參數(shù)資料
型號: SI3225-G-GQ
廠商: Silicon Laboratories Inc
文件頁數(shù): 64/112頁
文件大?。?/td> 0K
描述: IC PROSLIC/CODEC DUAL 64TQFP
標準包裝: 160
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: 65mA
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: 64-TQFP
供應商設備封裝: 64-TQFP(10x10)
包裝: 托盤
包括: 電池切換,BORSCHT 功能,DTMF 生成和解碼,F(xiàn)SK 音調生成,調制解調器和傳真音調檢測
Si3220/25 Si3200/02
Rev. 1.3
55
Not
Recommended
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3.15.1. Ringtrip Timeout Counter
The Dual ProSLIC incorporates a ringtrip timeout
counter, RTCOUNT, that will monitor the status of the
ringing control. When exiting ringing, the Dual ProSLIC
will allow the ringtrip timeout counter a sufficient amount
of time (RTCOUNT x 1.25 ms/LSB) for the mode to
switch to On-hook Transmission or Active. The mode
that is being exited to is governed by whether the
command to exit ringing is a ringing active timer
expiration (on-hook transmission) or ringtrip/manual
mode change (active mode). The ringtrip timeout
counter ensures ringing is exited within its time setting
(RTCOUNT x 1.25 ms/LSB, typically 200 ms).
3.15.2. Ringtrip Debounce Interval
The ac and dc ring trip debounce intervals can be
calculated based on the following equations:
RTACDB = tdebounce (1600/RTPER)
RTDCDB = tdebounce (1600/RTPER)
Figure 27. Ring Trip Detect Processing Circuitry
Input
Signal
Processor
Digital
LPF
+
_
AC Ring Trip
Threshold
RTPER
LFS
ILOOP
RTACTH
Debounce
Filter_AC
Interrupt
Logic
RTRIPS
RTP
RTRIPE
+
_
DC Ring Trip
Threshold
RTDCTH
Debounce
Filter_DC
RTACDB
RTDCDB
Digital
LPF
Full Wave
Rectifier
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