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UBA1702AT View Datasheet(PDF) - Philips Electronics

Part Name
Description
View to exact match
UBA1702AT
Philips
Philips Electronics Philips
UBA1702AT Datasheet PDF : 24 Pages
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Philips Semiconductors
Line interrupter driver and ringer
BLOCK DIAGRAM
Product speciļ¬cation
UBA1702; UBA1702A
handbook, full pagewidth
SDO
SDI
1
2
14 V
4
DPI
28
EHI
VSS
SWITCH
DRIVER
CDO
CLA
25 24
SPI
CDA
SPO
26 5
6
VSS VDD
SENSE
Sref
Sref
LINE CURRENT MANAGEMENT
SPEECH
ZENER PROTECTION
S ref
R ref
VDD
MUTE SWITCH
VSS
9
ZPA
10
MSA
8
MSI
19
V BB
VDD
18
12
RFO
23
RPI
SUPPLY
Vref
V SS
RINGER FREQUENCY
DETECTION
VDD
V SS
VDD
Sref
SPO
REFERENCES
V SS
Rref
RINGER
UBA1702; UBA1702A
UBA1702T; UBA1702AT
VRR
V SS
VRR
V SS
VDD
1/2 VDD
VDD
RINGER MELODY INPUT AND PIEZO DRIVER
17
V SS
7
V EE
22
ROA
20
ROB
R ref
RINGER
PROTECTION
R ref
VSS
RINGER
THRESHOLD
V RR
VDD
VDD
VOLUME
CONTROL
DIGITAL
-TO-
ANALOG
CONVERTER
V SS
VDD
V SS
VDD
V SS
13
RV0
14
RV1
15
RV2
21 11
RTA
VRR
16
RMI
MBE184
1997 Sep 29
Fig.1 Block diagram.
4
 

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