參數(shù)資料
型號： 935262584512
廠商： NXP SEMICONDUCTORS
元件分類： 無繩電話/電話
英文描述： TELEPHONE SPEECH CKT, PDSO16
封裝： PLASTIC, SOT-109, SO-16
文件頁數(shù)： 9/30頁
文件大?。?/td> 178K
代理商： 935262584512
2000 Feb 18
17
Philips Semiconductors
Product specication
Speech circuit with dialler interface, regulated
supply and earpiece volume control
TEA1111A
Receive stage (pins IR, GAR, QR and VCI)
THE EARPIECE AMPLIFIER (PINS IR AND QR)
Zi
input impedance
22
k
Gv(QR)
voltage gain from pin IR to
pin QR
VIR = 4 mV (RMS);
VVCI =0 V
26.4
27.4
28.4
dB
G
v(QR)(f)
voltage gain variation with
frequency referenced to 1 kHz
f = 300 to 3400 Hz
±0.2
dB
G
v(QR)(T)
voltage gain variation with
temperature referenced to
25
°C
Tamb = 25 to +75 °C
±0.3
dB
G
v(QR)
voltage gain reduction range
external resistor connected
between
pins GAR and QR
6dB
VQR(max)(rms) maximum receiving signal on
pin QR (RMS value)
IP = 0 mA; sine wave drive;
RL = 150 ; THD = 2%;
VVCI =VDD
0.5
0.6
V
IP = 0 mA; sine wave drive;
RL = 450 ; THD = 2%;
VVCI =VDD
0.8
0.9
V
Vno(QR)(rms)
noise output voltage at pin QR
(RMS value)
IR open circuit;
RL = 150 ; VVCI =0V;
psophometrically weighted
(P53 curve)
90
dBVp
VVCI =VDD
75
dBVp
VOLUME CONTROL (PIN VCI)
G
v(QR)max
maximum increase in voltage
gain
VIR = 4 mV (RMS);
VVCI =VDD
12
14.5
17
dB
G
v(QR)step
step voltage gain
VIR = 4 mV (RMS)
3.85
4.85
5.85
dB
Automatic gain control (pin AGC)
Gv(trx)
voltage gain control range for
microphone and earpiece
ampliers w.r.t. Iline =15mA
Iline =85mA
6.0
dB
Istart
highest line current for
maximum gain
23
mA
Istop
lowest line current for min. gain
59
mA
Mute function (pin MUTE)
VIL
LOW-level input voltage
VEE 0.4
VEE + 0.3 V
VIH
HIGH-level input voltage
VEE + 1.5
VDD + 0.4 V
IMUTE
input current
10
2
A
Gv(trx)(m)
voltage gain reduction for:
microphone amplifier
MUTE = LOW
80
dB
earpiece amplifier
MUTE = LOW
80
dB
DTMF amplifier
MUTE = HIGH
80
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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