U4050B TEMIC Semiconductors, U4050B Datasheet - Page 5

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

www.DataSheet4U.com
Rev. A2, 05-Mar-98
Gain at low operating
current
Distortion at low
operating current
Line loss compensation
Mute suppression
Receiving amplifier
Adjustment range of
receiving gain
Receiving amplification
Amplification of DTMF
signal from DTMF IN
to RECO 1/2
Frequency response
Gain change with current
Gain deviation
Ear protection
differential
Output resistance
Line loss compensation
Output voltage
Push pull
Single ended
Receiving noise
psophometrically
weighted
Gain at low operating
current
Distortion at low
operating current
Parameters
I
RC = 68 k
V
I
I
V
I
R
I
V
I
differential
I
differential
I
Mute active
I
f = 300 to 3400 Hz
I
T
I
I
V
Each output
against GND
I
R
I
Z
Z
Z
Z
G
I
I
I
I
V
RC = 68 k
I
V
RC = 68 k
L
L
D
L
L
L
L
F
L
L
L
L
L
L
L
L
D
M
L
amb
H
H
H
H
AGA
AGA
mic
mic
mute
gen
R
gen
gen
w
w
= 15 mA
w
= 15 mA, d
= 10 mA, I
= 10 mA, I
= 100 mA
> 15 mA, C
= 15 to 100 mA
= 15 mA
w
= 100 mA
> 15 mA
= 10 mA
= 10 mA, I
= 1 mA, RC = 68 k
= 1 mA
Test Conditions / Pins
= 0 mA
= 68 nF
= 450
= 150
= 68 nF
= 0 dB
= 11 V
= 560 mV
= 560 mV
= 1 mV I
= 10 mV
= –10 to + 60 C
15 mA
15 mA
15 mA
= 1.5 V
= 7.5 k
= 7.5 k
15 mA
see figures 6 and 8
rms
D
M
D
L
M
v
= 1 mA
= 1 mA
= 0 mA
= 4.7 nF
= 0 mA
2%
Symbol
D
D
D
G
D
D
G
V
G
G
G
G
G
R
ds
G
dr
G
n
RM
G
G
SM
ep
R
R
R
S
o
i
RF
RI
SI
R
R
0.775
Min.
– 5.0
– 1.5
– 15
0.6
0.3
– 5
– 8
– 1
47
60
Typ.
– 0.5
– 6.0
– 12
– 83
– 6
U4050B
+ 0.5
"
"
"
– 78.5
Max.
– 7.0
2.2
– 7
+8
– 9
50
10
6
0
5
0.5
0.5
0.5
dBmp
V
V
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
%
%
5 (18)
rms
rms