PBL 385 71
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, low mode
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
1.7//(2.7) note 3
13.5
17
1.5
3
-75
-18.5
-18.5
-16
-13.5
3
-1
-16.5
-16.5
-14
-11.5
5
-14.5
-14.5
-12
-9.5
7
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
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, low mode
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,
20.5
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) pin 7.
2
0.3
V
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.
3
ERICSSON [ ERICSSON ]
