Preliminary
PBL 386 65/2
Electrical Characteristics
-40 °C ≤ TAmb ≤ +85 °C, VCC = +5V ±5 %, VEE = -5V ± 5%, VBat = -58V to -40V, RLC=18.7kΩ, IL = 27 mA, ZL = 600 Ω, RF1, RF2 =0 Ω,
Ref = 15kΩ, CHP = 68nF, CLP=0.33 µF, RT = 120 kΩ, RSG = 24 kΩ, RRX = 120 kΩ, AOV- and VBat2 pin not connected, unless
R
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 ,ILDC ≥ 10 mA
2
Active state
1% THD, Note 1
3.1
1.4
VPeak
VPeak
On-Hook, ILDC ≤ 5 mA
Input impedance, ZTR
Note 2
ZT/200
20
Longitudinal impedance, ZLoT, ZLoR
Longitudinal current limit, ILoT, ILoR
Longitudinal to metallic balance, BLM
0 < f < 100 Hz
active state
35
Ω/wire
28
mArms /wire
3
3
IEEE standard 455-1985, ZTRX=736Ω, active state
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 58
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 54
Reverse polarity:
63
58
dB
dB
dB
dB
0.2 kHz < f < 3.4 kHz, Tamb -40-85°C 54
dB
Longitudinal to metallic balance, BLME
Active state
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 58
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 54
Reverse polarity:
63
58
dB
dB
dB
dB
ELO
BLME = 20 • Log
VTR
0.2 kHz < f < 3.4 kHz, Tamb -40-85°C 54
dB
Longitudinal to four-wire balance, BLFE
ELO
3
4
Active state
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 64
1.0 kHz < f < 3.4 kHz, Tamb -40-85°C 60
Reverse polarity:
0.2 kHz < f < 3.4 kHz, Tamb -40-85°C 54
Active state
69
64
dB
dB
dB
dB
BLFE = 20 • Log
VTX
dB
dB
Metallic to longitudinal balance, BMLE
0.2 kHz < f < 3.4kHz
40
VTR
BMLE = 20 • Log
VLO
C
Figure 2. Overload level, VTRO, two-wire
port
TIPX
VTX
1
RL
VTRO
ILDC
RT
PBL 386 65/2
<< RL, RL= 600 Ω
ωC
ERX
RINGX
RSN
RT = 120 kΩ, RRX = 120 kΩ
RRX
Figure 3. Longitudinal to metallic (BLME
)
VTX
TIPX
and Longitudinal to four-wire (BLFE
)
ELo
RLT
C
balance
RT
VTR
PBL 386 65/2
VTX
1
ωC
<< 150 Ω, RLR = RLT = RL /2= 300Ω
RLR
RINGX
RSN
RT = 120 kΩ, RRX = 120 kΩ
RRX
3
ERICSSON [ ERICSSON ]
