PBL 386 40/2
Electrical Characteristics
-40 °C ≤ TAmb ≤ +85 °C, PTG = open (see pin description), VCC = +5V ±5 %, VBat = -58V to -40V, VBat2 =-32V, RLC=32.4 kΩ,
IL = 27 mA. RL = 600 Ω, RF1=RF2=0, RRef = 49.9 kΩ, CHP = 47nF, CLP=0.15 µF, RT = 120 kΩ, RSG = 0 kΩ, RRX = 60 kΩ,
RR = 52.3 kΩ, ROV =∞ unless otherwise specified. Current definition: current is positive if flowing into a pin.
Ref
Parameter
fig
Conditions
Min
Typ
Max
Unit
Two-wire port
Overhead voltage, VTRO ,ILdc > 18mA
2
Active state
1% THD, ROV = ∞
Note 1
2.7
1.1
VPeak
VPeak
On-Hook, ILdc < 5mA
Input impedance, ZTR
Note 2
0 < f < 100 Hz
active state
IEEE standard 455-1985, ZTRX=736Ω
Normal polarity:
ZT/200
20
Longitudinal impedance, ZLOT, ZLOR
Longitudinal current limit, ILOT, ILOR
Longitudinal to metallic balance, BLM
35
Ω/wire
28
mArms /wire
0.2 kHz < f < 1.0 kHz, Tamb 0-70°C
1.0 kHz < f < 3.4 kHz, Tamb 0-70°C
0.2 kHz < f < 1.0 kHz, Tamb -40-85°C 60
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 55
Reverse polarity:
63
60
66
66
66
66
dB
dB
dB
dB
0.2 kHz < f < 1.0 kHz, Tamb 0-70°C
1.0 kHz < f < 3.4 kHz, Tamb 0-70°C
0.2 kHz < f < 1.0 kHz, Tamb -40-85°C 55
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 55
59
55
66
66
66
66
dB
dB
dB
dB
Longitudinal to metallic balance, BLME
Longitudinal to four wire balance BLFE
3
3
Normal polarity:
0.2 kHz < f < 1.0 kHz, Tamb 0-70°C
1.0 kHz < f < 3.4 kHz, Tamb 0-70°C
0.2 kHz ≤ f ≤ 1.0 kHz, Tamb -40-85°C 60
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 55
Reverse polarity:
0.2 kHz < f < 1.0 kHz, Tamb 0-70°C
1.0 kHz < f < 3.4 kHz, Tamb 0-70°C
63
60
66
66
66
66
dB
dB
dB
dB
ELo
BLME = 20 · Log
BLFE = 20 · Log
VTR
ELo
59
55
66
66
66
66
dB
dB
dB
dB
VTX
0.2 kHz < f < 1.0 kHz, Tamb -40-85°C 55
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 55
Metallic to longitudinal balance, BMLE
VTR
4
0.2 kHz < f < 3.4 kHz
40
50
dB
BMLE = 20 · Log
; ERX = 0
VLo
Figure 2. Overhead voltage, VTRO , two-
wire port
C
TIPX
VTX
1
RL
VTRO
ILDC
RT
PBL 386 40/2
<< RL, RL= 600 Ω
ωC
ERX
RINGX
RSN
RT = 120 kΩ, RRX = 60 kΩ
RRX
Figure 3. Longitudinal to metallic (BLME
)
VTX
TIPX
and Longitudinal to four-wire (BLFE
balance
)
ELo
RLT
C
RT
VTR
PBL 386 40/2
VTX
1
<< 150 Ω, RLR =RLT =RL /2=300Ω
ωC
RLR
RINGX
RSN
RRX
RT = 120 kΩ, RRX = 60 kΩ
3
ERICSSON [ ERICSSON ]
