U4050B TEMIC Semiconductors, U4050B Datasheet - Page 6

• Manufacturer Part Number: U4050B
• Description: Speech Circuit
• Manufacturer: TEMIC Semiconductors

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U4050B
Speaker amplifier
Minimum line
current for operation
Gain from V
Output power
Output noise
Gain devitation
Gain change with current
Resistor for turning off
speaker amplifier
Maximum off-state
Output voltage
Gain change
with frequency
Attack time
Release time
Distortion
DTMF - amplifier
Test conditions: I
Adjustment range of DTMF
gain
DTMF amplification
Gain deviation
Input resistance
Distortion of
DTMF signal
Gain deviation
with current
6 (18)
Parameters
L
to SAO
D
= 2 mA, I
M
No ac signal
I
V
Load resistance
R
d < 5 %
V
I
I
I
(Input G
I
T
I
R
I
I
V
Pin G
I
f = 300 to 3400 Hz
20 dB overdrive
I
V
I
Load = 600
I
I
T
I
V
I
R
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
= 0.3 mA, R
amb
amb
L
AGA
AGA
gen
gen
L
gen
I
w
> 15 mA
= 20 mA
> 15 mA
= 15 mA
= 15 to 100 mA
= 15 to 100 mA
= 15 mA
= 15 mA
= 15 mA
= 15 mA
= 15 mA
= 15 mA
w
= 15 to 100 mA
= 0 dBm
Test Conditions / Pins
= 50
= 0 dBm
= 10 mV
= 300 mV
= 300 mV
= –10 to + 60 C
= – 10 to 60 C
15 mA
SA
15 mA
= 7.5 k
= 7.5 k
SA
open
open)
see figure 7
see figure 8
AGA
rms
= 7.5 k , mute active
Symbol
D
D
D
R
V
I
d
D
G
PSA
PSA
Lmin
nsa
G
G
G
G
G
G
SAO
GSA
SAO
R
G
t
t
d
SA
r
f
D
D
D
SA
SA
SA
i
D
Min.
10.5
27.5
24.5
0.8
18
20
5
Typ.
300
1.3
29
20
26
26
25
1
"
"
"
Rev. A2, 05-Mar-98
Max.
30.5
"
– 50
"
200
15
34
27
30
2
5
2
1.5
0.5
0.5
1
1
dBm
Unit
mW
M
mA
k
dB
dB
dB
dB
ms
ms
dB
dB
dB
dB
%
%
V
W