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PDF ( 数据手册 , 数据表 ) TEA1097TV

零件编号 TEA1097TV
描述 Speech and loudspeaker amplifier IC with auxiliary inputs/outputs and analog multiplexer
制造商 NXP Semiconductors
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TEA1097TV 数据手册, 描述, 功能
INTEGRATED CIRCUITS
DATA SHEET
TEA1097
Speech and loudspeaker amplifier
IC with auxiliary inputs/outputs and
analog multiplexer
Product specification
Supersedes data of 1998 Jun 11
File under Integrated Circuits, IC03
1999 Apr 08







TEA1097TV pdf, 数据表
Philips Semiconductors
Speech and loudspeaker amplifier IC with
auxiliary inputs/outputs and analog multiplexer
Product specification
TEA1097
The preferred value for RSLPE is 20 . Changing this value
will affect more than the DC characteristics; it also
influences the transmit gains to the line, the gain control
characteristic, the sidetone level and the maximum output
swing on the line.
As can be seen from Fig.4, the internal circuitry is supplied
by pin VBB, which is a strong supply point combined with
the line interface. The line current is flowing through the
RSLPE resistor and is sunk by the VBB voltage stabilizer,
becoming available for a loudspeaker amplifier or any
peripheral IC. Its voltage is equal to 3.0 V for line currents
lower than 18 mA. It than increases linearly with the line
current and reaches the value of 5.3 V for line currents
greater than 45 mA. It is temperature compensated.
The aim of the current switch TR1 and TR2 is to reduce
distortion of large AC line signals. Current ISLPE is supplied
to VBB via TR1 when the voltage on SLPE is greater than
VBB + 0.25 V. When the voltage on SLPE is lower than this
value, the current ISLPE is shunted to GND via TR2.
The reference voltage Vref can be increased by connecting
an external resistor between pins REG and SLPE.
For large line currents, this increase can slightly affect
some dynamic performances such as maximum signal
level on the line for 2% THD. The voltage on pin VBB is not
affected by this external resistor. See Fig.5 for the main
DC voltages.
handbook, full pagewidLthN
REG
GND
SLPE
CREG
4.7 µF
TP1
R3
RSLPE
20
TR2
TR1
E1
D1
J1
R1
R2
from
preamp
TN1
J2
TN2
GND
Fig.4 Line interface principle.
GND
VBB
E2
D1
MGM298
1999 Apr 08
8







TEA1097TV equivalent, schematic
Philips Semiconductors
Speech and loudspeaker amplifier IC with
auxiliary inputs/outputs and analog multiplexer
Product specification
TEA1097
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134); DC levels are referenced to GND.
SYMBOL
VLN
VESI
Ii(ESI)
Vn(max)
Iline
Ptot
Tstg
Tamb
PARAMETER
positive continuous line voltage
repetitive line voltage during switch-on or line
interruption
positive continuous voltage on pin ESI
input current at pin ESI
maximum voltage
on pins REG, SLPE, IR and AGC
on all other pins except VDD
maximum line current for
TEA1097H
TEA1097TV
total power dissipation
TEA1097TV
TEA1097H
IC storage temperature
operating ambient temperature
CONDITIONS
Tamb = 75 °C
MIN.
0.4
0.4
0.4
0.4
0.4
40
25
MAX.
+12
+13.2
UNIT
V
V
+6 V
140 mA
VLN + 0.4 V
VBB + 0.4 V
140 mA
130 mA
400
720
+125
+75
mW
mW
°C
°C
THERMAL CHARACTERISTICS
SYMBOL
Rth(j-a)
PARAMETER
thermal resistance from junction to ambient
TEA1097TV
TEA1097H
CONDITIONS
in free air
VALUE
115
63
UNIT
K/W
K/W
1999 Apr 08
16










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