U4091B TEMIC Semiconductors, U4091B Datasheet - Page 6

• Manufacturer Part Number: U4091B
• Description: Programmable Telephone Audio Processor
• Manufacturer: TEMIC Semiconductors

U4091B
6 (11)
Receiving amplifier, I
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
MUTE suppression
a) RECATT
b) RA2
c) DTMF operation
Output voltage d
differential
Maximum output current
d
Receiving noise
psophometrically weigthed
Output resistance
Line loss compensation
Gain at low operating current I
AC impedance
Distortion at low operating
current
v
2%
Parameters
v
2%
L
= 14 mA, RGR = 62 k, unless otherwise specified, V
I
single ended
differential
MUTR = GND
RGR = 62 k
differential
I
V
I
f = 300 to 3400 Hz
I
T
I
VGEN = 11 Vrms
I
MUTR = open
V
V
I
Z
Z
Z
I
each output against
GND
RAGA = 20 k
I
I
I
V
RDC = 68 k
V
V
I
I
V
RDC = 68 k
L
L
L
L
L
L
L
L
L
L
MP
M
L
MP
Test Conditions / Pin
amb
ear
ear
ear
MUTX
MUTR
MUTX
GEN
IMPSEL
IMPSEL
GEN
w
w
> 14 mA,
= 14 to 100 mA
w
w
= 14 mA
w
= 100 mA
= 10 mA
= 10 mA
= 300
Preliminary Information
= 1 mA
= 1 mA
= 68 nF + 100
= 100
= 68 nF + 100
= – 10 to + 60 C
14 mA,
14 mA
14 mA
14 mA
14 mA
= 560 mV
= 560 mV
= V
= V
= V
m
= GND
= V
W
A
W
MP
MP
MP
W
W
MP
W,
W
W
Symbol
D
D
G
D
D
D
Z
Z
G
G
G
EP
Ro
dR
G
G
ni
G
G
G
imp
imp
RM
R
R
R
RF
RI
R
R
R
– 1.75
0.775
Min.
– 7.0
570
840
– 7
– 2
60
7
4
TELEFUNKEN Semiconductors
GEN
Typ.
– 6.0
– 80
600
900
– 1
10
– 1
= 300 mV
– 0.25
"
"
"
Max.
– 5.0
+15
– 77
640
960
2.2
13
10
0
5
0.5
0.5
0.5
Rev. A1: 12.07.1995
(peak)
dBmp
Vrms
Vrms
Unit
mA
dB
dB
dB
dB
dB
dB
dB
dB
dB
W
W
W
%
Figure