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| U4089B Datasheet, PDF (10/25 Pages) ATMEL Corporation – MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT | |||
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Absolute Maximum Ratings
Parameters
Line current
DC line voltage
Junction temperature
Ambient temperature
Storage temperature
Total power dissipation, Tamb = 60°C, SSO44
Symbol
IL
VL
Tj
Tamb
Tstg
Ptot
Value
140
12
125
-25 to +75
-55 to +150
0.9
Thermal Resistance
Parameters
Junction ambient
SSO44
Symbol
RthJA
Value
70
Electrical Characteristics
f = 1 kHz, 0 dBm = 775 mVrms, IM = 0.3 mA, IMP = 2 mA, RDC = 130 kW, Tamb = 25°C, RGSA = 560 kW,
Zear = 68 nF + 100 W, ZM = 68 nF, Pin 20 open, VMUTX = GND, unless otherwise specified.
Parameters
Test Conditions
Pin
Symbol
Min.
DC Characteristics
DC voltage drop over circuit
IL = 2 mA
IL = 14 mA
IL = 60 mA
IL = 100 mA
VL
4.6
8.8
Transmission Amplifier, IL = 14 mA, VMIC = 2 mV, RGT = 27 kW, Unless Otherwise Specified
Adjustment range of transmit
gain
GT
40
Transmitting amplification
RGT = 12 kW
RGT = 27 kW
GT
47
39.8
Frequency response
IL ³ 14 mA,
f = 300 to 3400 Hz
DGT
Gain change with current
Gain deviation
CMRR of microphone
amplifier
Pin 20 open (AGA),
IL = 14 to 100 mA
Tamb = -10 to +60°C
DGT
DGT
CMRR
60
Input resistance of MIC
amplifier
RGT = 12 kW
RGT = 27 kW
Ri
45
Distortion at line
Maximum output voltage
IL > 14 mA
VL = 700 mVrms
IL > 19 mA, d < 5%
Vmic = 25 mV
CTXA = 1 µF
dt
VLmax
1.8
Noise at line psopho-
metrically weighted
IL > 14 mA
GT = 48 dB
no
Typ.
2.4
5.0
7.5
9.4
45
48
80
50
75
3
-80
Unit
mA
V
°C
°C
°C
W
Unit
K/W
Max.
Unit
V
5.4
V
V
10.0
V
50
dB
49
41.8
dB
±0.5
dB
±0.5
dB
±0.5
dB
dB
110
kW
2
%
4.2
dBm
-72
dBmp
10 U4089B-M
4570AâCORDâ04/03
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