U4091BM TEMIC Semiconductors, U4091BM Datasheet - Page 23

• Manufacturer Part Number: U4091BM
• Description: Programmable Telephone Audio Processor
• Manufacturer: TEMIC Semiconductors

Electrical Characteristics (continued)
Charge current
Pin SAO2
Discharge current
Pin SAO2
Microphone amplifier,
V
Gain MIC amp.:
MIC1/2
MIC3
Input suppression:
MIC3
MIC1/2
Settling time
offset-cancellers
Settling time offset-
cancellers in speed-up
mode
AGC for answering machine, AMPB
ENAM = ENAGC = I4O5 = I5O4 = 1
Nominal gain
Max. output level
Attack time
Release time
Switching matrix,
VL = 0, VB = 5 V, ENAM = I4O4 = 1, V
Input impedance
AMPB
Gain AMPB
AMREC
Max. input level
AMPB
Max. output level
AMREC
Offset
Mute switching matrix
Power-on reset
VL = 0, V
Power-on reset by
VMP threshold, VL or
VRING or ES high
Power-on reset by VB
threshold, VL or
VRING or ES high
Rev. A1, 02-Jun-98
B
= 5 V, V
Parameters
AMREC
MIC1/2
MP
AMREC
MIC3
MIC
= 3.3 V, V
= 2 mV, V
B
ENSAO = 0, SE = 1
LSCUR[0:1] = 3
ENSAO = 0, SE = 0
LSCUR[0:1] = 3
MICG[0:1] = 0
MICG[0:1] = 1
MICG[0:1] = 2
MICG[0:1] = 3
MICHF = 1, MICG[0:1] = 3
MICG[0:1] = 0, MICHF = 0
MICHF = 1
5
5
V
V
20 dB overdrive
I4O4: 1
I4O4 = 0
VB = 4 V, ES = 4 V,
rise VMP
VMP = 3 V, ES = 3 V,
rise VB
= 5 V, U4091 in power-down mode
MIC3
AMPB
AMPB
t
t
, FOFFC = 0
, FOFFC = 1
Test Conditions / Pins
= 2 mV, ENMIC = ENAM = I1O4 = 1, MICHF = 0
= 5 mV
= 50 mV, d< 5%
0
Target Specification
AMPB
AMREC,
= 1 V
rms
D
Symbol
VMP
V
VB
I
I
AMREC
CHA
DIS
on
on
–1.45
Min.
0.95
18.6
24.6
30.6
36.6
36.6
–0.4
2.65
240
60
60
24
50
60
Typ.
–1.2
2.75
300
1.2
3.1
19
25
31
37
37
26
45
60
2
0
U4091BM
600 mV
–0.95
Max.
VB–
1.45
19.4
25.4
31.4
37.4
37.4
2.85
300
360
600
0.4
60
28
70
30
mVp
Unit
V
mA
mA
mV
mV
dB
dB
dB
dB
dB
dB
dB
ms
ms
dB
ms
ms
k
dB
dB
V
V
PP
23 (29)
Fig.