TEA1098ATV datasheet(4/40 Pages) PHILIPS

Part #	TEA1098ATV

Description	Speech and handsfree IC

Download	40 Pages

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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4 / 40 page

2000 Mar 21

4

Philips Semiconductors

Preliminary speciﬁcation

Speech and handsfree IC

TEA1098A

BLOCK DIAGRAM

handbook, full pagewidth

FCA140

LINE CURRENT DETECTION

LOW VOLTAGE BEHAVIOUR

SUPPLY

MANAGEMENT

SWITCH

STARTER

AGC

GND

VBB

VDD

MICS

PD

AGC

LN

19 (15)

22 (18)

17 (13)

39 (36)

35 (32)

34 (31)

33 (30)

31 (28)

9 (4)

8 (3)

7 (2)

10 (5)

12 (7)

11 (6)

15 (11)

16 (12)

13 (8)

38 (35)

(17) 21

(1) 6

(41) 4

(22) 26

(21) 25

(25) 28

(24) 27

(29) 32

(26) 29

(27) 30

(39) 2

(37) 40

(38) 1

(20) 24

(19) 23

(10) 14

37 (34)

36 (33)

REG

20

(16)

18

(14)

SLPE

tail currents for preamps

POWER-DOWN

CURRENT SOURCES

ATTENUATOR

HFTX

MIC

+

MIC

−

DTMF

LOGIC

INPUTS

DECODING

HFC

MUTE

GATX

TXO

SWT

GNDTX

TXI

TEA1098A

TX AND RX

ENVELOPE AND NOISE

DETECTORS

TSEN

TENV

TNOI

RNOI

RENV

RSEN

LSAO

GALS

BUFFERS

AND

COMPARATORS

DUCO LOGIC

SWT STATUS

VOICE

SWITCH

VOLUME

CONTROL

IDT

STAB

SWR

EVCI

(42) 5

LVCI

HFRX

ATTENUATOR

DLC

DYNAMIC

LIMITER

IR

RECO

EARO

GARX

R1

(40) 3

BPC

Fig.1 Block diagram.

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TEA1098ATV Datasheet(PDF) 4 Page - NXP Semiconductors

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