PBL 385 73
Electrical Characterisics
At T
Amb
= + 25° C. No cable and line rectifier unless otherwise specified.
Parameter
Line voltage, V
L
Transmitting gain, note 1
No gain regulation
Transmitting gain, note 1
With gain regulation
Ref.
fig.
2
2
2
2
Conditions
I
L
= 15 mA
I
L
= 100 mA
20 •
10
log (V
2
/ V
3
); 1 kHz
R
g
= 20kΩ
20 •
10
log (V
2
/ V
3
); 1 kHz
R
L
= 0, R
G
=
∞
R
L
= 400
Ω
R
L
= 900
Ω
- 2.2 kΩ
1 kHz, R
L
= 0 to 900
Ω
200 Hz to 3.4 kHz
Min
3.3
11
41
41
43.5
46
3
-1
Typ
3.7
13
43
43
45.5
48
5
Max
4.1
15
45
45
47.5
50
7
1
Unit
V
V
dB
dB
dB
dB
dB
dB
kΩ
kΩ
V
p
V
p
dB
Psoph
-14.5
-14.5
-12
-9.5
7
1
dB
dB
dB
dB
dB
dB
kΩ
Ω
V
p
V
p
Transmitting range of
regulation
Transmitting frequency
response
Microphone input impedance
Transmitter input impedance
pin 3
Transmitter dynamic output
Transmitter max output
Transmitter output noise
Receiving gain, note 1
No gain regulation
Receiving gain, note 1
With gain regulation
2
2
2
2
2
2
2
2
2
1 kHz
200 Hz - 3.4 kHz
≤
2% distortion, I
L
= 20 - 100 mA
200 Hz - 3.4 kHz
I
L
= 0 - 100 mA, V
3
= 0 - 1 V
Psoph-weighting, Rel 1 V
rms
, R
L
= 0
20 •
10
log (V
4
/ V
1
); 1 kHz
R
g
= 20kΩ
20 •
10
log (V
4
/ V
1
); 1 kHz
R
L
= 0, R
G
=
∞
R
L
= 400
Ω
R
L
= 900
Ω
- 2.2 kΩ
1 kHz, R
L
= 0 to 900
Ω
200 Hz to 3.4 kHz
1 kHz,
1 kHz,
200 Hz - 3.4 kHz
≤
2% distortion, I
L
= 20 - 100 mA
Measured with line rectifier
200 Hz - 3.4 kHz, I
L
= 0 - 100 mA,
V
1
= 0 - 50 V
A-weighting, Rel 1V
rms
, with cable
0 - 3 km, Ø = 0.4 mm
0 - 5 km, Ø = 0.5 mm,
1.7//(2.7) note 3
13.5
17
20.5
1.5
3
-75
-18.5
-18.5
-16
-13.5
3
-1
-16.5
-16.5
-14
-11.5
5
Receiving range of regulation
Receiving frequency response
Receiver input impedance
Receiver output impedance
Receiver dynamic output
note 2
Receiver max. output
2
2
2
2
2
3
38
3(+310)note 3
0.5
0.9
Receiver output noise
2
-85
dB
A
Mute input voltage
at mute (active low)
DC-supply voltage, note 4
Pin 7
DC-supply voltage, pin 7
leakage current (no supply)
2
2
I
L
= 20 - 100 mA
I
DC
= 0 mA
I
DC
= 2 mA
V
DC
= 2.35 V
0.3
V
2.1
1.95
4
2.35
2.2
0.1
2.6
2.6
V
V
µA
Notes
1. Adjustable to both higher and lower values with external components.
2. The dynamic output can be doubled, see applications information.
3. External resistor in the test set up.
4. The DC output voltage is reduced at low line voltage (see fig. 8).
3
ERICSSON [ ERICSSON ]
