TEA1111AT/C1 데이터 시트보기 (PDF) - Philips Electronics
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TEA1111AT/C1
Philips Electronics
TEA1111AT/C1 Datasheet PDF : 24 Pages
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Philips Semiconductors
Speech circuit with dialler interface, regulated
supply and earpiece volume control
Product specification
TEA1111A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
Receive stage (pins IR, GAR, QR and VCI)
THE EARPIECE AMPLIFIER (PINS IR AND QR)
Zi
Gv(QR)
∆Gv(QR)(f)
input impedance
voltage gain from pin IR to
pin QR
voltage gain variation with
frequency referenced to 1 kHz
VIR = 4 mV (RMS);
VVCI = 0 V
f = 300 to 3400 Hz
−
22
26.4
27.4
−
±0.2
∆Gv(QR)(T)
∆Gv(QR)
voltage gain variation with
temperature referenced to
25 °C
voltage gain reduction range
Tamb = −25 to +75 °C
−
external resistor connected −
between
pins GAR and QR
±0.3
−
VQR(max)(rms) maximum receiving signal on IP = 0 mA; sine wave drive; 0.5
0.6
pin QR (RMS value)
RL = 150 Ω; THD = 2%;
VVCI = VDD
IP = 0 mA; sine wave drive; 0.8
0.9
RL = 450 Ω; THD = 2%;
VVCI = VDD
Vno(QR)(rms) noise output voltage at pin QR IR open circuit;
−
−90
(RMS value)
RL = 150 Ω; VVCI = 0 V;
psophometrically weighted
(P53 curve)
VVCI = VDD
−
−75
VOLUME CONTROL (PIN VCI)
∆Gv(QR)max
∆Gv(QR)step
maximum increase in voltage
gain
step voltage gain
VIR = 4 mV (RMS);
VVCI = VDD
VIR = 4 mV (RMS)
12
14.5
3.85
4.85
Automatic gain control (pin AGC)
∆Gv(trx)
Istart
voltage gain control range for
microphone and earpiece
amplifiers w.r.t. Iline = 15 mA
highest line current for
maximum gain
Iline = 85 mA
−
6.0
−
23
Istop
lowest line current for min. gain
−
59
Mute function (pin MUTE)
VIL
VIH
IMUTE
∆Gv(trx)(m)
LOW-level input voltage
HIGH-level input voltage
input current
voltage gain reduction for:
microphone amplifier
MUTE = LOW
VEE − 0.4 −
VEE + 1.5 −
−10
−2
−
80
earpiece amplifier
DTMF amplifier
MUTE = LOW
MUTE = HIGH
−
80
−
80
MAX. UNIT
−
kΩ
28.4
dB
−
dB
−
dB
6
dB
−
V
−
V
−
dBVp
−
dBVp
17
dB
5.85
dB
−
dB
−
mA
−
mA
VEE + 0.3 V
VDD + 0.4 V
−
µA
−
dB
−
dB
−
dB
1999 Nov 22
15
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