U3750BM
TELEFUNKEN Semiconductors
Parameters
Available current
Test Conditions / Pins
Close switch S4
Symbol
Min.
Typ.
Max.
Unit
mA
I = 28 mA
7.0
35
8
40
L
I = 60 mA
L
figure 3
Pin 14
Reception
Receiving gain
V = 0.3 V
L
RMS
G = V /V
I = 28 mA (G max)
G
R
10
2.5
–6
11
4
–7
12
5.5
–8
R
R
L
L
R
I = 60 mA (G min)
dB
L
R
AGC
I = 28 to 60 mA
L
G
R
figure 4
Psophometric receiving
noise
V = 0V, I = 28 mA
–65
dBmp
L
L
figure 4
Pin 29–30
Receiving distortion
I = 15 mA, V = 2.8 V
3
3
3
L
R
pp
pp
pp
I = 28 mA, V = 5.5 V
%
L
R
I = 60 mA, V = 5.0 V
L
R
figure 4
Receiver output impedance V = 50 mV
,
45
65
85
R
RMS
I = 28 mA
L
figure 4
Pin 29–30
I = 28 mA
figure 4
Pin 29–30
I = 28 mA
L
Receiver output offset
–650
+650
mV
dB
L
Sidestone (V /V )
36
40
R
M
figure 3
Z line matching impedance V = 0.3 V
580
660
750
L
RMS
I = 28 and 60 mA
L
figure 4
Ringer
Turn on voltage
Measured at pin VIR
figure 5
figure 5
VIR = 18 V
V
16
18.0
1.5
V
ON
Turn off voltage
Current consumption
without load
V
OFF
9.5
10.5
1.2
V
mA
Output voltage swing
Load = 10 k
figure 5
Pin 38 grounded
V
OUT
VIR–2
Vp
Hz
Output tone frequencies
1458
1166
547
Pin 38 open
438
Sweep frequencies
Leakage current
Pin 39 grounded
Pin 39 open
VIR = 30 V
4.0
9.1
Hz
A
5
II at VI = 0 V
L
L
Pins 38 and 39
figure 5
6 (20)
Rev. A1: 16.07.1996
TEMIC [ TEMIC SEMICONDUCTORS ]
