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UTC1062A の電気的特性と機能

UTC1062AのメーカーはHangzhou Silan Microelectronicsです、この部品の機能は「Low Voltage Telephone Transmission Circuit」です。


製品の詳細 ( Datasheet PDF )

部品番号 UTC1062A
部品説明 Low Voltage Telephone Transmission Circuit
メーカ Hangzhou Silan Microelectronics
ロゴ Hangzhou Silan Microelectronics ロゴ 




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UTC1062A Datasheet, UTC1062A PDF,ピン配置, 機能
UTC1062A
LINEAR INTEGRATED CIRCUIT
LOW VOLTAGE TELEPHONE
TRANSMISSION CIRCUIT WITH
DIALLER INTERFACE
DESCRIPTION
The UTC1062A is a bipolar integrated circuit per- forming
all speech and line interface function required in the fully
electronic telephone sets. It performs electronic switching
between dialing speech. The circuit is able to operate down
to d.c. line voltage of 1.6v (with reduced performance) to
facilitate the use of more telephone sets in parallel.
FEATURES
* Low d.c. line voltage; operates down to 1.6V (excluding
polarity guard)
* Voltage regulator with adjustment static resistance
* Provides supply with limited current for external
circuitry
* Symmetrical high-impedance inputs (64kfor
dynamic, magnetic or piezoelectric microphones
* Asymmetrical high-impedance inputs (32kfor
electric microphones
* DTMF signal input with confidence tone
* Mute input for pulse or DTMF dialing
DIP-16
* Receiving amplifier for several types of earphones
* Large amplification setting range on microphone
and ear piece amplifiers
* Line loss compensation facility, line current
dependent (microphone and ear piece amplifiers)
* Gain control adaptable to exchange supply
* Possibility to adjust the d.c. line voltage
QUICK REFERENCE DATA
Line voltage at Iline=15mA
VLN
Line current operating range[pin1]
normal operation
with reduced performance
Iline
Iline
Internal supply current
Supply current for peripherals
w at Iline=15 mA mute input HIGH
Vcc>2.2V
w Vcc>2.8V
Voltage amplification range
w microphone amplifier
receiving amplifier
.D Line loss compensation
Amplification control range
a Exchange supply voltage range
t Exchange feeding bridge resistance range
aShYeOUeWtA4NUG .EcLoECmTRONICS CO.,LTDOperating ambient temperature range
ICC
Ip
Ip
AVD
AVD
AVD
Vexch
Rexch
Tamb
typ. 3.8 V
11 to 140 mA
1 to 11 mA
typ. 1mA
typ. 1.8mA
typ. 0.7mA
44 to 52 dB
20 to 39 dB
Typ.
6 dB
36 to 60V
400 to 1000
-25 to +75°C
1

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UTC1062A pdf, ピン配列
UTC1062A
LINEAR INTEGRATED CIRCUIT
RATING LIMITING VALUES (In accordance with the Absolute Maximum System)
parameter
conditions symbol min. max. unit
Positive continuous line voltage
VLN 12 V
Repetitive line voltage during
switch-on or line interruption
VLN 13.2 V
Repetitive peak line voltage for a 1 ms pulse/5s
R10=13
R9=20
(see Fig.15)
VLN
28 V
Line current (1)
R9=20
Iline
140 mA
Voltage on all other pins
Vi
VCC 0.7
V
Vi 0.7 V
Total power dissipation(2)
R9=20
Ptot
640 mW
Storage temperature range
Tstg 40
125 °C
Operating ambient temperature range
Tamb
25
75 °C
Junction temperature
Tj 125 °C
1. Mostly dependent on the maximum required Tamb and the voltage between LN and SLPE (see Figs 6).
2. Calculated for the maximum ambient temperature specified Tamb=75 °C and a maximum junction temperature of
125°C.
THERMAL RESISTANCE
From junction to ambient in free air
Rth j-a = 75K/W
ELECTRONICAL CHARACTERISTICS
(Iline=11 to 140mA;VEE=0V;f=800Hz;Tamb=25°C;unless otherwise specified)
parameter
conditions
symbol
Supply; LN and VCC(pins 1 and 13)
Voltage drop over circuit,
between LN and VEE
MIC inputs open
Iline=1mA
VLN
Iline=4mA
VLN
Iline=15mA
VLN
Iline=100mA
VLN
Iline=140mA
VLN
Variation with temperature
Iline=15mA
VLN/T
Voltage drop over circuit,
between LN and VEE with
Iline=15mA
external resistor RVA
RVA(LN to REG)
=68k
Iline=15mA
RVA(REG to SLPE)
=39k
Supply current
VCC=2.8V
ICC
Supply voltage available for
peripheral circuitry
Iline=15mA
MUTE=HIGH
Ip=1.2mA
VCC
lp=0mA
VCC
min.
3.55
4.9
2.2
typ. max. unit
1.6 V
1.9 V
4.0 4.25 V
5.7 6.5
V
7.5 V
0.3 mV/K
3.5 V
4.5 V
0.9 1.35 mA
2.7 V
3.4 V
YOUW ANG ELECTRONICS CO.,LTD
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3Pages


UTC1062A 電子部品, 半導体
UTC1062A
LINEAR INTEGRATED CIRCUIT
ELECTRONICAL CHARACTERISTICS (continued)
parameter
conditions
Highest line current
for maximum gain
Minimum line current
for minimum gain
symbol min. typ. max. unit
Iline 23 mA
Iline 61 mA
FUNCTIONAL DESCRIPTION
Supply: VCC,LN,SLPE,REG and STAB
Power for the UTC1062A and its peripheral circuits is usually obtained from the telephone line. The IC supply
voltage is derived from the line via a dropping resistor and regulated by the UTC1062A,The supply voltage Vcc
may also be used to supply external circuits e.g. dialing and control circuits. Decoupling of the supply voltage is
performed by a capacitor between Vcc and VEE while the internal voltage regulator is decoupled by a capacitor
between REG and VEE.
The DC current drawn by the device will vary in accordance with varying values of the exchange voltage(Vexch),
the feeding bridge resistance(Rexch) and the DC resistance of the telephone line(Rline).
The UTC1062A has an internal current stabilizer operating at a level determined by a 3.6kresistor connected
between STAB and VEE(see Fig.8). When the line current(Iline) is more than 0.5 mA greater than the sum of the IC
supply current ( Icc) and the current drawn by the peripheral circuitry connected to VCC(lp) the excess current is
shunted to VEE via LN.
The regulated voltage on the line terminal(VLN) can be calculated as:
VLN=Vref+ISLPE*R9 or;
VLN=Vref+[(IlineICC0.5*10-3A) Ip]*R9
where: Vref is an internally generated temperature compensated reference voltage of 3.7V and R9 is an external
resistor connected between SLPE and VEE. In normal use the value of R9 would be 20. Changing the value of R9
will also affect microphone gain, DTMF gain, in control characteristics, ide-tone level, maximum output swing on LN
and the dc characteristics(especially at the lower voltages).
Under normal conditions, when ISLPE ! ICC+0.5mA +Ip, the static behavior of the circuit is that of a 3.7V regulator
diode with an internal resistance equal to that of R9.In the audio frequency range the dynamic impedance is
largely determined by R1.Fig.3 shows the equivalent impedance of the circuit.
Microphone inputs(MIC+ and MIC-) and gain pins (GAS1 and GAS2)
The UTC1062A has symmetrical inputs. Its input impedance is 64k(2*32k) and its voltage gain is typically 52
dB (when R7=68k.see Fig.13). Dynamic, magnetic, piezoelectric or electret (with built-in FET source followers)
can be used. Microphone arrangements are illustrated in Fig.10. The gain of the microphone amplifier can be
adjusted between 44dB and 52dB to suit the sensitivity of the transducer in use. The gain is proportional to the
value of R7 which is connected between GAS1 and GAS2. Stability is ensured by the external capacitors, C6
connected between GAS1 and SLPE and C8 connected between GAS1 and VEE. The value of C6 is 100pF but
this may be increased to obtain a first-order low-pass filter. The value of C8 is 10 times the value of C6. The cut-off
frequency corresponds to the time constant R7*C6.
Mute input(MUTE)
A HIGH level at MUTE enables DTMF input and inhabits the microphone inputs and the receiving amplifier inputs;
a LOW level or an open circuit does the reverse. Switching the mute input will cause negligible click is at the
telephone outputs and on the line. In case the line current drops below 6mA(parallel operation of more sets) the
circuit is always in speech condition independent of the DC level applied to the
MUTE input.
YOUW ANG ELECTRONICS CO.,LTD
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部品番号部品説明メーカ
UTC1062

Low Voltage Telephone Transmission Circuit

Hangzhou Silan Microelectronics
Hangzhou Silan Microelectronics
UTC1062A

Low Voltage Telephone Transmission Circuit

Hangzhou Silan Microelectronics
Hangzhou Silan Microelectronics


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