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U4091B Datasheet, PDF (8/11 Pages) TEMIC Semiconductors – Programmable Telephone Audio Processor
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U4091B
TELEFUNKEN Semiconductors
Parameters
Test Conditions / Pin Symbol Min.
Supply voltages, Vmic = 25 mV, Tamb = – 10 to + 60°C
VMP
W IL = 14 mA,
RDC = 68 k
VMP
3.1
IMP = 2 mA
VMPS
IL = 100 mA
RDC = inf.,
VMPS
VM
IMP = 0 mA
w IL 14 mA,
m IM = 300 A
W RDC = 130 k
VM
1.4
VB
IB = + 20 mA,
VB
IL = 0 mA
Ringing power converter, IMP = 1 mA, IM = 0
Maximum output power
Threshold of ring frequency
detector
VRING = 20.6 V
RFDO: low to high
VHYST
= VRINGON – VRINGO
FF
PSA
VRINGON
VHYST
Input impedance
Input impedance in speech
mode
Logic-level of frequency
detector
PD Input
VRING = 30 V
RRING
4
f = 300 Hz to 3400 Hz RRINGSP 150
IL > 15 mA,
VRING = 20V + 1.5Vrms
VRING = 0 V,
VB = 4 V
VRING = 25 V
VRFDO
PD input current
Input voltage
Voltage drop at VL
PD active, IL > 14 mA
Ipd
VPD = VMP
PD = active
PD = inactive
Vpd
2
Vpd
IL = 14 mA,
VL
PD = active
IL = 100 mA,
VL
PD = active
Line detection
Line current for LIDET
active
PD = inactive
ILON
Line current for LIDET
inactive
PD = inactive
ILOFF
Current threshold during
power down
VB = 5 V, PD = active ILONPD 0.8
Typ.
3.3
7
20
17.5
11.0
5
0
VMP
9
1.5
1.9
12.6
11.0
1.6
Max.
3.5
6.7
3.3
7.6
6
0.3
2.4
Unit Figure
V
V
V
V
mW
V
kW
kW
V
uA
V
V
mA
mA
mA
8 (11)
Preliminary Information
Rev. A1: 12.07.1995
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