TEA1067 View Datasheet(PDF) - Philips Electronics
Part Name
Description
MFG CO.
TEA1067
Philips Electronics
'TEA1067' PDF : 28 Pages View PDF
Philips Semiconductors
Low voltage versatile telephone
transmission circuit with dialler interface
Product specification
TEA1067
PARAMETER
Gain adjustment GAR
Gain variation of receiving
amplifier achievable by
varying R4 between
GAR and QR
Mute input
Input voltage HIGH
Input voltage LOW
Input current
Gain reduction
MIC+ or MIC− to LN
Voltage gain from DTMF
to QR+ or QR−
Power-down input PD
Input voltage HIGH
Input voltage LOW
Input current
Automatic gain control
input AGC
Controlling the gain
from IR to QR+/QR− and
the gain from MIC+/MIC−
to LN; R6 between AGC
and VEE
Gain control range
Highest line current for
maximum gain
Minimum line current for
minimum gain
Reduction of gain between
Iline = 15 mA and
Iline = 35 mA
CONDITION
SYMBOL
MIN.
TYP. MAX. UNIT
MUTE = HIGH
MUTE = HIGH;
R4 = 100 kΩ;
single-ended;
RL = 300 Ω
∆Gv
VIH
VIL
IMUTE
∆Gv
Gv
VIH
VIL
IPD
−11
−
1.5
−
−
−
−
8
−
70
+8
dB
VCC
V
0.3
V
15
µA
−
dB
−21
−19
−17
dB
1.5
−
−
−
−
5
VCC
V
0.3
V
10
µA
R6 = 110 kΩ
Iline = 70 mA
∆Gv
−5.5
−5.9
−6.3
dB
Iline
−
23
−
mA
Iline
−
61
−
mA
∆Gv
−1.0
−1.5
−2.0
dB
June 1990
14
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