參數(shù)資料
型號： SI3220-G-FQR
廠商： Silicon Laboratories Inc
文件頁數(shù)： 71/112頁
文件大?。?/td> 0K
描述： IC PROSLIC/CODEC DUAL 64TQFP
標(biāo)準(zhǔn)包裝： 1,250
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： 65mA
功率（瓦特）： 941mW
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 64-TQFP
供應(yīng)商設(shè)備封裝： 64-TQFP（10x10）
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
Si3220/25 Si3200/02
Rev. 1.3
61
Not
Recommended
fo
r N
ew
D
esi
gn
s
Setting the linefeed register to the opposite polarity
immediately reverses (hard reversal) the line polarity.
For example, to transition from Forward Active mode to
Reverse Active mode changes LF[2:0] from 001 to 101.
Polarity reversal is accommodated in the OHT and
ground start modes. The POLREV bit is a read-only bit
that reflects if the device is in polarity reversal mode.
For smooth polarity reversal, set the PREN bit to 1 and
the RAMP bit to 0 or 1 depending on the desired ramp
rate
(see
Polarity
reversal
is
then
accomplished by toggling the linefeed register from
forward to reverse modes as desired.
A wink function slowly ramps down the TIP-RING
voltage (VOC) to 1 followed by a return to the original
VOC value (set in the VOC RAM location). This scheme
lights a message-waiting lamp in certain handsets. No
change to the linefeed register is necessary to enable
this function. Instead, the user sets the VOCZERO bit to
1 so that the TIP-RING voltage collapses to 0 V at the
rate programmed by the RAMP bit. Setting the
VOCZERO bit back to 0 returns the TIP-RING voltage
to its normal setting. With a software timer, the user can
automate the cadence of the wink function. Figure 32
illustrates the wink function.
Figure 32. Wink Function with Programmable Ramp Rate
Table 33. Register and RAM Locations used for Polarity Reversal
Parameter
Programmable Range
Register/RAM
Bits
Register/RAM
Mnemonic
Linefeed
LF[2:0]
LINEFEED
Polarity Reversal Status
Read only
POLREV
Wink Function
(Smooth transition to Voc=0V)
1 = Ramp to 0 V
0 = Return to previous VOC
VOCZERO
POLREV
Smooth Polarity Reversal Enable
0 = Disabled
1 = Enabled
PREN
POLREV
Smooth Polarity Reversal Ramp
Rate
0=1V/125 s
1=2V/125 s
RAMP
POLREV
V
TIP/RING (V)
0
-10
-20
-30
-40
-50
Time (ms)
50
40
30
20
10
60
70
80
0
2 V/125 s slope
set by RAMP bit
Set VOCZERO bit to 1
Set VOCZERO bit to 0
V
cm
V
ov
V
oc
V
TIP
V
BAT
V
RING
相關(guān)PDF資料
PDF描述
VI-2TN-IY-F2 CONVERTER MOD DC/DC 18.5V 50W
VI-2TM-IY-F3 CONVERTER MOD DC/DC 10V 50W
SI3232-G-FQ IC SLIC PROG DUAL-CH 64TQFP
VI-2NK-IY-B1 CONVERTER MOD DC/DC 40V 50W
VI-2TK-IY-F1 CONVERTER MOD DC/DC 40V 50W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Si3220-G-GQ 功能描述:電信線路管理 IC Dual-Channel SLIC codec 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
SI3220-G-GQR 功能描述:電信線路管理 IC Dual-CH SLIC/codec Internal 65 Vrms 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
Si3220-GQ 功能描述:電信線路管理 IC Dual-Channel SLIC/ codec 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
SI3220-GQR 制造商:Silicon Laboratories Inc 功能描述:
SI3220KIT4-EVB 制造商:Silicon Laboratories Inc 功能描述:EVAL BOARD - Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報(bào)價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*