tea1114auh NXP Semiconductors, tea1114auh Datasheet - Page 16

• Manufacturer Part Number: tea1114auh
• Description: Low Voltage Telephone Transmission Circuit With Dialler Interface And Regulated Strong Supply
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 Mar 21
Transmit stage (pins MIC+, MIC and DTMF)
M
G
CMRR
V
V
DTMF
G
G
Receiving stage (pins IR, RX, GAR and QR)
T
G
V
Z
Z
Z
G
G
G
G
HE RECEIVE AMPLIFIER
G
G
LN(max)(rms)
no(LN)
RX(max)(rms)
Low voltage telephone transmission circuit with
dialler interface and regulated strong supply
v(TX)
v(DTMF)
v(ct)
v(RX)
ICROPHONE AMPLIFIER
SYMBOL
i
i
i
v(TX)(f)
v(TX)(T)
v(DTMF)(f)
v(DTMF)(T)
v(RX)(f)
v(RX)(T)
AMPLIFIER
input impedance
voltage gain from
pins MIC+/MIC to pin LN
voltage gain variation with
frequency referred to 1 kHz
voltage gain variation with
temperature referred to 25 C
common mode rejection ratio
maximum sending signal
(RMS value)
noise output voltage at pin LN psophometrically
input impedance
voltage gain from pin DTMF to
pin LN
voltage gain variation with
frequency referred to 1 kHz
voltage gain variation with
temperature referred to 25 C
voltage gain from pin DTMF to
pin RX (confidence tone)
input impedance
voltage gain from pin IR to
pin RX
voltage gain variation with
frequency referred to 1 kHz
voltage gain variation with
temperature referred to 25 C
maximum receiving signal on
pin RX (RMS value)
(
differential between
pins MIC+ and MIC
single-ended between
pins MIC+/MIC and V
PIN
DTMF)
(
PARAMETER
(
PINS
PINS
IR
MIC+
AND
AND
RX)
MIC )
EE
V
f = 300 to 3400 Hz
T
I
I
weighted (P53 curve);
pins MIC+/ MIC shorted
through 200
V
MUTE = LOW
f = 300 to 3400 Hz
T
V
R
MUTE = LOW
V
f = 300 to 3400 Hz
T
I
drive; R
THD = 2%
line
line
P
amb
amb
amb
MIC
DTMF
DTMF
IR
L2
= 0 mA; sine wave
= 4 mV (RMS)
= 15 mA; THD = 2%
= 4 mA; THD = 10%
= 10 k ;
= 4 mV (RMS)
= 25 to +75 C
= 25 to +75 C
= 25 to +75 C
CONDITIONS
= 20 mV (RMS);
= 20 mV (RMS);
L2
16
= 10 k ;
43.2
1.8
25
32.4
0.4
MIN.
68
34
44.2
80
2.15
0.35
21
26
21.5
33.4
0.2
0.3
78
0.2
0.4
9.2
0.2
0.3
TYP.
Product specification
TEA1114A
45.2
27
34.4
MAX.
k
k
dB
dB
dB
dB
V
V
dBmp
k
dB
dB
dB
dB
k
dB
dB
dB
V
UNIT