Philips Semiconductors
Product specification
Low voltage versatile telephone
transmission circuit with dialler interface
CHARACTERISTICS
I
line
= 11 to 140 mA; V
EE
= 0 V; f = 800 Hz; T
amb
= 25
°C;
unless otherwise specified
PARAMETER
Supply; LN and V
CC
Voltage drop over circuit,
between LN and V
EE
microphone inputs open
I
line
= 1 mA
I
line
= 4 mA
I
line
= 7 mA
I
line
= 11 mA
I
line
= 15 mA
I
line
= 100 mA
I
line
= 140 mA
Variation with temperature
Voltage drop over circuit,
between LN and V
EE
with
external resistor R
VA
I
line
= 15 mA;
R
VA
(LN to REG)
= 68 kΩ
I
line
= 15 mA;
R
VA
(REG to SLPE)
= 39 kΩ
Supply current
Supply current
Supply voltage available for
peripheral circuitry
I
line
= 15 mA;
MUTE = HIGH
I
p
= 1.4 mA
I
p
= 0 mA
Microphone inputs
MIC+ and MIC−
Input impedance (differential)
between MIC− and MIC+
Input impedance (single-ended)
MIC− or MIC+ to V
EE
Common mode rejection ratio
Voltage gain
MIC+/MIC− to LN
I
line
= 15 mA;
R7 = 68 kΩ
G
v
51
52
53
Z
i
k
CMR
25.5
−
32
82
Z
i
51
64
77
V
CC
V
CC
2.2
2.95
2.4
3.2
−
−
PD = LOW;
V
CC
= 2.8 V
PD = HIGH;
V
CC
= 2.8 V
I
CC
−
55
82
I
CC
−
1.0
4.2
4.5
4.8
3.1
3.4
3.7
I
line
= 15 mA
V
LN
V
LN
V
LN
V
LN
V
LN
V
LN
V
LN
∆V
LN
/∆T
−
1.75
2.25
3.55
3.65
4.9
−
−3
1.6
2.0
2.8
3.8
3.9
5.6
−
−1
−
CONDITION
SYMBOL
MIN.
TYP.
TEA1067
MAX.
UNIT
V
V
V
V
V
V
V
mV/K
2.25
3.35
4.05
4.15
6.5
7.5
1
V
V
mA
µA
1.35
V
V
kΩ
kΩ
dB
38.5
−
dB
June 1990
11
PHILIPS [ NXP SEMICONDUCTORS ]
