U4092B Datasheet, PDF (17/32 Pages) TEMIC Semiconductors – Monolithic Integrated Feature Phone Circuit

TELEFUNKEN Semiconductors
U4092B
Parameters
Test conditions / Pin Symbol Min. Typ. Max. Unit Figure
Input resistance
Distortion of DTMF signal
Gain deviation with current
RGT = 27 kW,
w ^{RGT = 15 kW}
I_L 15 mA
V_L = 0 dBm
I_L = 15 to 100 mA
R_i
60
180 300
kW
25
26
70
130
d_D
2
%
25
DGD
"0.5 dB
25
w ^{AFS acousting feedback suppression}
Adjustment range of
I_L 15 mA
attenuation
Attenuation of transmit gain
Attenuation of speaker
amplifier
AFS disable
w _{IIIRLIINNATLLADDFTR}1_S5===m0130A_m0,AmkAW
w _{IIIRLIINNATLLADDFPR}1_S5===m0130A_m0mkW
w I_L 15 mA
0
50
dB
27
DG_T
45
dB
27
DG_SA
50
dB
27
V_ATAFS
1.5
V
27
Supply voltages, Vmic = 25 mV, T_amb = – 10 to + 60°C
V_MP
I_L = 14
RDC =
mA,
68 kW
V_MP
3.1
3.3
3.5
V
22
I_MP = 2 mA
V_MPS
I_L = 100 mA
RDC = inf.,
V_MPS
6.7
V
22
V_M
w ^{IMP = 0 mA}
I_L
I_M =
RDC
14 mA,
300 mA
= 130 kW
V_M
1.4
3.3
V
22
V_B
I_B = + 20 mA,
V_B
I_L = 0 mA
Ringing power converter, IMP = 1 mA, IM = 0
7
7.6
V
22
Maximum output power
V_RING = 20.6 V
P_SA
20
mW
26
Threshold of ring frequency RFDO: low to high V_RINGON
17.5
detector
V_HYST
= V_RINGON – V_RING VHYST
11.0
26
V
OFF
Input impedance
V_RING = 30 V
R_RING
4
5
Input impedance in speech f = 300 Hz to 3400 Hz R_RINGSP 150
mode
I_L > 15 mA,
6
kW
26
kW
26
V_RING = 20V + 1.5V_rms
Logic-level of frequency
detector
V_RING = 0 V,
V_B = 4 V
V_RING = 25 V
V_RFDO
0
VMP
V
26
Ring detector enable
V_RING = 25 V,
VMPON 2.7
2.9
3.1
V
26
RFDO high
Ring detector disable
V_RING = 25 V,
RFDO low
VMPOFF 2.2 2.35 2.5
V
26
Rev. A1: 24.01.1995
Preliminary Information
17