PBL38610-2 Datasheet, PDF (3/18 Pages) Ericsson – Subscriber Line Interface Circuit

PBL 386 10/2
Electrical Characteristics
0 °C ≤ T_Amb ≤ +70 °C, V_CC = +5V ±5 %, V_EE = -5V ± 5%, V_Bat = -58V to -40V, R_LC=18.7kΩ, (I_L = 27 mA), Z_L = 600 Ω, R_LD = 50 kΩ,
R_F1, R_F2 = 0 Ω, R_Ref = 15kΩ, C_HP = 68nF, C_LP=0.33 µF, R_T = 120 kΩ, R_SG = 24 kΩ, R_RX = 120 kΩ, AOV- and V_Bat2-pin not connected,
unless otherwise specified. Current definition: current is positive if flowing into a pin.
Parameter
Two-wire port
Overload level, V
TRO
Off-Hook, I_LDC ≥ 10 mA
On-Hook, I_LDC ≤ 5 mA
Input impedance, Z_TR
Longitudinal impedance, Z_LoT, Z_LoR
Longitudinal current limit, I_LoT, I_LoR
Longitudinal to metallic balance, B
LM
Ref
fig
Conditions
Min
2
Active state
1% THD, Note 1
2.5
1.4
Note 2
0 < f < 100 Hz
active state
12
IEEE standard 455-1985,ZTRX = 736 Ω
0.2 kHz < f < 1.0 kHz
53
1.0 kHz < f < 3.4 kHz
53
Typ
Max
Unit
Z_T/200
20
35
V_Peak
V_Peak
Ω/wire
mA_rms /wire
70
dB
70
dB
Longitudinal to metallic balance, B_LME
3
active state
B_LME = 20 • Log ^ELo
0.2 kHz ≤ f ≤ 1.0 kHz
53
70
dB
V
1.0 kHz < f < 3.4 kHz
53
70
dB
TR
Longitudinal to four-wire balance, B_LFE
3
active state
B_LFE = 20 • Log ^ELo
0.2 kHz ≤ f ≤ 1.0 kHz
59
70
dB
V_TX
1.0 kHz < f < 3.4 kHz
59
70
dB
Metallic to longitudinal balance, B
4
active state
MLE
V
0.2 kHz < f < 3.4 kHz
40
58
dB
TR
B_MLE = 20 • Log _VLo
Figure 2. Overload level, V_TRO, two-wire
port
1
ωC
<<
R_L,
R_L=
600
Ω
R
T
=
120
kΩ,
R
RX
=
120
kΩ
Figure 3. Longitudinal to metallic (B_LME)
and Longitudinal to four-wire (B_LFE)
balance
1
ωC
<< 150 Ω, R_LR = R_LT = R_L /2= 300Ω
R_T = 120 kΩ, R_RX = 120 kΩ
C
TIPX
VTX
R_L
V_TRO
I_LDC
PBL 386 10/2
R_T
E _RX
RINGX
RSN
R_RX
ELo _C
TIPX
VTX
R_LT
V_TR PBL 386 10/2
R_LR
RINGX
RSN
R_T
V _TX
R_RX
3