PBL 3762A/2, /4
Electrical Characteristics
-40 °C ≤ TAmb ≤ 85 °C, Note 10, VCC = +5V ±5 %, VEE = -5V ±5%, VBat = -48V, AGND = BGND, RSG = 20kΩ (for PBL 3762A/4 RSG
=
0Ω), RDC1 = RDC2 = 20 kΩ. ZL = 600 Ω, CHP = 10 nF, CDC = 3.3 µF unless otherwise specified. All pin number references in the text
and figures refer to the 22-pin DIP unless otherwise specified.
Ref
fig
Parameter
Conditions
Min
Typ
Max
Unit
Two-wire port
Overload level, VTRO
Input impedance, ZTR
2
ZL = 600 Ω, 1% THD, Note 1
Note 2
3.1
VPeak
Longitudinal impedance, ZLoT, ZLoR
Longitudinal current limit, ILoT, ILoR
0 < f < 100 Hz
active state
stand-by state
10
27
8,5
35
Ω/wire
mArms /wire
mArms/ wire
Longitudinal to metallic balance, BLM
Longitudinal to metallic balance, BLME
IEEE standard 455-1985
0.2 kHz ≤ f ≤ 3.4 kHz
0°C ≤ TAmb ≤ 70°C
-40°C ≤ TAmb ≤ 85°C
63
55
70
70
dB
dB
3
3
0.2 kHz ≤ f ≤ 3.4 kHz
ELo
BLFE = 20 • Log
VTR
0°C ≤ TAmb ≤ 70°C
-40°C ≤ TAmb ≤ 85°C
63
55
70
70
dB
dB
Longitudinal to four-wire balance, BLFE
0.2 kHz ≤ f ≤ 3.4 kHz
ELo
BLFE = 20 • Log
V
0°C ≤ TAmb ≤ 70°C TX
-40°C ≤ TAmb ≤ 85°C
63
55
70
70
dB
dB
Metallic to longitudinal balance, BMLE
Four-wire to longitudinal balance, BFLE
4
4
0.2 kHz ≤ f ≤ 3.4 kHz
50
55
dB
ETR
BMLE = 20 • Log
,ERX = 0
VLo
0.2 kHz ≤ f ≤ 4.0 kHz
50
55
dB
ERX
BFLE = 20 • Log
VLo
ETR source removed
C
TIPX
5
VTX
21
Figure 2. Overload level, VTRO, two-wire
port.
R
V
TRO
R
T
I
L
PBL 3762A/2
Ldc
1
E
RX
<< RL, RL= 600 Ω
ωC
RINGX
6
RSN
19
R
RX
RT = 600 kΩ, RRX = 300 kΩ
Figure 3. Longitudinal to metallic (BLME
)
TIPX
5
VTX
21
and Longitudinal to four-wire (BLFE
balance.
)
R
LT
C
R
E
TR
T
PBL 3762A/2
E
1
RX
V
<< 150 Ω, RLR = RLT = 300 Ω
ωC
L
O
R
LR
RINGX
6
RSN
19
R
RX
RT = 600 kΩ, RRX = 300 kΩ
3
ERICSSON [ ERICSSON ]
