U4091BM TEMIC Semiconductors, U4091BM Datasheet - Page 20

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

Electrical Characteristics
f = 1 kHz, 0 dBm = 775 mV
Z
U4091BM
DC characteristics
DC voltage drop-over
circuit
Transmission amplifier, I
ERX = ETX = ENMIC = ENSTBAL = I1O1 = I3O3 = 1, (G
Transmit amplification
Frequency response
due to internal filters)
Gain change with
current
Gain deviation
CMRR of microphone
amplifier
Input resistance of
MIC amplifier
Input resistance of
MIC3 amplifier
Gain difference
between MIC1, MIC2
to MIC3
Distortion at line
Maximum output
voltage
Noise at line psopho-
metrically weighted
Anti-clipping:
Gain at low operating
current
Distortion at low
operating current
20 (29)
M
= 68 nF, resonator: f = 3.58 MHz, all bits in reset condition, unless otherwise specified.
Parameters
attack time
release time
I
I
I
I
MICG[0:1] = 2
AGATX[0:2] = 7
I
f = 1 kHz to 3.4 kHz
I
T
MICHF = 1
MICHF = 1
I
V
I
V
CTXA = 1 F
DBM5 = 0
DBM5 = 1
V
MICG[0:1] = 3
I
AGATX[0:2] = 7
CTXA = 1
each 3 dB overdrive
I
R
V
I
I
R
V
I
L
L
L
L
L
L
L
L
L
L
L
VMIC
L
VMIC
amb
DC
DC
rms
L
MIC
MIC
MIC
MIC
= 2 mA
= 14 mA
= 60 mA
= 100 mA
= 14 mA, V
= 14 to 100 mA
= 8 mA, I
= 8 mA, I
Test Conditions / Pins
= 700 mV
14 mA,
14 mA
19 mA, d < 5%
14 mA, MICG[0:1] = 2
, IVMIC = 0.3 mA, IMP = 3 mA, R
= 680 k
= 680 k
= –10 to +60 C
= 10 mV
= 20 m
= 0.5 mV
= 5 mV
= 300
= 300
m
F
MP
m
MP
m
rms
Target Specification
A
A
MIC
= 1 mA
= 1 mA
= 2 mV, MICG[0:1] = 2, AGATX[0:2] = 7
V
Symbol
CMRR
MICOmax
V
V
D
D
D
D
V
G
G
Lmax
Lmax
no
R
R
d
d
t
G
G
G
G
t
a
T
r
L
T
t
T
t
i
i
T
T
T
T
= 48 dB)
DC
= 1.3 M , T
Min.
45.8
45.5
4.6
8.8
1.3
3.8
–1
60
75
Typ.
–5.2
– 80
150
amb
2.4
5.0
7.5
9.4
2.5
5.0
0.5
47
80
50
16
= 25 C, Z
Max.
10.0
48.2
– 72
48.5
300
5.4
3.7
6.2
0.5
0.5
0.4
0
2
5
ear
Rev. A1, 02-Jun-98
= 68 nF + 100 ,
dBmp
dBm
dBm
dBm
Unit
dB
dB
dB
dB
dB
k
k
dB
ms
ms
dB
%
%
V
Fig.