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參數(shù)資料
| 型號： | 935263449118 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | SPEAKER PHONE CIRCUIT, PDSO40 |
| 封裝： | PLASTIC, SOT-158, VSOP-40 |
| 文件頁數(shù)： | 18/43頁 |
| 文件大?。?/td> | 237K |
| 代理商： | 935263449118 |
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1999 Oct 14
25
Philips Semiconductors
Product specication
Speech and handsfree IC
TEA1098
Automatic Gain Control (pin AGC)
Gv(trx)
gain control range for transmit
and receive ampliers affected
by the AGC; with respect to
Iline =15mA
Iline = 70 mA; Gv(MIC-LN);
Gv(IR-RECO)
5.45
6.45
7.45
dB
Iline = 70 mA for Gv(HFTX-LN) 5.8
6.8
7.8
dB
Istart
highest line current for maximum
gain
23
mA
Istop
lowest line current for maximum
gain
57
mA
Logic inputs (pins HFC and MUTE)
VIL
LOW-level input voltage
0.4
+0.3
V
VIH
HIGH-level input voltage
1.8
VBB + 0.4 V
Ii
input current
VBB = 3.0 V
for pin HFC
36
A
for pin MUTE
3
12
A
Handsfree mode (HFC = HIGH)
HF MICROPHONE AMPLIFIER (PINS TXIN, TXOUT AND GATX)
Gv(TXIN-TXOUT)
voltage gain from pin TXIN to
TXOUT
VTXIN = 3 mV (RMS);
RGATX = 30.1 k
12.7
15.2
17.7
dB
G
v
voltage gain adjustment with
RGATX
15
+16
dB
G
v(f)
gain variation with frequency
referenced to 1 kHz
f = 300 to 3400 Hz
±0.1
dB
G
v(T)
gain variation with temperature
referenced to 25
°C
Tamb = 25 to +75 °C
±0.15
dB
Vno(TXOUT)(rms)
noise output voltage at pin
TXOUT; pin TXIN is shorted
through 200
in series with
10
F to GNDTX (RMS value)
psophometrically weighted
(p53 curve)
101
dBmp
G
v(mute)
gain reduction if not activated
see Table 2
60
80
dB
HF LOUDSPEAKER AMPLIFIER (PINS HFRX, LSAO, GALS AND VOL)
Gv(HFRX-LSAO)
voltage gain from pin HFRX to
LSAO
VHFRX = 30 mV (RMS);
RGALS = 255 k;
Iline =70mA
25.5
28
30.5
dB
G
v
voltage gain adjustment with
RGALS
28
+7
dB
Gv(f)
gain variation with frequency
referenced to 1 kHz
f = 300 to 3400 Hz
±0.3
dB
G
v(T)
gain variation with temperature
referenced to 25
°C
Tamb = 25 to +75 °C
±0.3
dB
Gv(vol)
voltage gain variation related to
RVOL = 1.9 kW
when total attenuation
does not exceed the
switching range
3
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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