload level is automatically expanded as needed up to 1.25 VPeak (using the AOV function) when the
signal level > 0.5 VPeak and is specified at the four-wire transmit port, (VTX) with the signal source at the two-
wire port. Note that the gain from the two-wire port to the four-wire transmit port is G
2-4S = 0.5.
5) Secondary protection resistors
R
insertion loss is for
R
F1 = RF2 = 40 .
6) The specified insertion loss tolerance does not include errors caused by external components.
7) The level is specified at the four-wire receive port (
E
RX, Figure 7) and referenced to a 600 impedance level.
8) The two-wire idle noise is specified with the four-wire receive port grounded (
E
RX = 0, Figure 7). The four-wire
idle noise at
V
TX is the two-wire value reduced by 6 dB and is specified with the two-wire port terminated in
600
(R
L). The VTX noise specification is referenced to a 600 impedance level.
9) PBL 38773/1 contains an Automatic Gain Control Ringing (AGC-R) unit. This unit controls the Gain in the
ringing loop to keep an undistorted ringing signal due to variation in
V
BAT, VR input signal amplitude and Voltage
offset. For more information see Chapter 7 further on.
10)See Chapter 7.2 for information about this.
11)The
V
TBAT voltage is optimized for RL = 600 , IL = 26.8 mA, no metering signal, RF = 40 and the current
controlled battery switch. See Chapter 6.4 for further information.
PBL 38773
TIPX
RINGX
VTX
C
RSN
R
T
R
RX
R
L
V
TRO
Fig3_73
R
T
E
RX
I
Ldc
PBL 38773
TIPX
RINGX
VTX
RSN
R
T
R
RX
V
TR
Fig4_73
C
V
TX
R
LT
E
Lo
R
LR
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