uba2051t NXP Semiconductors, uba2051t Datasheet - Page 46

• Manufacturer Part Number: uba2051t
• Description: Uba2050 A ; Uba2051 A;c One-chip Telephone Ics With Speech, Dialler And Ringer Functions
• Manufacturer: NXP Semiconductors

Philips Semiconductors
2000 May 19
handbook, full pagewidth
One-chip telephone ICs with speech,
dialler and ringer functions
A
B
IC1
Fig.38 Application of the UBA2051 (continued from Fig.37).
28
27
26
25
24
23
22
21
20
19
18
17
16
15
GND
V CC
MIC
MIC
RX
GAR
QR
R1
R2
R3
R4
C1
C2
C3
C4
STORE
MEM
M1
M2
M3
100 k
C VCC
R E1
R tx3
C GAR
earpiece
P- T
*
/T
1
4
7
100 F
(10 V)
C ear
8.2
k
LNR/P
C feed
100 pF
R feed
C GARS
18 nF
18 nF
C tx1
C tx2
2
5
8
0
1 nF
(16 V)
10 F
1 k
47 F
(25 V)
R
22 k
22 k
#
3
6
9
R tx1
R tx2
R micm
R micp
46
1 k
1 k
MGT056
MIC1
1
2
3
4
5
6
7
8
R gb1
18.2
R GAR1
22.1 k
R GAR2
22.1 k
k
UBA2050(A); UBA2051(A;C)
16
15
14
13
12
11
10
9
MBS
FTSB
APT
PPS
PTS
MMS
FTSA
R gb2
7.15
S3
k
(50 V)
1 F
1 M
C gb
(7 )
GAIN BOOST
R
R
R
R
R
R
R
R gb3
3.65
k
MBS
APT
PPS
PTS
MMS
FTSA
FTSB
Product specification