pbl38571 ETC-unknow, pbl38571 Datasheet - Page 3

• Manufacturer Part Number: pbl38571
• Description: High Current Speech Line Interface Circuit
• Manufacturer: ETC-unknow

Electrical Characterisics
At T
Parameter
Line voltage, V
Transmitting gain, note 1
No gain regulation, low mode
Transmitting gain, note 1
With gain regulation
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
Receiving range of regulation
Receiving frequency response
Receiver input impedance
Receiver output impedance
Receiver dynamic output
note 2
Receiver max. output
Receiver output noise
Mute input voltage
at mute (active low) pin 7.
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.
Amb
= + 25 C. No cable and line rectifier unless otherwise specified.
L
2
Ref.
fig.
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
2
2
2
200 Hz - 3.4 kHz
Conditions
I
I
20 •
R
20 •
R
R
R
1 kHz, R
200 Hz to 3.4 kHz
1 kHz
Psoph-weighting, Rel 1 V
20 •
20 •
1 kHz, R
200 Hz to 3.4 kHz
1 kHz,
1 kHz,
200 Hz - 3.4 kHz
Measured with line rectifier
200 Hz - 3.4 kHz, I
V
A-weighting, Rel 1V
0 - 3 km, Ø = 0.4 mm
200 Hz - 3.4 kHz
I
R
R
R
R
0 - 5 km, Ø = 0.5 mm,
L
L
L
g
L
L
L
2% distortion, I
1
g
L
L
L
2% distortion, I
= 15 mA
= 100 mA
= 0 - 50 V
= 0 - 100 mA, V
= 0, R
= 400
= 900
™ = 20k
= 0, R
= 400
= 900
= 20k
10
10
10
10
log (V
log (V
log (V
log (V
L
L
G
G
= 0 to 900
= 0 to 900
=
=
- 2.2 k
2
2
- 2.2 k
4
4
/ V
/ V
/ V
/ V
3
3
L
1
1
); 1 kHz
); 1 kHz
L
); 1 kHz
); 1 kHz
= 20 - 100 mA
3
= 20 - 100 mA
= 0 - 1 V
L
rms
= 0 - 100 mA,
, with cable
rms
, R
L
= 0
Min
3.3
11
41
41
43.5
46
3
-1
13.5
-13.5
-18.5
-1
-16
3
-18.5
1.7//(2.7) note 3
-14
-11.5
-75
-16.5
Typ
43
43
45.5
48
17
38
3(+310)note 3
0.5
0.9
-85
1.5
3.7
13
5
3
5
-16.5
-14.5
-12
-9.5
45
45
47.5
50
7
1
20.5
0.3
Max
4.1
15
7
1
-14.5
PBL 385 71
dB
Unit
V
V
dB
dB
dB
dB
dB
dB
k
k
dB
dB
dB
dB
k
V
V
dB
V
V
V
dB
p
p
p
p
Psoph
dB
A
3