Specifications

AN93
166 Rev. 0.9
A feature comparison between the Si3018/10 and the Si3008 is presented in Table 106. This table is designed to
present a quick capability comparison to enable the selection of the best DAA chip for a particular design.
The Si3008 supports parallel handset off-hook/on-hook detection in both the on and off-hook modes. Loop current
is measured with 3.3 mA/bit resolution by the LCS bits. The LCS bits V loop current response is shown in
Figure 35, and the LCS transfer function is explained in Table 107. The DC I/V characteristic is illustrated in
Figure 36 and meets the requirements of the countries listed in Table 105. The Si3008 provides a ringer
impedance of approximately 5 M
Ω and has an on-hook line monitor mode that supports Type 1, Type 2, and UK
Caller ID.
Table 106. Si3018/10/Si3008 Feature Comparison
Feature Name Si3018/10 Si3008
Type I Caller ID
33
Type II Caller ID Snoop
33
UK Caller ID
33
Parallel phone detection
33
On-hook intrusion
33
Loop current limiting
ICL
3
Loop current loss detection
LCLD
3
Minimum loop current
MINI
3
Loop voltage adjust
DCV
3
DC impedance selection
DCR
3
AC impedance selection
ACT
3
Ringer impedance
RZ
3
Billing tone enable
BTE
3
Billing tone detect
BTD
3
On-hook speed
OHS
3