Philips Semiconductors
Low voltage versatile telephone transmission circuit
with dialler interface and transmit level dynamic limiting
Product specification
TEA1064A
CHARACTERISTICS
Iline = 11 to 140 mA; VEE = 0 V; f = 800 Hz; Tamb = 25 °C; RL = 600 Ω; tested in the circuit of Fig.22 or 23); unless
otherwise specified
PARAMETER
CONDITIONS
SYMBOL MIN. TYP. MAX. UNIT
Supplies LN, VCC1, VCC2 (pins 1, 16, 19)
Reference DC voltage between
VCC2 and SLPE
RVA not connected
Variation with temperature
Variation with line current referred
to 15 mA
With RVA connected between
REG and SLPE
DC line voltage:
voltage drop between LN and VEE
at Iline = 15 mA
at Iline = 100 mA
at Iline = 140 mA
Voltage drop under low current
conditions
Internal supply current ICC1:
current into pin VCC1
Microphone inputs MIC−, MIC+
(pins 8, 9)
Input impedance:
differential
single-ended
Common mode rejection ratio
Iline = 15 mA
Ip = 0; 4 mA
Iline = 15 mA
Iline = 100 mA
RVA = 33 kΩ
RVA = 20 kΩ
MIC−, MIC+
inputs open;
R15 = 392 Ω;
without RVA
Ip = 0 mA
Ip = 2 mA
Ip = 4 mA
Ip = 2 mA
Ip = 2 mA
Ip = 0 mA
Iline = 2 mA
Iline = 4 mA
Iline = 7 mA
Iline = 11 mA
VCC1 = 2.8 V
PD = LOW
PD = HIGH
VCC2-SLPE
3.05
VCC2-SLPE/∆T −3.0
3.3
−1.0
3.55 V
1.0 mV/K
∆VCC2-SLPE
−
60
−
mV
VCC2-SLPE
VCC2-SLPE
3.6 3.8
3.95 4.2
4.2 V
4.65 V
VLN
3.4 3.6 4.0 V
VLN
4.2 4.4 4.8 V
VLN
4.9 5.1 5.5 V
VLN
−
6.1 7.0 V
VLN
−
7.0 7.8 V
VLN
−
1.8 −
V
VLN
−
2.2 −
V
VLN
−
3.2 −
V
VLN
−
3.5 −
V
ICC1
−
1.3 1.6 mA
ICC1
−
60
82
µA
Zi
Zi
CMRR
51
64
77
kΩ
25.5 32.0 38.5 kΩ
−
82
−
dB
March 1994
19