參數(shù)資料
型號(hào): 935263379112
廠商: NXP SEMICONDUCTORS
元件分類: 無繩電話/電話
英文描述: TELEPHONE SPEECH CKT, PDIP16
封裝: 0.300 INCH, PLASTIC, SOT-38-4, DIP-16
文件頁數(shù): 9/30頁
文件大?。?/td> 218K
代理商: 935263379112
2000 Mar 21
17
Philips Semiconductors
Product specication
Low voltage telephone transmission circuit with
dialler interface and regulated strong supply
TEA1114A
IRX(max)
maximum source and sink
current on pin RX (peak
value)
IP = 0 mA; sine wave
drive
50
A
Vno(RX)(rms)
noise output voltage at pin RX
(RMS value)
pin IR open-circuit;
RL2 =10k;
psophometrically
weighted (P53 curve)
86
dBVp
THE EARPIECE AMPLIFIER (PINS GAR AND QR)
Gv(QR)
voltage gain from pin RX to
pin QR
VIR = 4 mV (RMS);
RE1 =RE2 = 100 k
0
dB
G
v(QR)
voltage gain setting
RE1 = 100 k14
+12
dB
VQR(max)(rms)
maximum receiving signal on
pin QR (RMS value)
IP = 0 mA; sine wave
drive; RL1 = 150 ;
THD=2%
0.3
0.38
V
IP = 0 mA; sine wave
drive; RL1 = 450 ;
THD=2%
0.46
0.56
V
Vno(QR)(rms)
noise output voltage at pin QR
(RMS value)
IR open-circuit;
RL1 = 150 ;
RE1 =RE2 = 100 k
psophometrically
weighted (P53 curve)
86
dBVp
RE1 = 100 k;
RE2 =25k
98
dBVp
Automatic gain control (pin AGC)
G
v(trx)
voltage gain control range for
microphone and receive
ampliers with respect to
Iline =15mA
Iline =85mA
6.0
dB
Istart
highest line current for
maximum gain
23
mA
Istop
lowest line current for
minimum 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
VCC + 0.4 V
IMUTE
input current
210
A
G
v(trx)(m)
voltage gain reduction for:
microphone amplifier
MUTE = LOW
80
dB
receive 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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