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參數(shù)資料
| 型號： | 935263448518 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | SPEAKER PHONE CIRCUIT, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁數(shù)： | 20/43頁 |
| 文件大?。?/td> | 237K |
| 代理商： | 935263448518 |
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1999 Oct 14
27
Philips Semiconductors
Product specication
Speech and handsfree IC
TEA1098
Vdet(RSEN)
sensitivity detection on pin
RSEN; voltage change on pin
RENV when doubling the
current from RSEN
IRSEN = 0.8 to 160 A
18
mV
Signal envelope detectors
Isource(ENV)
maximum current sourced from
pin TENV or RENV
120
A
Isink(ENV)
maximum current sunk by pin
TENV or RENV
1.25 1
0.75
A
V
ENV
voltage difference between pins
RENV and TENV
when 10
A is sourced
from both RSEN and
TSEN; signal detectors
tracking; note 1
±3
mV
Noise envelope detectors
Isource(NOI)
maximum current sourced from
pin TNOI or RNOI
0.75
1
1.25
A
Isink(NOI)
maximum current sunk by pin
TNOI or RNOI
120
A
V
NOI
voltage difference between pins
RNOI and TNOI
when 5
A is sourced from
both RSEN and TSEN;
noise detectors tracking;
note 1
±3
mV
DIAL TONE DETECTOR
VHFRX(th)(rms)
threshold level at pin HFRX
(RMS value)
RRSEN =10k
25
mV
TX LEVEL LIMITER
VTXIN(th)(rms)
threshold level at pin TXIN
(RMS value)
RTSEN =10k
0.75
mV
DECISION LOGIC (PINS IDT AND SWT)
Signal recognition
VSrx(th)
threshold voltage between pins
RENV and RNOI to switch-over
from receive to Idle mode
VHFRX <VHFRX(th); note 2
13
mV
V
Stx(th)
threshold voltage between pins
TENV and TNOI to switch-over
from transmit to Idle mode
VTXIN <VTXIN(th); note 2
13
mV
Switch-over
Isource(SWT)
current sourced from pin SWT
when switching to receive mode
7.5
10
12.5
A
Isink(SWT)
current sunk by pin SWT when
switching to transmit mode
12.5 10
7.5
A
Iidle(SWT)
current sourced from pin SWT in
Idle mode
0
A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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