参数资料
型号: SI3066-B-FS
厂商: Silicon Laboratories Inc
文件页数: 27/40页
文件大小: 0K
描述: IC DAA ENH FCC LINE-SIDE 8SOIC
标准包装: 96
功能: 直接存取装置(DAA)
电路数: 1
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm Width)裸露焊盘
供应商设备封装: 8-SOIC-EP
包装: 管件
包括: 结帐音调检测,线路电压监视器,回路电流监视器,过载检测,振铃检测器
Si3066
Rev. 1.0
33
Reset settings = 0x01_1001
Reset settings = xxxx_xxxx
DAA Register 24. Ring Validation Control 3
Bit
D7D6D5
D4D3D2D1D0
Name
RNGV
RAS[5:0]
Type
R/W
Bit
Name
Function
7
RNGV
Ring Validation Enable.
0 = Ring validation feature is disabled.
1 = Ring validation feature is enabled in normal operating mode and low-power mode.
6
Reserved
Always write this bit to zero. Reads undefined.
5:0
RAS[5:0]
Ring Assertion Time.
These bits set the minimum ring frequency for a valid ring signal. During ring qualification,
a timer is loaded with the RAS[5:0] field upon a TIP/RING event and decrements at a reg-
ular rate. If a second or subsequent TIP/RING event occurs after the timer has timed out,
the frequency of the ring is too low and the ring is invalidated. The difference between
RAS[5:0] and RMX[5:0] identifies the minimum duration between TIP/RING events to
qualify as a ring, in binary-coded increments of 2.0 ms (nominal). A TIP/RING event typi-
cally occurs twice per ring tone period. At 20 Hz, TIP/RING events would occur every
1/(2 x 20 Hz) = 25 ms. To calculate the correct RAS[5:0] value for a frequency range
[f_min, f_max], the following equation should be used:
DAA Register 25-28. Reserved
Bit
D7D6D5
D4D3D2D1D0
Name
Type
Bit
Name
Function
7:0
Reserved
Always write this bit to zero. Reads undefined.
RAS 5:0
[]
1
2f_min
×
2 ms
×
-------------------------------------------, RMX RAS
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