UNISONIC TECHNOLOGIES CO., LTD
TEA1062N/TEA1062AN
LOW VOLTAGE TELEPHONE
TRANSMISSION CIRCUIT WITH
DIALLER INTERFACE
SOP-16
LINEAR INTEGRATED CIRCUIT
DESCRIPTION
The UTC
TEA1062N/TEA1062AN
is a bipolar integrated circuit
performing 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 (64kΩ)
for dynamic, magnetic or piezoelectric microphones.
* Asymmetrical high-impedance inputs (32kΩ)
for electrets microphones.
* DTMF signal input with confidence tone.
* Mute input for pulse or DTMF dialing.
* Receivering amplifier for several types of earphones.
* Large amplification setting range on microphone and earpiece
amplifiers.
* Line loss compensation facility, line current depedant
(microphone and earpiece amplifiers).
* Gain control adaptable to exchange supply.
* Possibility to adjust the d.c. line voltage
Lead-free:
TEN1062NL/TEN1062ANL
Halogen-free:
TEN1062NG/TEN1062ANG
DIP-16
ORDERING INFORMATION
Normal
TEA1062N-D16-T
TEA1062N-S16-R
TEA1062AN-D16-T
TEA1062AN-S16-R
Order Number
Lead Free
TEA1062NL-D16-T
TEA1062NL-S16-R
TEA1062ANL-D16-T
TEA1062ANL-S16-R
Halogen Free
TEA1062NG-D16-T
TEA1062NG-S16-R
TEA1062ANG-D16-T
TEA1062ANG-S16-R
Package
DIP-16
SOP-16
DIP-16
SOP-16
Packing
Tube
Tape Reel
Tube
Tape Reel
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QW-R108-011.C
TEA1062N/TEA1062AN
PIN CONFIGURATIONS
LINEAR INTEGRATED CIRCUIT
Fig. 1 Pin Configurations
PIN DESCRIPTIONS
PIN NO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN NAME
LN
GAS1
GAS2
QR
GAR
MIC-
MIC+
STAB
V
EE
IR
DTMF
MUTE/MUTE
Vcc
REG
AGC
SLPE
I/O
I
I
I
O
I
I
I
I
I
I
I
I
I
I
DESCRIPTION
Positive line terminal
Gain adjustment; transmitting amplifier
Gain adjustment; transmitting amplifier
Non-inverting output, receiving amplifier
Gain adjustment; receiving amplifier
Inverting microphone input
On-inverting microphone input
Current stabilizer
Negative line terminal
Receiving amplifier input
Dual-tone multi-frequency input
Mute input; TEA1062N high actived
TEA1062AN low actived
Positive supply decoupling
Voltage regulator decoupling
Automatic gain control input
Slope (DC resistance) adjustment
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QW-R108-011.C
TEA1062N/TEA1062AN
BLOCK DIAGRAM
V
CC
13
LINEAR INTEGRATED CIRCUIT
LN
1
5 GAR
IR 10
4 QR
MIC+ 7
MIC- 6
2
GAS1
3 GAS2
DTMF 11
dB
MUTE/MUTE 12
SUPPLY AND
REFERENCE
CONTROL
CURRENT
CURRENT
REFERENCE
9
V
EE
14
REG
15
AGC
8
STAB
LOW
VOLTAGE
CIRCUIT
16
SLPE
Fig. 2 Block Diagram
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QW-R108-011.C
TEA1062N/TEA1062AN
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATINGS
UNIT
Positive Continuous Line Voltage
V
LN
12
V
13.2
Repetitive Line Voltage During
V
LN(RL)
V
Switch-On Or Line Interruption
Repetitive Peak Line Voltage for a 1 ms Pulse/5s(R10=13Ω,
28
V
LN(RPL)
V
R9=20Ω(see Fig.15))
Line Current (Note1) (R9=20Ω)
I
LINE
140
mA
V
I
(+)
V
CC
+0.7
V
Voltage on All Other Pins
V
I
(-)
-0.7
V
Total Power Dissipation (Note2) (R9=20Ω)
P
D
640
mW
Junction Temperature
T
J
+125
°C
Operating Ambient Temperature Range
T
OPR
-25 ~ +75
°C
Storage Temperature Range
T
STG
-40 ~ +125
°C
Note: 1. Mostly dependent on the maximum required Ta and the voltage between LN and SLPE (see Figs 6 ).
2. Calculated for the maximum ambient temperature specified Ta=75°C and a maximum junction temperature
of 125°C.
3. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL DATA
PARAMETER
Thermal Resistance From Junction to Ambient in Free Air
SYMBOL
θ
JA
RATING
75
UNIT
°C/W
ELECTRICAL CHARACTERISTICS
(I
LINE
=11~140mA; V
EE
=0V; f=800Hz; Ta=25°C; unless otherwise
specified)
PARAMETER
SYMBOL
SUPPLY; LN AND VCC(PINS 1 AND 13)
Voltage Drop Over Circuit,
Between LN and V
EE
Variation with Temperature
Voltage Drop Over Circuit,
Between LN and V
EE
with
External Resistor R
VA
Supply Current
TEST CONDITIONS
I
LINE
=1mA
I
LINE
=4mA
I
LINE
=15mA
I
LINE
=100mA
I
LINE
=140mA
MIN
TYP
1.6
1.9
4.0
5.7
-0.3
3.5
4.5
2.2
2.2
0.9
2.7
3.4
2.7
3.4
64
32
50.5
82
52.0
±0.2
±0.2
53.5
1.35
MAX
UNIT
V
V
V
V
V
mV/K
V
V
mA
V
V
V
V
kΩ
kΩ
dB
dB
dB
dB
V
LN
MIC inputs open
3.55
4.9
4.25
6.5
7.5
ΔV
LN
/ΔT I
LINE
=15mA
I
LINE
=15mA, R
VA
(LN to REG) =68kΩ
I
LINE
=15mA,
R
VA
(REG to SLPE) =39kΩ
I
CC
V
CC
=2.8V
Ip=1.2mA; MUTE=HIGH
TEA1062N
I
LINE
=15mA
Supply Voltage
lp=0mA; MUTE=HIGH
Available for
V
CC
Ip=1.2mA; MUTE=LOW
Peripheral Circuitry TEA1062AN
I
LINE
=15mA
lp=0mA; MUTE=LOW
MICROPHONE INPUTS MIC+ AND MIC- (PINS 6 AND 7)
Input impedance (differential)
Between MIC- and MIC+
∣Zi∣
Input impedance (sigle-ended)
MIC- or MIC+ to V
EE
Common Mode Rejection Ratio
CMRR
Voltage Gain MIC+ or MIC- to LN
Gv
I
LINE
=15mA, R7=68kΩ
Gain Variation with Frequency
ΔGvf
w.r.t.800Hz
at f=300Hz and f=3400Hz
Gain Variation with Temperature
ΔGvT
w.r.t.25°C, without R6; I
LINE
=50mA
at -25°C and +75°C
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QW-R108-011.C
TEA1062N/TEA1062AN
ELECTRICAL CHARACTERISTICS(Cont.)
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
TEST CONDITIONS
DUAL-TONE MULTI-FREQUENCY INPUT DTMF (PIN 11)
∣Zi∣
Input Impedance
Voltage Gain From DTMF to LN
Gain Variation With Frequency
at f=300Hz and f=3400Hz
Gain Variation With Temperature
at -25°C and +75°C
Gv
ΔGvf
ΔGvT
I
LINE
=15mA, R7=68kΩ
w.r.t.800Hz
w.r.t.25°C, I
LINE
=50mA
MIN
TYP
20.7
MAX
UNIT
kΩ
24
25.5
±0.2
±0.2
27
dB
dB
dB
GAIN ADJUSTMENT GAS1 AND GAS2 (PINS 2 AND 3)
Gain Variation Of The Ransmitting
Amplifier By Varying R7 Between
ΔGv
GAS1 And GAS2
Sending Amplifier Output LN (pin 1)
I
LINE
=15mA, THD=10%
V
LN
(rms)
Output Voltage
I
LINE
=4mA, THD=10%
I
LINE
=15mA; R7=68kΩ; 200Ω
Noise Output Voltage
V
NO
(rms) between MIC- and MIC+;
psophometrically weighted
RECEIVING AMPLIFIER INPUT IR (PIN 10)
∣Zi∣
Input Impedance
RECEIVING AMPLIFIER OUTPUT QR (PIN 4)
∣Z
O
∣
Output Impedance
Voltage Gain From IR To QR
Gv
Gain Variation With Frequency
ΔGvf
at f=300Hz and f=3400Hz
Gain Variation With Temperature
ΔGvT
at-25°C and +75°C
THD=2%
Output Voltage
THD=10%
Noise Output Voltage
GAIN ADJUSTMENT GAR (PIN 5)
Gain Variation Of Receiving
Amplifier Achievable By
Varying R4 Between GAR And QR
MUTE INPUT (PIN 12)
Input Voltage(HIGH)
Input Voltage(LOW)
Input Current
REDUCTION OF GAIN
TEA1062N
MIC+ Or MIC- To LN
TEA1062AN
Voltage Gain From DTMF To QR
I
LINE
=15mA; RL(from pin 9 to pin
4 )=300Ω
w.r.t.800Hz
w.r.t.25°C without R6 I
LINE
=50mA
-8
1.7
2.3
0.8
-69
0
dB
V
V
dBmp
21
4
31
±0.2
±0.2
0.33
0.48
15
50
kΩ
Ω
dB
dB
dB
V
V
mV
μV
29.5
32.5
sinwave drive,
RL=150Ω
0.22
Ip=0mA, R4=100kΩ;
RL=450Ω
0.3
V
O
(rms) I
LINE
=15mA
R4=100kΩ
RL=150Ω
I
LINE
=4mA
I
LINE
=15mA, R4=100kΩ, IR open –
V
NO
(rms) circuit psophometrically weighted
RL=300Ω
ΔGv
-11
0
dB
V
IH
V
IL
I
MUTE
ΔGv
Gv
MUTE=HIGH
MUTE=LOW
R4=100kΩ, RL=300Ω
1.5
8
70
-19
V
CC
0.3
15
V
V
μA
dB
dB
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QW-R108-011.C
