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參數(shù)資料
| 型號： | SI3068-B-FS |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 5/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC FCC+ EMBEDDED DAA 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 96 |
| 功能： | 直接存取裝置（DAA） |
| 電路數(shù)： | 1 |
| 電流 - 電源： | * |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm Width）裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC-EP |
| 包裝： | 管件 |
| 包括： | 結(jié)帳音調(diào)檢測，線路電壓監(jiān)視器，回路電流監(jiān)視器，過載檢測，振鈴檢測器 |
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Si3068
Rev. 1.0
13
4.6. Off-Hook
The software generates an off-hook command by
setting the OH bit (Register 5, bit 0). This seizes the line
for incoming/outgoing calls and can also be used for
pulse dialing. When on-hook, negligible dc current flows
through the hookswitch. When off-hook, the hookswitch
transistor pair, Q1 and Q2, turn on. A termination
impedance is applied across TIP and RING and causes
dc loop current to flow.
Several events occur internally to the DAA when the OH
bit is set. There is a 250 s latency for the off-hook
command to communicate to the line-side device. When
the line-side device goes off-hook, an off-hook counter
forces a delay before transmission or reception can
occur. After this, an ADC calibration is performed for
256 ms. The ADC calibration can be disabled by setting
the ADCC bit (Register 17, bit 5). Refer to Section "4.20.
Calibration" on page 16 for more information on
automatic calibration. To calculate the total time
required to go off-hook and start transmission or
reception, the digital filter delay (typically 1.5 ms with
the FIR filter) should be included in the calculation.
4.7. DC Termination
The Si3068 dc I/V characteristics, shown in Figure 8,
support a transmit full scale level of –1 dBm at TIP and
RING. This meets FCC requirements and the
requirements of many other countries.
Figure 8. DC I/V Characteristics
DCIV
0
5
10
15
20
25
0
20
40
60
80
100
120
Loop Current (mA)
V
tip
-r
in
g
(V
o
lts)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SI3068-B-FSR | 功能描述:電信線路管理 IC Enhanced V.92 FCC+ Line-Side processors 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 |
| SI3068-B-FT | 功能描述:IC DAA FCC+ EMBEDDED 10SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 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(biāo)準(zhǔn)包裝:750 系列:* |
| SI3068-B-FTR | 制造商:Silicon Laboratories Inc 功能描述:ENHANCED V.92 FCC+ LINE-SIDE F 制造商:Silicon Laboratories Inc 功能描述:ENHANCED V.92 FCC+ LINE-SIDE FOR PROCESSORS - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC DAA FCC+ EMBEDDED 10SOIC |
| SI3069-A-FT | 功能描述:IC DAA FCC+ EMBEDDED 10SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:* 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(biāo)準(zhǔn)包裝:750 系列:* |
| SI3069-A-FTR | 制造商:Silicon Laboratories Inc 功能描述:ENHANCED V.92 GLOBAL LINE-SIDE FOR PROCESSORS - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC DAA FCC+ EMBEDDED 10SOIC |
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