參數(shù)資料
型號： SI3210-KT
廠商： Silicon Laboratories Inc
文件頁數(shù)： 91/148頁
文件大?。?/td> 0K
描述： IC PROSLIC W/DC-DC CONV 38TSSOP
標(biāo)準(zhǔn)包裝： 50
系列： ProSLIC®
功能： 用戶線路接口概念（SLIC），CODEC
接口： PCM，SPI
電路數(shù)： 1
電源電壓： 3.3V，5V
電流 - 電源： 88mA
功率（瓦特）： 700mW
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 38-TFSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 38-TSSOP
包裝： 管件
包括： BORSCHT 功能，DTMF 生成和解碼，F(xiàn)SK 生成，脈沖測量生成，語音回送測試模式
Si3210/Si3211
Rev. 1.61
47
Not
Recommended
fo
r N
ew
D
esi
gn
s
2.5. Pulse Metering Generation
There is an additional tone generator suitable for
generating tones above the audio frequency. This
oscillator is provided for the generation of billing tones
that are typically 12 kHz or 16 kHz. The generator
follows the same algorithm as described in "2.3. Tone
Generation" on page 40 with the exception that the
sample rate for computation is 64 kHz instead of 8 kHz.
The equations are as follows:
where full scale Vrms =0.85Vrms for a matched load.
The initial phase of the pulse metering signal is set to 0
internally; so, there is no register to serve this purpose.
The pulse metering generator timers and associated
pulse metering timer registers are similar to those of the
tone generators. These timers count 8 kHz sample
periods like the other tones even though the sinusoid is
generated at 64 kHz.
Table 31. Associated Registers for Ring Trip Detection
Parameter
Register
Location
Ring Trip Interrupt Pending
RTIP
Direct Register 19
Ring Trip Interrupt Enable
RTIE
Direct Register 22
Ring Trip Detect Debounce Interval
RTDI[6:0]
Direct Register 70
Ring Trip Threshold
RPTP[5:0]
Indirect Register 29
Ring Trip Filter Coefficient
NRTP[12:0]
Indirect Register 36
Ring Trip Detect Status (monitor only)
RTP
Direct Register 68
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).
Table 32. Recommended Ring Trip Values for Ringing
Ringing
Frequency
NRTP
RPTP
RTDI
Hz
decimal
hex
decimal
hex
decimal
hex
16.667
64
0200
34 mA
3600
15.4 ms
0F
20
100
0320
34 mA
3600
12.3 ms
0B
30
112
0380
34 mA
3600
8.96 ms
09
40
128
0400
34 mA
3600
7.5 ms
07
50
213
06A8
34 mA
3600
5 ms
05
60
256
0800
34 mA
3600
4.8 ms
05
coeff
2
f
64000 Hz
--------------------------
cos
=
PLSCO
coeff
2
15
1
–
=
PLSX
1
4
--- 1
coeff
–
1
coeff
+
------------------------
2
15
1
–
Desired V
rms
Full Scale V
rms
--------------------------------------------
=
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