U4091B TEMIC Semiconductors, U4091B Datasheet - Page 8

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

U4091B
8 (11)
Supply voltages, Vmic = 25 mV, T
V
V
V
V
Ringing power converter, IMP = 1 mA, IM = 0
Maximum output power
Threshold of ring frequency
detector
Input impedance
Input impedance in speech
mode
Logic-level of frequency
detector
PD Input
PD input current
Input voltage
Voltage drop at V
Line detection
Line current for LIDET
active
Line current for LIDET
inactive
Current threshold during
power down
MP
MPS
M
B
Parameters
L
I
RDC = 68 k
I
I
RDC = inf.,
I
I
I
RDC = 130 k
I
I
V
RFDO: low to high
V
= V
FF
V
f = 300 Hz to 3400 Hz
I
V
V
V
V
PD active, I
V
PD = active
PD = inactive
I
PD = active
I
PD = active
PD = inactive
PD = inactive
V
L
MP
L
MP
L
M
B
L
L
L
L
Test Conditions / Pin
RING
RING
HYST
RING
RING
B
RING
PD
B
= 14 mA,
= 100 mA
w
= 0 mA
> 15 mA,
= 14 mA,
= 100 mA,
= + 20 mA,
= 300
amb
RING
= 4 V
= 5 V, PD = active
Preliminary Information
= 2 mA
= 0 mA
= V
14 mA,
= 20V + 1.5V
= 20.6 V
= 30 V
= 0 V,
= 25 V
= – 10 to + 60 C
ON – V
MP
m
A
L
W
W
> 14 mA
RING
rms
O
V
ILONPD
R
VHYST
Symbol
V
ILOFF
R
V
RINGON
ILON
RINGSP
V
P
V
V
V
RFDO
Ipd
V
RING
V
V
MPS
MP
SA
pd
pd
M
B
L
L
Min.
150
3.1
1.4
0.8
4
2
TELEFUNKEN Semiconductors
VMP
Typ.
17.5
11.0
12.6
11.0
3.3
1.5
1.9
1.6
20
7
5
0
9
Max.
3.5
6.7
3.3
7.6
0.3
2.4
6
Rev. A1: 12.07.1995
Unit
mW
mA
mA
mA
k
k
uA
V
V
V
V
V
V
V
V
W
W
Figure