PBL 386 20/2
Electrical Characteristics
0 °C ≤ TAmb ≤ +70 °C, PTG = open (see pin description), VCC = +5V ±5 %, VBat = -58V to -40V, VBAT2 = -17V, RLC=38.3 kΩ, IL = 22 mA.
RL = 600 Ω, RF1= RF2=RP1= RP2 =0 Ω, RRef = 49.9 kΩ, CHP = 47 nF, 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
Overload level, VTRO
2
Active state
1% THD, ROV = ∞
Note 1
1.0
1.0
VPeak
VPeak
On-Hook, ILdc < 5mA
Input impedance, ZTR
Note 2
0 < f < 100 Hz
active state
IEEE standard 455-1984
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
ZT/200
20
Longitudinal impedance, ZLOT, ZLOR
Longitudinal current limit, ILOT, ILOR
Longitudinal to metallic balance, BLM
35
Ω/wire
10
mArms /wire
53
53
dB
dB
Longitudinal to metallic balance, BLME
ELo
3
3
4
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
53
53
75
70
dB
dB
BLME = 20 · Log
VTR
Longitudinal to four-wire balance, BLFE
0.2 kHz < f < 1.0 kHz
1.0 kHz < f < 3.4 kHz
53
53
75
70
dB
dB
E
Lo
BLFE = 20 · Log
V
TX
Metallic to longitudinal balance, BMLE
VTR
0.2 kHz < f < 3.4 kHz
40
50
dB
BMLE = 20 · Log
; ERX = 0
VLo
C
TIPX
VTX
Figure 2. Overload level, VTRO , two-wire
port
RL
VTRO
ILDC
RT
PBL 386 20/2
ERX
1
<< RL, RL= 600 Ω
ωC
RINGX
RSN
RRX
RT = 120 kΩ, RRX = 60 kΩ
VTX
TIPX
Figure 3. Longitudinal to metallic (BLME
and Longitudinal to four-wire (BLFE) bal-
ance
)
ELo
RLT
C
RT
VTR
PBL 386 20/2
VTX
RLR
1
RINGX
RSN
<< 150 Ω, RLR =RLT =RL /2=300Ω
ωC
RRX
RT = 120 kΩ, RRX = 60 kΩ
3
ERICSSON [ ERICSSON ]
