U2090B
| Model | U2090B |
| Description | Monolithic Integrated Feature Phone Circuit |
| PDF file | Total 34 pages (File size: 675K) |
| Chip Manufacturer | ATMEL |
U4090B
1
68 nF
10
m
F
4.7 nF
b
I
B
RDC
V
DC
I
L
V
L
V
MP
S1
open
a
V
B
10
W
220
m
F
1000
m
F
47
m
F
2
3
4
5
6
7
8
9
10
11
12
13
14
15
I
MP
16
17
18
19
20
21
22
RGT
Figure 20. DC characteristics, line detection
Preliminary Information
ZEAR
I
M
62 k
W
32
31
30
29
28
27
40
39
38
37
36
35
34
33
V
LIDET
V
1
m
F
V
MIC
TELEFUNKEN Semiconductors
Rev. C1, 28-Oct-96
Line detection: S1a
VB (external supply): S1b
open pins should be connected as shown in figure 25
94 9133
26 (34)
V
M
RGR
RAGA
10
m
F
100
m
F
30 k
W
RGSA
26
25
24
23
Mico
V
L
220 nF 150 nF
1
m
F
44
43
42
41
U4090B
