TEA1098 データシートの表示（PDF） - Philips Electronics
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TEA1098 Datasheet PDF : 40 Pages
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Philips Semiconductors
Speech and handsfree IC
Product specification
TEA1098
BLOCK DIAGRAM
LN 18 (15)
STARTER
REG SLPE
19 17
(16) (14)
R1
LINE CURRENT DETECTION
LOW VOLTAGE BEHAVIOUR
AGC 21 (18)
AGC
GND 16 (13) Tail currents for preamps
HFTX 39 (36)
DTMF 35 (32)
MIC+ 34 (31)
MIC− 33 (30)
ATTENUATOR
SWITCH
TEA1098
TXIN 31 (28)
TSEN 8 (4)
TENV 7 (3)
TNOI 6 (2)
RNOI 9 (5)
RENV 11 (7)
RSEN 10 (6)
TX AND RX
ENVELOPE AND NOISE
DETECTORS
BUFFERS
AND
COMPARATORS
DUCO LOGIC
SWT STATUS
GALS 14 (11)
LSAO 15 (12)
DLC 12 (8)
DYNAMIC
LIMITER
RECO 38 (35)
GARX 37 (34)
QR 36 (33)
(10) 13 VBB
SUPPLY
MANAGEMENT
(19) 22 VDD
(20) 23 MICS
POWER-DOWN
(38) 1 PD
CURRENT SOURCES
LOGIC
INPUTS
DECODING
(37) 40 HFC
(39) 2 MUTE
(27) 30 GATX
(26) 29 TXOUT
(29) 32 GNDTX
(24) 27 SWT
(25) 28 IDT
VOICE
SWITCH
(21) 24 STAB
(22) 25 SWR
VOLUME (23) 26 VOL
CONTROL
(1) 5 HFRX
(17) 20 IR
ATTENUATOR
Pin numbers in parenthesis apply to the TEA1098H. Pin numbers not in parenthesis apply to the TEA1098TV.
Fig.1 Block diagram.
1999 Oct 14
4
MGL317
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