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| 型號： | SI3210M-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)： | 37/122頁 |
| 文件大?。?/td> | 1950K |
| 代理商： | SI3210M-BT |
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Si3210/Si3211/Si3212
Preliminary Rev. 1.11
37
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
which are typically 12 kHz or 16 kHz. The generator
follows the same algorithm as described in "Tone
Generation" on page 30 with the exception that the
sample rate for computation is 64 kHz instead of 8 kHz.
The equations are as follows:
where full scale V
RMS
= 0.85 V
RMS
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 that 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 29. 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 30. 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
64000 Hz
-------------------------
cos
=
PLSCO
coeff
2
15
1
–
(
)
=
PLSX
1
4
--
1
coeff
+
-----–
2
15
1
–
(
)
Desired V
Full Scale V
RMS
----------------------------------------------
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI3210 | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3210-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3210-KT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3211-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3211-KT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
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