TEA1093T Philips Semiconductors, TEA1093T Datasheet - Page 4

• Manufacturer Part Number: TEA1093T
• Description: Hands-free IC
• Manufacturer: Philips Semiconductors

Philips Semiconductors
BLOCK DIAGRAM
1996 Feb 09
handbook, full pagewidth
Hands-free IC
C LSP1
TEA106X
TEA106X
C TSEN
C TENV
C TNOI
C RNOI
C RENV
C RSEN
V BB
R MIC
R RSEN
R GAR
R TSEN
C MIC
to
to
C DLC
9
7
19
22
28
27
26
23
24
25
5
6
1
4
SUP
SREF
TSEN
TENV
TNOI
RNOI
RENV
RSEN
GAR
LSP1
LSP2
DLC/
MUTER
MUTET
MIC
from voltage
stabilizer
DYNAMIC
BUFFER
BUFFER
BUFFER
LIMITER
V
LOG
BUFFER
LOG
315 mV
V
I
V
Fig.1 Block diagram.
ATTENUATOR
MICROPHONE CHANNEL
DUPLEX CONTROLLER
1
13 mV
V dt
TR1
TEA1093
SWITCH
LOUDSPEAKER CHANNEL
13
mV
TR2
4
SUPPLY
V
I
STABILIZER
VOLTAGE
LOGIC
to dynamic
limiter
POWER
DOWN
SWITCH
CONTROL
VOICE
VOLUME
I
I
V
V
MICGND
2
V ref
MOUT
STAB
SWR
SWT
RIN1
RIN2
GND
GAT
V BB
VOL
IDT
PD
VA
10
17
15
21
20
18
16
14
13
12
11
8
2
3
MGD216
C VBB
C SWT
R GAT
R STAB
R SWR
R IDT
Product specification
to TEA106X
R VOL
from
TEA106X
from
TEA106X
TEA1093