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參數(shù)資料
| 型號(hào)： | 935263448557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | SPEAKER PHONE CIRCUIT, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁(yè)數(shù)： | 19/43頁(yè) |
| 文件大?。?/td> | 237K |
| 代理商： | 935263448557 |
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1999 Oct 14
26
Philips Semiconductors
Product specication
Speech and handsfree IC
TEA1098
VHFRX(rms)(max) maximum input voltage at pin
HFRX (RMS value)
Iline =70mA;
RGALS =33k; for 2%
THD in the input stage
580
mV
Vno(LSAO)(rms)
noise output voltage at pin
LSAO; pin HFRX is open-circuit
(RMS value)
psophometrically weighted
(p53 curve)
79
dBVp
Gv(mute)
gain reduction if not activated
see Table 2
60
80
dB
VLSAO(rms)
output voltage (RMS value)
IBB = 0 mA; IDD =1mA
Iline =18mA
0.9
V
Iline =30mA
1.3
V
Iline >50mA
1.6
V
ILSAO(max)
maximum output current at pin
LSAO (peak value)
150
300
mA
DYNAMIC LIMITER (PINS LSAO AND DLC)
tatt
attack time
when VHFRX jumps from
20 to 20 mV + 10 dB
5ms
when VBB jumps below
VBB(th)
1
ms
trel
release time
when VHFRX jumps from
20 mV + 10 dB to 20 mV
100
ms
THD
total harmonic distortion
VHFRX = 20 mV + 10 dB;
t>tatt
12
%
VBB(th)
VBB limiter threshold
2.7
V
MUTE RECEIVE (PIN DLC)
VDLC(th)
threshold voltage required on
pin DLC to obtain mute receive
condition
0.4
+0.2
V
IDLC(th)
threshold current sourced by pin
DLC in mute receive condition
VDLC = 0.2 V
100
A
G
vrx(mute)
voltage gain reduction in mute
receive condition
VDLC = 0.2 V
60
80
dB
TX AND RX ENVELOPE AND NOISE DETECTORS (PINS TSEN, TENV, TNOI, RSEN, RENV AND RNOI)
Preampliers
Gv(TSEN)
voltage gain from pin
TXIN to TSEN
40
dB
Gv(RSEN)
voltage gain from pin
HFRX to RSEN
0
dB
Logarithmic compressor and sensitivity adjustment
Vdet(TSEN)
sensitivity detection on pin
TSEN; voltage change on pin
TENV when doubling the current
from TSEN
ITSEN = 0.8 to 160 A
18
mV
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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