U4089B-PFN ATMEL [ATMEL Corporation], U4089B-PFN Datasheet - Page 20

• Manufacturer Part Number: U4089B-PFN
• Description: Monolithic Integrated Feature Phone Circuit
• Manufacturer: ATMEL [ATMEL Corporation]

Figure 20. DC Voltage Current Test
20
U4089B-P
CB
+
RDC
+
RVMP
1.65K
RGS
S1
CMP
4.7U
RSAO
100K
open
RSENSE
U7
10
44 GT
11
20
10
13
21
1
3
4
6
8
9
7
IND
VB
VL
DTMF
MIC1
SENSE
MIC2
GND
VMP
GT
SAO
IMPSEL
TSACL
ATAFS
RECIN
INLDT
INLDR
RECO
TLDR
MUTX
TTXA
TLDT
IREF
GSA
STO
AGA
GR
SAI
STI
VM
25
42
36
32
31
29
27
26
24
41
40
39
33
30
28
23
22
CTXA
CLDR
CLDT
CRIN
2.2N
47N
1U
2.2N
100U
1N
1N
+
CM
RNW2
RATAFS
100
RGSA
RH
RGR
3K
open
RAGA
RREF
62K
68N
CH
2MEG
2MEG
ISTO
+
4518A–CORD–05/02
+
+