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參數(shù)資料
| 型號： | SI3212-BT |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | Codec |
| 英文描述： | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| 中文描述： | ProSLIC產(chǎn)品可編程的CMOS用戶接口/有振鈴編解碼器/電池電壓生成 |
| 文件頁數(shù)： | 34/122頁 |
| 文件大?。?/td> | 1950K |
| 代理商： | SI3212-BT |
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Si3210/Si3211/Si3212
34
Preliminary Rev. 1.11
When the ringing state is invoked by writing
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.
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.
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
PK
20 Hz ringing signal, the
equations are as follows:
Table 28. Registers for Ringing Generation
Parameter
Range/ Description
Register
Bits
TSWS
RVO
Location
Ringing Waveform
Ringing Voltage Offset Enable
Sine/Trapezoid
Enabled/
Disabled
Enabled/
Disabled
Enabled/
Disabled
Enabled/
Disabled
0 to 8 sec
Direct Register 34
Direct Register 34
Ringing Active Timer Enable
RTAE
Direct Register 34
Ringing Inactive Timer Enable
RTIE
Direct Register 34
Ringing Oscillator Enable
ROE
Direct Register 34
Ringing Oscillator Active Timer
RAT[15:0]
Direct Registers 48 and
49
Direct Registers 50 and
51
Direct Register 64
Direct Register 74
Indirect Register 19
Indirect Register 20
Indirect Register 21
Indirect Register 22
Ringing Oscillator Inactive Timer
0 to 8 sec
RIT[15:0]
Linefeed Control (Initiates Ringing State)
High Battery Voltage
Ringing dc voltage offset
Ringing frequency
Ringing amplitude
Ringing initial phase
Ringing State = 100b
0 to –94.5 V
0 to 94.5 V
15 to 100 Hz
0 to 94.5 V
Sets initial phase for
sinewave and period
for
trapezoid
0 to 22.5 V
LF[2:0]
VBATH[5:0]
ROFF[15:0]
RCO[15:0]
RNGX[15:0]
RNGY[15:0]
Common Mode Bias Adjust During Ringing
Note:
The ProSLIC uses registers that are both directly and indirectly mapped. A “direct” register is one that is mapped
directly. An “indirect” register is one that is accessed using the indirect access registers (direct registers 28 through
31).
VCMR[3:0]
Indirect Register 40
RCO
coeff
2
15
(
)
=
coeff
1000 Hz
----------------------
cos
=
RNGX
1
4
--
1
coeff
+
-----–
2
15
Desired V
0 to 94.5 V
-----------------------------------------------------------------------
(
)
96 V
=
RNGY
0
=
coeff
1000 Hz
----------------------
0.99211
=
cos
=
RCO
0.99211
2
15
(
)
32509
7EFDh
=
=
=
RNGX
1
4
--
1.99211
---------------------
2
15
70
96
376
0177h
=
=
=
RNGY
0
=
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| SI3212-KT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3311-H | SI3311-H |
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| Si4112G-BT* | Hook-Up Wire; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Color:Black; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1015, CSA Type TEW, JQA-F-, Passes VW-1 Flame Test; Conductor Material:Copper RoHS Compliant: Yes |
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