tea1111auh NXP Semiconductors, tea1111auh Datasheet - Page 17

• Manufacturer Part Number: tea1111auh
• Description: Speech Circuit With Dialler Interface, Regulated Supply And Earpiece Volume Control
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 Feb 18
Receive stage (pins IR, GAR, QR and VCI)
T
G
V
V
V
Automatic gain control (pin AGC)
I
I
Mute function (pin MUTE)
V
V
I
start
stop
MUTE
Z
SYMBOL
HE EARPIECE AMPLIFIER
G
G
G
G
G
G
G
QR(max)(rms)
no(QR)(rms)
OLUME CONTROL
IL
IH
Speech circuit with dialler interface, regulated
supply and earpiece volume control
v(QR)
i
v(QR)(f)
v(QR)(T)
v(QR)
v(QR)max
v(QR)step
v(trx)
v(trx)(m)
input impedance
voltage gain from pin IR to
pin QR
voltage gain variation with
frequency referenced to 1 kHz
voltage gain variation with
temperature referenced to
25 C
voltage gain reduction range
maximum receiving signal on
pin QR (RMS value)
noise output voltage at pin QR
(RMS value)
maximum increase in voltage
gain
step voltage gain
voltage gain control range for
microphone and earpiece
amplifiers w.r.t. I
highest line current for
maximum gain
lowest line current for min. gain
LOW-level input voltage
HIGH-level input voltage
input current
voltage gain reduction for:
microphone amplifier
earpiece amplifier
DTMF amplifier
(
PIN
VCI)
PARAMETER
(
PINS
IR
line
AND
= 15 mA
QR)
V
V
f = 300 to 3400 Hz
T
external resistor connected
between
pins GAR and QR
I
R
V
I
R
V
IR open circuit;
R
psophometrically weighted
(P53 curve)
V
V
V
V
I
MUTE = LOW
MUTE = LOW
MUTE = HIGH
P
P
line
amb
IR
VCI
VCI
VCI
VCI
IR
VCI
IR
L
L
L
= 0 mA; sine wave drive;
= 0 mA; sine wave drive;
= 150 ; THD = 2%;
= 450 ; THD = 2%;
= 150 ; V
= 4 mV (RMS);
= 4 mV (RMS);
= 4 mV (RMS)
= 85 mA
= 0 V
= V
= V
= V
= V
= 25 to +75 C
CONDITIONS
DD
DD
DD
DD
17
VCI
= 0 V;
26.4
0.5
0.8
12
3.85
V
V
10
EE
EE
MIN.
+ 1.5
0.4
22
27.4
0.6
0.9
14.5
4.85
6.0
23
59
80
80
80
0.2
0.3
90
75
2
TYP.
Product specification
TEA1111A
28.4
6
17
5.85
V
V
EE
DD
MAX.
+ 0.3 V
+ 0.4 V
k
dB
dB
dB
dB
V
V
dBVp
dBVp
dB
dB
dB
mA
mA
dB
dB
dB
UNIT
A