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參數(shù)資料
| 型號： | TEA1096 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | Speech and listening-in IC |
| 中文描述： | TELEPHONE SPEECH CKT, PDIP28 |
| 封裝： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件頁數(shù)： | 11/32頁 |
| 文件大小： | 390K |
| 代理商： | TEA1096 |
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November 1994
11
Philips Semiconductors
Product Specification
Speech and listening-in IC
TEA1096; TEA1096A
Fig.9 Equivalent AC impedance between LN and V
EE
.
The equivalent impedance connected between LN and
V
EE
is illustrated in Fig.9.
Where:
L
EQ
= R
EQ
×
C
REG
×
R
SLPE
R
EQ
= 40 k
Z
SET
=
1
10
Z
SIMP
.
Remark
: a resistor R (REG-V
EE
) connected between REG
and V
EE
(to lower the regulated voltage) changes R
EQ
into
R
EQ
// R (REG-V
EE
), whereas a resistor R
REG-SLPE
connected between REG and SLPE (to increase the
regulated voltage) has no effect on R
EQ
.
Dynamic limiter of the microphone channel: pin DLS
The dynamic limiter in the microphone channel of the
TEA1096/TEA1096A prevents clipping of the microphone
signal, and limits the transmitted signal on LN to a
maximum value of typically 3.65 V (4.4 dBm).
Clipping on the microphone channel is prevented by
rapidly reducing the gain when the output stage starts to
saturate. The time in which the gain reduction is effected
(clipping attack time) is approximately a few milliseconds.
The microphone channel stays in the reduced gain mode
until the peaks of the signal no longer cause saturation.
The gain of the microphone channel then returns to its
normal value within the clipping release time.
Both attack and release time are proportional to the value
of the capacitor C
DLS
. The THD (Total Harmonic
Distortion) of the microphone amplifier in the reduced gain
mode stays below 2% up to 10 dB of input voltage
overdrive [provided that V
MICP
, V
MICM
is below 10 mV
(RMS)].
The dynamic limiter of the TEA1096/TEA1096A also
provides a microphone mute (secret function) when pin
DLS is short-circuited to V
EE
. The microphone gain is then
80 dB lower. The release time after a microphone mute is
approximately 10 ms.
相關PDF資料 |
PDF描述 |
|---|---|
| TEA1096A | Speech and listening-in IC |
| TEA1096AT | Speech and listening-in IC |
| TEA1096T | Speech and listening-in IC |
| TEA1098A | Speech and handsfree IC |
| TEA1098AH | Speech and handsfree IC |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TEA1096A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Speech and listening-in IC |
| TEA1096AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Speech and listening-in IC |
| TEA1096ATD-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Speech Circuit |
| TEA1096T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Speech and listening-in IC |
| TEA1096TD-T | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telephone Speech Circuit |
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