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부품번호 | TEA1093T 기능 |
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기능 | Hands-free IC | ||
제조업체 | NXP Semiconductors | ||
로고 | |||
전체 28 페이지수
INTEGRATED CIRCUITS
DATA SHEET
TEA1093
Hands-free IC
Product specification
Supersedes data of 1995 May 18
File under Integrated Circuits, IC03
1996 Feb 09
Philips Semiconductors
Hands-free IC
Product specification
TEA1093
BLOCK DIAGRAM
handbook, full pagewidth
to
TEA106X
9 SUP
315 mV
TR1 SUPPLY
to dynamic
TR2 limiter POWER
DOWN
VBB 10 CVBB
PD 17
to
TEA106X
7 SREF
VV
SWITCH
VOLTAGE
STABILIZER
VA 15
GND 8
VBB
19 MUTET
CMIC 22 MIC
RMIC
VI
MICROPHONE CHANNEL
RTSEN 28 TSEN
CTSEN
CTENV
27 TENV
CTNOI
CRNOI
26 TNOI
23 RNOI
LOG
DUPLEX CONTROLLER
TEA1093
BUFFER
BUFFER
13
mV
ATTENUATOR
BUFFER
LOGIC
CRENV
24 RENV
RRSEN 25 RSEN
CRSEN
BUFFER
LOG
13 mV
Vdt
GAT 21 RGAT
MOUT 20
IV
MICGND 18
to TEA106X
IDT 16 RIDT
Vref
SWT 14
CSWT
STAB 13 RSTAB
VOICE
SWITCH
SWR 12
RSWR
RGAR 5 GAR
CLSP1
from voltage
6 LSP1 stabilizer
CDLC 1
DLC/
MUTER
DYNAMIC
LIMITER
4 LSP2
−1
VI
2
RIN1
IV
RIN2
2
3
from
TEA106X
from
TEA106X
VOLUME VOL 11
CONTROL
RVOL
LOUDSPEAKER CHANNEL
MGD216
Fig.1 Block diagram.
1996 Feb 09
4
4페이지 Philips Semiconductors
Hands-free IC
Product specification
TEA1093
Supply: pins SUP, SREF, VBB, GND, VA and PD
As can be seen from Fig.4, the line current is divided
between the speech-transmission circuit (ITR + ICC) and
the TEA1093 circuit (ISUP). It can be shown that:
ISUP = Iline − ITR − ICC
Where:
ITR = VSUP − VSREF/RSREF
VSUP − VSREF = 315 mV
RSREF = 100 Ω
ICC ≈ 1 mA
It follows that ISUP ≈ ILINE − 4 mA.
The TEA1093 stabilizes its own supply voltage of 3.6 V at
VBB. The voltage on VBB can be adjusted by means of an
external resistor RVA.
When RVA is connected between pin VA and GND, the
voltage on VBB is increased, when connected between
pin VA and VBB, it is decreased. This is shown in Fig.5.
Two capacitors of 4.7 nF (CSREF and CSTAB) are required
to ensure stability of the supply block. When VSUP is
greater than VBB + 0.4 V, the current ISUP is supplied to
VBB via TR1. When VSUP is less, the current is shunted to
GND via TR2, which prevents distortion on the line.
To reduce current consumption during pulse dialling or
register recall (flash), the TEA1093 is provided with a
power-down (PD) input. When the voltage on PD is HIGH,
the current consumption from SUP is 55 µA and from
VBB 400 µA. Therefore a capacitor of 470 µF (CVBB) is
sufficient to power the TEA1093 during pulse dialling.
handbook, full pagewidth
Iline
ISUP
9 SUP
RSREF
100 Ω
315 mV
ICC ITR
7 SREF V V
line
VCC
LN
TEA106X
TEA1093
VEE SLPE
CSREF
4.7 nF
CSTAB
4.7 nF
TR1
TR2
VBB 10
to dynamic
limiter POWER PD 17
DOWN
SWITCH
VOLTAGE
STABILIZER
VA 15 RVA
GND
8
CVBB
470 µF
MGD219
Fig.4 Supply arrangement.
1996 Feb 09
7
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
TEA1093 | Hands-free IC | NXP Semiconductors |
TEA1093T | Hands-free IC | NXP Semiconductors |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |