tea1099h NXP Semiconductors, tea1099h Datasheet - Page 4

• Manufacturer Part Number: tea1099h
• Description: Speech And Handsfree Ic With Auxiliary Inputs/outputs And Analog Multiplexer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1999 Apr 08
handbook, full pagewidth
Speech and handsfree IC with auxiliary
inputs/outputs and analog multiplexer
TXAUX 43
AUXO 44
RECO 35
GARX 34
DTMF 32
RENV 7
RSEN 6
HFTX 36
TSEN 4
TENV 3
GALS 11
LSAO 12
RNOI 5
TNOI
MIC
MIC
TXIN 28
GND
AGC
DLC 8
QR 33
LN
15
18
13
31
30
2
ATT.
LINE CURRENT DETECTION
LOW VOLTAGE BEHAVIOUR
ENVELOPE AND NOISE
Tail currents for preamps
DETECTORS
TX AND RX
STARTER
DYNAMIC
LIMITER
AGC
Fig.1 Block diagram.
REG
16
COMPARATORS
BUFFERS
SLPE
14
AND
4
SWITCH
DUCO LOGIC
SWT STATUS
TEA1099H
CURRENT SOURCES
D6
POWER-DOWN
MULTIPLEXER
MANAGEMENT
CONTROL
ANALOG
SUPPLY
SWITCH
ATT.
VOICE
CONTROL
VOLUME
MGM296
Product specification
10
19
20
38
37
39
40
41
27
26
29
24
25
21
22
23
17
42
TEA1099H
9
1
V BB
ESI
PD
HFC
MUTT
MUTR
AUXC
GATX
GNDTX
SWT
IDT
SWR
VOL
HFRX
V DD
MICS
TXOUT
STAB
IR
RAUX