參數(shù)資料
型號: SI3200-KS
廠商: Silicon Laboratories Inc
文件頁數(shù): 61/128頁
文件大小: 0K
描述: IC LINEFEED INTRFC 100V 16SOIC
標(biāo)準(zhǔn)包裝: 48
系列: ProSLIC®
功能: 用戶線路接口概念(SLIC),CODEC
接口: GCI,PCM,SPI
電路數(shù): 2
電源電壓: 3.3V,5V
電流 - 電源: 110µA
功率(瓦特): 941mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm Width)裸露焊盤
供應(yīng)商設(shè)備封裝: 16-SOIC N
包裝: 管件
包括: 電池切換,BORSCHT 功能,DTMF 生成和解碼,F(xiàn)SK 音調(diào)生成,調(diào)制解調(diào)器和傳真音調(diào)檢測
Si3232
38
Preliminary Rev. 0.96
Not
Recommended
fo
r N
ew
D
esi
gn
s
4.6.1. Internal Sinusoidal Ringing
A sinusoidal ringing waveform is generated by using an
on-chip digital tone generator. The tone generator used
to generate ringing tones is a two-pole resonator with a
programmable frequency and amplitude. Since ringing
frequencies are low compared to the audio band
signaling frequencies, the sinusoid is generated at a
1 kHz rate. The ringing generator is programmed via the
RINGFREQ,
RINGAMP,
and
RINGPHAS
RAM
locations. The equations are as follows:
For example, to generate a 60 Vrms (87 VPK), 20 Hz
ringing signal, the equations are as follows:
Table 23. Register and RAM Locations used for Ringing Generation
Parameter
Register/RAM
Mnemonic
Register/RAM
Bits
Programmable
Range
Resolution
(LSB Size)
Ringing Waveform
RINGCON
TRAP
Sinusoid/Trapezoid
N/A
Ringing Active Timer Enable
RINGCON
TAEN
Enabled/Disabled
N/A
Ringing Inactive Timer Enable
RINGCON
TIEN
Enabled/Disabled
N/A
Ringing Oscillator Enable Monitor
RINGCON
RINGEN
Enabled/Disabled
N/A
Ringing Oscillator Active Timer
RINGTALO/
RINGTAHI
RINGTA[15:0]
0 to 8.19 s
125 ms
Ringing Oscillator Inactive Timer
RINGTILO/
RINGTIHI
RINGTI[15:0]
0 to 8.19 s
125 ms
Linefeed Control (Initiates Ringing
State)
LINEFEED
LF[2:0]
000 to 111
N/A
On-Hook Line Voltage
VOC
VOC[15:0]
0 to 63.3 V
1.005 V
(4.907 mV)
Ringing Voltage Offset
RINGOF
RINGOF[15:0]
0 to 63.3 V
1.005 V
(4.907 mV)
Ringing Frequency
RINGFRHI/
RINGFRLO
RINGFRHI[14:3]/
RINGFRLO[14:3]
4 to 100 Hz
Ringing Amplitude
RINGAMP
RINGAMP[15:0]
0 to 160.173 V
628 mV
(4.907 mV)
Ringing Initial Phase
Sinusoidal
Trapezoid
RINGPHAS
RINGPHAS[15:0]
N/A
0 to 1.024 s
N/A
31.25
s
Ringing Overhead Voltage
VOVRING
VOVRING[15:0]
0 to 63.3 V
1.005 V
(4.907 mV)
Ringing Speedup Timer
SPEEDUPR
SPEEDUPR[15:0]
0 to 40.96 s
1.25 ms
coeff
2
f
1000 Hz
-----------------------
cos
=
RINGFREQ
coeff
2
23
=
RINGAMP
1
4
--- 1coeff
1
coeff
+
------------------------
2
15
Desired V
PK
160.173 V
-----------------------------------
=
RINGPHAS
0
=
coeff
2
20
1000 Hz
-----------------------
.99211
=
cos
=
RINGFREQ
.99211
2
23
8322461
0x7EFD9D
==
=
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