SI3210DCQ1-EVB Silicon Laboratories Inc, SI3210DCQ1-EVB Datasheet - Page 37
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SI3210DCQ1-EVB
Manufacturer Part Number
SI3210DCQ1-EVB
Description
DAUGHTERCARD W/SI3201 INTERFACE
Manufacturer
Silicon Laboratories Inc
Series
ProSLIC®r
Type
SLIC/CODECr
Specifications of SI3210DCQ1-EVB
Contents
Evaluation Board and CD-ROM
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Si3210
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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- Download datasheet (2Mb)
When
LF[2:0] = 100 (direct Register 64), the ProSLIC will go
into the ringing state and start the first ring. At the
expiration of RAT, the ProSLIC will turn off the ringing
waveform and will go to the on-hook transmission state.
At the expiration of RIT, ringing will again be initiated.
This process will continue as long as the two timers are
enabled and the Linefeed Control register is set to the
ringing state.
2.4.2. Sinusoidal Ringing
To configure the ProSLIC for sinusoidal ringing, the
frequency and amplitude are initialized by writing to the
following indirect registers: RCO, RNGX, and RNGY.
The equations for RCO, RNGX, RNGY are as follows:
where
and f = desired ringing frequency in hertz.
Note: The ProSLIC uses registers that are both directly and indirectly mapped. A “direct” register is one that is mapped
Common Mode Bias Adjust During Ringing
Linefeed Control (Initiates Ringing State)
Ringing Oscillator Inactive Timer
Ringing Oscillator Active Timer
directly. An “indirect” register is one that is accessed using the indirect access registers (direct registers 28 through
31).
Ringing Voltage Offset Enable
Ringing Inactive Timer Enable
Ringing Active Timer Enable
the
Ringing Oscillator Enable
Ringing dc voltage offset
High Battery Voltage
Ringing initial phase
Ringing Waveform
Ringing frequency
Ringing amplitude
ringing
Parameter
coeff
RCO
state
=
=
cos
coeff
---------------------- -
1000 Hz
is
×
Table 30. Registers for Ringing Generation
2πf
(
2
invoked
15
)
by
Ringing State = 100b
sinewave and period
Range/ Description
Sets initial phase for
writing
Sine/Trapezoid
0 to 8 seconds
0 to 8 seconds
15 to 100 Hz
0 to –94.5 V
0 to 94.5 V
0 to 94.5 V
0 to 22.5 V
Rev. 1.42
trapezoid
Enabled/
Enabled/
Enabled/
Enabled/
Disabled
Disabled
Disabled
Disabled
for
In selecting a ringing amplitude, the peak TIP-to-RING
ringing voltage must be greater than the selected on-
hook line voltage setting (VOC, direct Register 72). For
example, to generate a 70 V
equations are as follows:
In addition, the user must select the sinusoidal ringing
waveform by writing TSWS = 0 (direct Register 34,
bit 0).
RNGX
RNGX
RCO
=
1
-- -
4
×
=
coeff
RNGX[15:0]
RNGY[15:0]
=
VBATH[5:0]
ROFF[15:0]
VCMR[3:0]
RCO[15:0]
RAT[15:0]
1
-- -
4
RIT[15:0]
Register
1 coeff
----------------------- -
1
0.99211
LF[2:0]
TSWS
×
RTAE
RTIE
+
RVO
ROE
–
Bits
coeff
=
0.00789
-------------------- -
1.99211
cos
RNGY
RNGY
×
×
Si3210/Si3211
---------------------- -
1000 Hz
(
2
2π 20
2
15
15
×
Direct Registers 48 and 49
Direct Registers 50 and 51
×
PK
2
)
×
15
=
=
Desired V
----------------------------------------------------------------------- -
=
20 Hz ringing signal, the
Indirect Register 19
Indirect Register 20
Indirect Register 21
Indirect Register 22
Indirect Register 40
0
×
0
Direct Register 34
Direct Register 34
Direct Register 34
Direct Register 34
Direct Register 34
Direct Register 64
Direct Register 74
32509
70
----- -
96
=
0.99211
=
Location
376
=
PK
96 V
7EFDh
(
=
0 to 94.5 V
0177h
37
)
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