Philips Semiconductors
Product specification
Low voltage transmission circuits with
dialler interface
SYMBOL
Reduction of gain
∆G
v
MIC+ or MIC− to LN
TEA1062
TEA1062A
G
v
voltage gain from DTMF to QR
TEA1062
TEA1062A
Automatic gain control input AGC (pin 15)
∆G
v
controlling the gain from IR to QR
and the gain from MIC+, MIC− to LN
gain control range
I
lineH
I
lineL
highest line current for maximum gain
lowest line current for minimum gain
R6 = 110 kΩ
(between AGC and V
EE
)
I
line
= 70 mA
MUTE = HIGH
MUTE = LOW
R4 = 100 kΩ; R
L
= 300
Ω
MUTE = HIGH
MUTE = LOW
PARAMETER
CONDITIONS
TEA1062; TEA1062A
MIN.
TYP.
MAX.
UNIT
−
−
−
−
70
70
−17
−17
−
−
−
−
dB
dB
dB
dB
−
−
−
−5.8
23
61
−
−
−
dB
mA
mA
R line
handbook, full pagewidth
I line
I SLPE
0.5 mA
LN
R1
I CC
VCC
Ip
0.5 mA
C1
peripheral
circuits
R exch
TEA1062
TEA1062A
DC
AC
Vexch
REG
STAB
I SLPE
C3
R5
R9
SLPE
V EE
MBA357 - 1
Fig.9 Supply arrangement.
1997 Sep 03
13
PHILIPS [ NXP SEMICONDUCTORS ]
