U4030B TEMIC Semiconductors, U4030B Datasheet - Page 7

• Manufacturer Part Number: U4030B
• Description: Telephone Speech Circuit
• Manufacturer: TEMIC Semiconductors

Rev. A2, 27-Jan-98
Electrical Characteristics
f = 1000 Hz, T
DC characteristics (figure 9)
DC voltage in speech mode
Transmit amplifier and sidetone reduction (figure 10)
Input resistance
Transmit gain
Gain variation
Noise at line,
psophometrically weighted
Sidetone gain (figure 10)
Max. output voltage
Common mode rejection
ratio
Mute: reduction of
voltage amplification
Privacy: reduction of
voltage amplification
Receiving amplifier (figure 11)
Gain
Gain variation
Noise at earphone
psophometrically weighted
Max. output voltage
Switching threshold of ear
protection
Voltage amp. from
DTMF to RECO
Output impedance
Power down (figure 12)
PD-off input voltage
PD-on input voltage
Input current
Line voltage
Input current consumption
at V
D
Parameters
amb
= 25
_
C, reference point Pin 14, unless otherwise specified
I
I
I
I
19 mA
R
Z
Z
I
R
d
V
Z
Z
I
19 mA
I
Load T, R = 600
Z
Z
I
Z
d
I
Z
VGEN = 3 Vrms
Zear = 68 nF
V
PD on, I
PD on
L
L
L
L
L
L
L
L
L
RECO
MIC
RECO
RECO =
RECO
MIC
RECO
RECO
L
L
x
MIC
x
I
= 19 mA
= 26 mA
= 60 mA
= 24 mA
= 19 to 60 mA
= 24 mA
= 19 to 60 mA
= 19 to 60 mA
= 19 to 60 mA
= 6 V
Test Conditions / Pins
= 600
5%
2%
= 68 nF
= 68 nF
= 5.4 mV
R
= 68 nF
= 68 nF
= 68 nF
= 68 nF
= 68 nF
x
x
L
68 nF
W
= 24 mA
I
L
I
x
L
x
60 mA
W
60 mA
Symbol
CMRR
V
V
D
D
G
Omax
G
Omax
V
G
V
R
nO
V
V
I
n
G
G
I
D
ST
I
L
T
R
I
L
I
I
I
T
R
Min.
– 0.5
– 3.9
– 0.5
10.0
45.0
44.2
60.0
60.0
600
6.2
0.7
– 7
2
Typ.
10.5
60.0
44.7
33.5
80.0
– 3.4
650
6.5
7.2
5.5
1.5
– 4
U4030B
– 75.0
Max.
+0.5
– 2.9
11.0
80.0
45.2
– 78
130
100
6.8
6.3
0.5
1.3
0.3
– 1
10
mVrms
dBmp
dBmp
Vrms
dBm
Unit
k
m
m
dB
dB
dB
dB
dB
dB
dB
dB
dB
V
V
V
W
V
V
V
7 (14)
W
A
A