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參數(shù)資料
| 型號： | SI3212-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)： | 39/122頁 |
| 文件大?。?/td> | 1950K |
| 代理商： | SI3212-BT |
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Si3210/Si3211/Si3212
Preliminary Rev. 1.11
39
overwritten by a new one. There is no buffering of the
digit information.
Audio Path
Unlike traditional SLICs, the codec function is integrated
into the ProSLIC. The 16-bit codec offers programmable
gain/attenuation blocks and several loop-back modes.
The signal path block diagram is shown in Figure 23.
Transmit Path
In the transmit path, the analog signal fed by the
external ac coupling capacitors is amplified by the
analog transmit amplifier, ATX, prior to the A/D
converter. The gain of the ATX is user selectable to one
of mute/–3.5/0/3.5 dB options. The main role of ATX is
to coarsely adjust the signal swing to be as close as
possible to the full-scale input of the A/D converter in
order to maximize the signal-to-noise ratio of the
transmit path. After passing through an anti-aliasing
filter, the analog signal is processed by the A/D
converter, producing an 8 kHz, 16-bit wide, linear PCM
data stream. The standard requirements for transmit
path attenuation for signals above 3.4 kHz are
implemented as part of the combined decimation filter
characteristic of the A/D converter. One more digital
filter is available in the transmit path: THPF. THPF
implements the high-pass attenuation requirements for
signals below 65 Hz. The linear PCM data stream
output from THPF is amplified by the transmit-path
programmable gain amplifier, ADCG, which can be
programmed from –
∞
dB to 6 dB. The DTMF decoder
can receive the linear PCM data stream at this point to
perform the digit extraction when enabled by the user.
The final step in the transmit path signal processing is
the user selectable A-law or
μ
-law compression which
can reduce the data stream word width to 8 bits.
Depending on the PCM_Mode register selection, every
8-bit compressed serial data word will occupy one time
slot
on
the
PCM
highway,
uncompressed serial data word will occupy two time
slots on the PCM highway.
or
every 16-bit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SI3212-KT | PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3311-H | SI3311-H |
| SI3317-H | IRED |
| SI3317-H(B) | IRED |
| Si4112G-BT* | Hook-Up Wire; Conductor Size AWG:22; No. Strands x Strand Size:7 x 30; Jacket Color:Black; Approval Bodies:UL, CSA; Approval Categories:UL AWM Style 1015, CSA Type TEW, JQA-F-, Passes VW-1 Flame Test; Conductor Material:Copper RoHS Compliant: Yes |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI3212-KT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PROSLIC PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3215 | 制造商:SILABS 制造商全稱:SILABS 功能描述:PROSLIC㈢ PROGRAMMABLE CMOS SLIC/CODEC WITH RINGING/BATTERY VOLTAGE GENERATION |
| SI3215-B-FM | 功能描述:電信線路管理 IC SINGLE CHANNEL SLIC RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| SI3215-B-FMR | 制造商:Silicon Laboratories Inc 功能描述: |
| SI3215-B-GM | 功能描述:IC SLIC/CODEC 1CH 38QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:ProSLIC® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標準包裝:750 系列:* |
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