tea1111auh NXP Semiconductors, tea1111auh Datasheet - Page 18

• Manufacturer Part Number: tea1111auh
• Description: Speech Circuit With Dialler Interface, Regulated Supply And Earpiece Volume Control
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TEST AND APPLICATION INFORMATION
2000 Feb 18
handbook, full pagewidth
Speech circuit with dialler interface, regulated
supply and earpiece volume control
AB
BA
C bal
220 nF
R ast1
130 k
R ast2
3.92 k
R bal1
130
R bal2
820
D1
D3
100 nF
1N4004
R ast3
392
C IR
R prot
R SLPE
20
D2
D4
peripheral
V DD
V EE
DTMF
supply
Dz
V d
10 V
Fig.14 Basic application diagram.
C emc
10 nF
C DTMF
C REG
220 nF
4.7 F
R AGC
C VDD
220 F
MUTE
DTMF
SLPE
REG
AGC
V DD
LN
IR
18
TEA1111A
MUTE
Cz
Rz
V CC
LEDC
MIC
MIC
QR
GAR
V EE
VCI
619
R CC
R GARext
R TX3
100 F
C VCC
2R
R
R TX1
R TX2
C GAR
100 pF
VCI 1
VCI 0
2.4
k
C GARS
C MIC
C MIC
C EAR
10 F
1 nF
Product specification
BC858
TEA1111A
24
FCA059
MIC
MIC
earpiece