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參數(shù)資料
| 型號(hào)： | SI3210M-KT |
| 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)： | 36/122頁 |
| 文件大小： | 1950K |
| 代理商： | SI3210M-KT |
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Si3210/Si3211/Si3212
36
Preliminary Rev. 1.11
leakages, etc. The total I
LOAD,PK
current should be
smaller than 80 mA.
where
β
is the minimum expected current gain of
transistors Q5 and Q6.
The minimum value for VBATH is therefore given by the
following:
The ProSLIC is designed to create a fully balanced
ringing waveform, meaning that the TIP and RING
common mode voltage, (V
TIP
+ V
RING
)/2, is fixed. This
voltage is referred to as VCM_RING and is
automatically set to the following:
VCMR is an indirect register which provides the
headroom by the ringing waveform with respect to the
VBATH rail. The value is set as a 4-bit setting in indirect
Register 40 with an LSB voltage of 1.5 V/LSB.
Register 40 should be set with the calculated V
OVR
to
provide voltage headroom during ringing.
Silicon revisions C and higher support the option to
briefly increase the maximum differential current limit
between the voltage transition of TIP and RING from
ringing to a dc linefeed state. This mode is enabled by
setting ILIMEN = 1 (direct Register 108, bit 7).
Ring Trip Detection
A ring trip event signals that the terminal equipment has
gone off-hook during the ringing state. The ProSLIC
performs ring trip detection digitally using its on-chip
monitor A/D converter. The functional blocks required to
implement ring trip detection is shown in Figure 21. The
primary input to the system is the Loop Current Sense
value provided by the current monitoring circuitry and
reported in direct Register 79. LCS data is processed by
the input signal processor when the ProSLIC is in the
ringing state as indicated by the Linefeed Shadow
register (direct Register 64). The data then feeds into a
programmable digital low pass filter, which removes
unwanted ac signal components before threshold
detection.
Figure 21. Ring Trip Detector
The output of the low pass filter is compared to a
programmable threshold, RPTP (indirect Register 29).
The threshold comparator output feeds a programmable
debouncing filter. The output of the debouncing filter
remains in its present state unless the input remains in
the opposite state for the entire period of time
programmed by the ring trip debounce interval,
RTDI[6:0] (direct Register 70). If the debounce interval
has been satisfied, the RTP bit of direct Register 68 will
be set to indicate that a valid ring trip has occurred. A
ring trip interrupt is generated if enabled by the RTIE bit
(direct Register 22). Table 29 lists the registers that
must be written or monitored to correctly detect a ring
trip condition.
The recommended values for RPTP, NRTP, and RTDI
vary according to the programmed ringing frequency.
Register values for various ringing frequencies are
given in Table 30.
V
OVR
I
LOAD
,
PK
---+
80.6
1
β
1 V
+
=
VBATH
V
AC
,
PK
V
ROFF
V
OVR
+
+
=
VCM
_
RING
----------------------–
2
=
LCS
ISP_OUT
LFS
NRTP
RPTP
RTDI
Input
Signal
Processor
Digital
LPF
Ring Trip
Threshold
Debounce
Filter
+
–
RTP
RTIP
RTIE
Interrupt
Logic
DBIRAW
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI3210M-BT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI3210M-KTR | 功能描述:射頻無線雜項(xiàng) Sgl Ch SLIC/Codec w/ MOSFET Decoder RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| SI3210MPPQ1-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3210M QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPQX-EVB | 功能描述:音頻 IC 開發(fā)工具 Si3210M QFN Eval Board RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPT1-EVB | 功能描述:音頻 IC 開發(fā)工具 U 634-3210-PPQX-EVB RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
| SI3210MPPTX-EVB | 功能描述:音頻 IC 開發(fā)工具 U 634-3210-PPQX-EVB RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評(píng)估:TAS5614L 工作電源電壓:12 V to 38 V |
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