- 您现在的位置：买卖IC网 > PDF目录10988 > SI3216M-B-GM (Silicon Laboratories Inc)IC SLIC/CODEC 1CH 38QFN PDF资料下载
参数资料
| 型号： | SI3216M-B-GM |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 54/122页 |
| 文件大小： | 0K |
| 描述： | IC SLIC/CODEC 1CH 38QFN |
| 标准包装： | 43 |
| 系列： | ProSLIC® |
| 功能： | 用户线路接口概念（SLIC），CODEC |
| 接口： | GCI，PCM，SPI |
| 电路数： | 1 |
| 电源电压： | 3.13 V ~ 5.25 V |
| 电流 - 电源： | 88mA |
| 功率（瓦特）： | 700mW |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 38-VFQFN 裸露焊盘 |
| 供应商设备封装： | 38-QFN（5x7） |
| 包装： | 管件 |
| 包括： | 音频音调生成，BORSCHT 功能，FSK 生成，振铃和电池电压生成 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页当前第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页
Si3216
Rev. 1.0
37
Not
Recommended
fo
r N
ew
D
esi
gn
s
2.3.2. Oscillator Frequency and Amplitude
Each of the two-tone generators contains a two-pole
resonant
oscillator
circuit
with
a
programmable
frequency and amplitude. These two-tone generators
are programmed via indirect registers OSC1, OSC1X,
OSC1Y, OSC2, OSC2X, and OSC2Y. The sample rate
for the two oscillators is 16 kHz. The equations are as
follows:
coeffn =cos(2fn/16 kHz),
where fn is the frequency to be generated;
OSCn = coeffn x(2
15);
where desired Vrms is the amplitude to be generated;
OSCnY = 0,
n = 1 or 2 for oscillator 1 or oscillator 2, respectively.
For example, to generate a DTMF digit of 8, the two
required tones are 852 Hz and 1336 Hz. Assuming the
generation of half-scale values (ignoring twist) is
desired, the following values are calculated:
OSC1Y = 0
OSC2 = 0.86550 (215) = 28361 = 6EC8h
OSC2Y = 0
The above computed values are written to the
corresponding registers to initialize the oscillators. Once
the oscillators are initialized, the oscillator control
registers can be accessed to enable the oscillators and
direct their outputs.
2.3.3. Tone Generator Cadence Programming
Each of the two-tone generators contains two timers,
one for setting the active period and one for setting the
inactive period. The oscillator signal is generated during
the active period and suspended during the inactive
period. Both the active and inactive periods can be
programmed from 0 to 8 seconds in 125 s steps. The
active period time interval is set using OAT1 (direct
registers 36 and 37) for tone generator 1 and OAT2
(direct registers 40 and 41) for tone generator 2.
To enable automatic cadence for tone generator 1,
define the OAT1 and OIT1 registers and then set the
O1TAE bit (direct Register 32, bit 4) and O1TIE bit
(direct Register 32, bit 3). This enables each of the
timers to control the state of the Oscillator Enable bit,
O1E (direct Register 32, bit 2). The 16-bit counter
begins counting until the active timer expires, at which
time the 16-bit counter resets to zero and begins
counting until the inactive timer expires. The cadence
continues until the user clears the O1TAE and O1TIE
control bits. The zero crossing detect feature can be
implemented by setting the OZ1 bit (direct Register 32,
bit 5). This ensures that each oscillator pulse ends
without a dc component. The timing diagram in
Figure 21 is an example of an output cadence using the
zero crossing feature.
One-shot oscillation can be achieved by enabling O1E
and O1TAE. Direct control over the cadence can be
achieved by controlling the O1E bit (direct Register 32,
bit 2) directly if O1TAE and O1TIE are disabled.
The operation of tone generator 2 is identical to that of
tone generator 1 using its respective control registers.
Note: Tone Generator 2 should not be enabled simultane-
ously with the ringing oscillator due to resource sharing
within the hardware.
Continuous
phase
frequency-shift
keying
(FSK)
waveforms may be created using tone generator 1 (not
available on tone generator 2) by setting the REL bit
(direct Register 32, bit 6), which enables reloading of
the OSC1, OSC1X, and OSC1Y registers at the
expiration of the active timer (OAT1).
OSCnX
1
4
---
1
coeff
–
1
coeff
+
------------------------
2
15
1
–
Desired V
rms
1.11 V
rms
-------------------------------------
=
coeff
1
2
852
16000
-----------------
cos
0.94455
==
OSC1
0.94455 2
15
30951
78E6h
==
=
OSC1X
1
4
---
.05545
1.94455
---------------------
2
15
1
–
0.5
692
2B3h
=
coeff
2
1336
16000
--------------------
cos
0.86550
==
OSC2X
1
4
---
0.13450
1.86550
---------------------
2
15
1
–
0.5
1098
44Bh
=
相关PDF资料 |
PDF描述 |
|---|---|
| SI3216M-B-FM | IC SLIC/CODEC 1CH 38QFN |
| VI-B0N-IY-F2 | CONVERTER MOD DC/DC 18.5V 50W |
| VI-B0N-IY-F1 | CONVERTER MOD DC/DC 18.5V 50W |
| VI-B0L-IY-F4 | CONVERTER MOD DC/DC 28V 50W |
| VI-B0L-IY-F2 | CONVERTER MOD DC/DC 28V 50W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SI3216M-BT | 功能描述:IC SLIC/CODEC 1CH 38TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 电信 系列:ProSLIC® 产品培训模块:Lead (SnPb) Finish for COTS 产品变化通告:Product Discontinuation 06/Feb/2012 标准包装:750 系列:* |
| SI3216M-C-FM | 功能描述:电信线路管理 IC Single-Channel Wide- band SLIC/Codec RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| SI3216M-C-FMR | 功能描述:电信线路管理 IC SnglCH WB SLIC/Codec Transformer dc-dc RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| SI3216M-C-GM | 功能描述:电信线路管理 IC Single-Channel Wide- band SLIC/Codec RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| SI3216M-C-GMR | 功能描述:电信线路管理 IC SnglCH WB SLIC/Codec Transformer dc-dc RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。