Figure 17. Ground Start VRING
參數(shù)資料
型號(hào)： SI3200-G-FSR
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 44/112頁(yè)
文件大小： 0K
描述： IC SLIC/CODEC 100V LINE 16SOIC
標(biāo)準(zhǔn)包裝： 2,500
系列： ProSLIC®
功能： 用戶線路接口概念（SLIC），CODEC
接口： GCI，PCM，SPI
電路數(shù)： 2
電源電壓： 3.3V，5V
電流 - 電源： 110µA
功率（瓦特）： 941mW
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.154"，3.90mm Width）裸露焊盤
供應(yīng)商設(shè)備封裝： 16-SOIC N
包裝： 帶卷 (TR)
包括： 電池切換，BORSCHT 功能，DTMF 生成和解碼，F(xiàn)SK 音調(diào)生成，調(diào)制解調(diào)器和傳真音調(diào)檢測(cè)
Si3220/25 Si3200/02
Rev. 1.3
37
Not
fo
r N
ew
D
esi
gn
s
Figure 17. Ground Start VRING/IRING Behavior
3.6. Linefeed Calibration
An internal calibration algorithm corrects for internal and
external component errors. The calibration is initiated by
setting the CAL register bit. This bit automatically resets
upon completion of the calibration cycle.
A calibration should be executed following system
powerup. Upon release of the chip reset, the chipset will
be in the open state, and calibration may be initiated.
Only one calibration should be necessary if the system
remains powered up.
To optimize Dual ProSLIC performance, the calibration
routine in “AN58: Si3220/Si3225 Programmer’s Guide”
should be followed.
3.7. Loop Voltage and Current Monitoring
The Dual ProSLIC chipset continuously monitors the
TIP and RING voltages and currents. These values are
available in registers. An internal 8-bit A/D converter
samples the measured voltages and currents from the
analog sense circuitry and translates them into the
digital domain. The A/D updates the samples at an
800 Hz rate for all inputs except VRNGNG and
IRNGNG, which are sampled at 8 kHz to provide higher
resolution for zero-crossing detection in external ringing
applications. Two derived values, the loop voltage
(VTIP –VRING) and the loop current are also reported.
For ground start operation, the values reported are
VRING and the current flowing in the RING lead.
Table 21 lists the register set associated with the loop
monitoring functions.
The Dual ProSLIC chipsets also include the ability to
perform loop diagnostic functions as outlined in "3.32.2.
3.8. Power Monitoring and Power Fault
Detection
The Dual ProSLIC line monitoring functions can be
used to protect the high-voltage circuitry against
excessive power dissipation and thermal overload
conditions. The Dual ProSLIC devices can prevent
thermal overloads by regulating the total power inside
the Si3200/2 or in each of the external bipolar
transistors (if using a discrete linefeed circuit). The DSP
engine performs all power calculations and provides the
ability to automatically transition the device into the
OPEN state and generate a power alarm interrupt when
excessive power is detected. Table 22 on page 41
describes the register and RAM locations used for
power monitoring.
0 mA
-48 V
-80 V
-40 V
-20 V
-0 V
24 mA
VOCLTH
VOCHTH
640
320
VOC DELTA
I
LI
M =
24
mA
IRING
VRING
相關(guān)PDF資料
PDF描述
SI3201-FS IC LINEFEED INTRFC SI321X 16SOIC
VI-BNY-IY-B1 CONVERTER MOD DC/DC 3.3V 33W
VI-27J-IY-F3 CONVERTER MOD DC/DC 36V 50W
VI-27R-IY-F4 CONVERTER MOD DC/DC 7.5V 50W
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Si3200-G-GS 功能描述:射頻無(wú)線雜項(xiàng) 100 V Linefeed Inter IC unit price 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
SI3200-G-GSR 功能描述:電信線路管理 IC 100 V Linefeed Interface 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
SI3200-GS 功能描述:射頻無(wú)線雜項(xiàng) 100 V Linefeed codec 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
SI3200-GSR 制造商:Silicon Laboratories Inc 功能描述:
Si3200-KS 功能描述:電信線路管理 IC 100 V LINEFEED INTERFACE IC.CHIPSET 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
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