 English |
|
|
|
|
|
|
|
| U4091BM-N Datasheet, PDF (31/38 Pages) ATMEL Corporation – PROGRAMMABLE TELEPHONE AUDIO PROCESSOR | |||
| |||
| ◁ |
U4091BM-N
Electrical Characteristics (Continued)
f = 1 kHz, 0 dBm = 775 mVrms, IVMIC = 0.3 mA, IMP = 3 mA, RDC = 1.3 Mâ¦, Tamb = 25°C, Zear = 68 nF + 100 â¦,
RLS = 50 â¦, ZM = 68 nF, resonator: f = 3.58 MHz, all bits in reset condition, unless otherwise specified.
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Distortion at low
operating current
IL = 6.5 mA, IMP = 1 mA
IM = 300 µA, EA[0:4] = 15, ENMIC =
dR
ETX = I101 = 0
5
%
Adjustment step: earpiece amplifier âEA[0:4] = 1
for EA[0:4] = 2 ... 31
0.8
1
1.2
dB
Adjustment step: AGARX
âAGARX[0:2] = 1
0.8
1
1.2
dB
Gain for DTMF signal
AMPB Ã RECO1/2
EA[0:4] = 1
-10
dB
AC impedance
IMPH = 0
IMPH = 1
Zimpl
Zimph
DTMF, IL = 14 mA, ETX = I201 = 1, AGATX[0:2] = 7, DTMFM[0:2] = 4, DTMFF[0:4] = 0
DTMF level at line (mid gain)
Sum level, 600 â¦,
DTMFM[0:2] = 4
595
625
655
â¦
980
1030 1080
â¦
-5.1
-3.6
-2.1
dBm
DTMF level at line (low gain)
Sum level, 600 â¦,
DTMFM[0:2] = 5
-7.6
-6.1
-4.6
dBm
DTMF level at line (high gain)
Sum level, 600 â¦,
DTMFM[0:2] = 6
AGATX[0:2] = 1
-5.2
-3.7
-2.2
dBm
Pre-emphasis
600 â¦, DTMFF4 = 0
DTMFF4 = 1
2
2.5
3
dBm
3
3.5
4
dBm
Speaker Amplifier, Differential Mode
AMPB âSAO1/2
ENSACL = ENSA = ENSAO = ENAM = I4O2 = 1, SA[0:4] = 31,
ERX = ETX = ENMIC = ENSTBAL = I1O1 = I3O3 = 1
Minimum line current for operation
Gain from AMPB to SAO
ENAM = I4O2 = 0
SE = 0, I3O2 = 1
IMP 1 mA, VGEN = 300 mV
VAMPB = 3 mV, IL = 15 mA,
SA[0:4] = 31
SA[0:4] = 0
ILmin
11
mA
GSA
36
37
-5.5
38
dB
Adjustment step speaker amplifier âSA[0:4] = -1
1.15
1.35
1.55
dB
Output power single ended
Maximum output power differential
Output noise
(input AMPB open)
phosphometrically weighted
Load resistance:
RLS = 50 â¦, d < 5%
VAMPB = 40 mV, SE = 1
IL = 15 mA
IL = 20 mA
Load resistance:
RL = 50 â¦, d < 5%
VAMPB = 60 mV, SE = 0
VB = 5 V
IL > 15 mA
PSA
PSA
3
7
20
mW
mW
PSA
150
mW
nSA
240
mVpsoph
Gain deviation
IL = 15 mA
Tamb = -10 to +60° C
âGSA
±1
dB
Note: 1. This is a space of time where the bus must be from data transmission and before a new transmission can be started
31
4666BâCORDâ08/04
|
▷ |
German
Russian
Spanish
Italian
Polish
Chinese
Japanese
Korean
French
Portuguese