si3216-x-gm Silicon Laboratories, si3216-x-gm Datasheet - Page 29
si3216-x-gm
Manufacturer Part Number
si3216-x-gm
Description
Proslic Programmable Wideband Slic/codec With Ringing/battery Voltage Generation
Manufacturer
Silicon Laboratories
Datasheet
1.SI3216-X-GM.pdf
(122 pages)
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*Note: The Linefeed register (LF) is located in direct Register 64.
LF[2:0]*
Figure 17. Simplified ProSLIC Linefeed Architecture for TIP and RING Leads (One Shown)
000
001
010
100
101
011
110
111
TIP or
RING
C
R
AC
AC
Forward On-Hook Transmission
Reverse On-Hook Transmission
Control
AC Sense
AC
Linefeed State
Forward Active
Reverse Active
Ring Open
TIP Open
Control
Ringing
Loop
Open
AC
Codec
Audio
A/D
D/A
Table 22. ProSLIC Linefeed Operations
R
BP
Preliminary Rev. 0.91
DSP
Q
Q
N
P
Σ
R
E
Q
TIP and RING tri-stated
V
V
TIP tri-stated, RING active; used for ground start
Ringing waveform applied to TIP and RING
V
V
RING tri-stated, TIP active
DN
TIP
TIP
RING
RING
> V
> V
> V
> V
RING
RING
TIP
TIP
M onitor A/D
SLIC DAC
Control
; audio signal paths enabled
; audio signal paths enabled
A/D
D/A
Loop
DC
DC Sense
Description
Control
R
DC
DC
R
SE
Em itter Sense
Battery Sense
R
Si3216
BAT
V
BAT
29
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