UBA1707 NXP Semiconductors, UBA1707 Datasheet - Page 28

• Manufacturer Part Number: UBA1707
• Description: Cordless Telephone, Answering Machine Line Interface
• Manufacturer: NXP Semiconductors

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(1) In case of low line current in voltage regulation mode.
(2) Only required in current regulation mode.
(3) To improve EMC performance; necessary for stability.
(4) To improve stability only in current regulation mode.
a/b
b/a
4
BRIDGE
BOD
BR211-240
BAS11
Z SET
619
(MPSA42
BUX86
C EMC
10 nF
TN SW
(1)
C VCC
10 F
)
(3)
1N4148
V VCC
TP DARL
MPSA92
D SW
I CC
100 nF
C TXIM
100 nF
C TXIP
R PLD
20 k
V CC
TXI
TXI
C LCC
6.8 pF
R ON-HOOK
Fig.18 Typical application.
V LN
100 k
18
17
(4)
25
2
6
LN
LCC
D PROT
1N4148
C CST
22 pF
19
SWI3
7
CST
20
R LVI
1 M
SWI2
4
LVI
TN ON-HOOK
MPSA42
260 k
R ast1
21
SWI1
C LVI
470 pF
(2)
UBA1707
3
REG
11
C REG
4.7 F
MICROCONTROLLER
EHI
BZX79C8V2
12
9
DATA
AGC
13
5
EN
RGL
R RGL
7.15 k
14
CLK
28
DLC
10
C DLC
220 nF
RXI
C RXI
100 nF
23
8
3.92 k
R ast2
RXO
LSPGND
15
16
27
22
26
24
C RXO
1
SLPE
AXI
AXO
LSAI2
GND
LSAI1
LSAO
R ast3
392
C LSAI1
100 nF
100 nF
C LSAI2
100 nF
C AXI
C AXO
C LSAO
220 F
Z bal
R SLPE
LSP
16
10
MGK718