pbl388131sot ETC-unknow, pbl388131sot Datasheet - Page 4

• Manufacturer Part Number: pbl388131sot
• Description: Voice-switched Speakerphone Circuit With Built Loudspeaker Amplifier
• Manufacturer: ETC-unknow

PBL 388 13
Parameter
N
N
CMP (comparator) sensitivity,
transmit (Tx) mode to receive
(Rx) mode or vice versa
CTR voltage for 25 dB dynamics, V
CTR voltage for mute, V
CTR voltage for disable, V
Loudspeaker amplifier
Operating voltage, V
Current consumption (no signal), I
Current consumption
(output swing at 5% dist.)
Swing at 5% dist., V
Gain
Frequency response
Amplifier power efficiency (5% dist), n
Input impedance pin 23
Notes
1.
2.
3.
4
Det
Det
leakage current (hold), I
swing relative to V
20 •
V
V
V
V
Depends on V
V
NDet
Ref
TxDet
TxDetO
Line
10
=V
log (
=
= voltage at noise detector output
= reference voltage (about 2 V) see figure 2.
= Voltage at transmit detector output.
A
+V
voltage at transmit detector output at the point
when the voltage at the noise detector starts
moving when a signal at transmit channel input is
gradually increased (threshold, typical value 30 mV)
RDC
V
V
TxDet
+
. Channels are tracking.
Out
NDet
A
- V
Ref
- V
CTR
, V
TxDetO
CTR
Ref
NDet
NDet
)
+L
CTR
3,15
3,15
3,15
17
17
13
Ref.
fig.
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
Conditions
V
V
V
V
Tx mode = max Tx gain,
Rx mode = max Rx gain
V
V
V
R
V
R
V
V
V
V
V
V
V
V
200 to 3400 Hz, relative 1kHz,
V
n = 100 • P
R
TxDetIn
CMP
TxDetIn
CMP
A
A
A
RDC
RDC
A
A
A
A
A
A
A
A
E
E
CTR
= 3.0 V
= 5.0 V
= 12.0 V
= 3.0 V
= 5.0 V
= 12.0 V
= 3.0 V
= 5.0 V
=12.0 V
=5.0 V, I
= 3.0 to 12.0 V,
= 1.5 k, V
= 1.5 k, V
= V
=100k
= V
= 0.35 V
= 5.0
= V
= V
Ref
Ref
Ref
- 0.1 V
Ref
+ 0.1 V,
Load
VOL
- 0.1 V,
Line
Line
+ 0.1 V,
/P
= 0
Supply
= 3.0 V (Note 3)
= 12.0 V (Note 3)
Figure 5. Power amplifier distortion
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
V
out
2
4
f = 1 kHz
6
1.1
Min.
2.5
0.6
1.5
3.6
34.5
-1
24
8
10
12
Typ.
-100
0.45
40
V
1
2
4
1.3
7.5
7
13
30
0.85
1.7
4.0
36.5
40
30
+
5%
2%
14
16
Max.
80
1.6
0.9
12
2.3
9
2.4
14
38.5
36
1
18
V
Unit.
nA
V
mV
V
V
V
V
mA
mA
mA
mA
mA
mA
mA
mA
V
V
V
dB
dB
%
k
Line
p
p
p