- 您现在的位置：买卖IC网 > PDF目录378049 > PEF20571 (INFINEON TECHNOLOGIES AG) DSP Embedded Line and Port Interface Controller PDF资料下载
参数资料
| 型号： | PEF20571 |
| 厂商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | DSP Embedded Line and Port Interface Controller |
| 中文描述： | DSP嵌入式线和港口接口控制器 |
| 文件页数： | 3/8页 |
| 文件大小： | 170K |
| 代理商： | PEF20571 |
PEB 20570/PEF 20570
PEB 20571/PEF 20571
Addendum to “DELIC Clock System Synchronization”
Addendum
3/8
2003-08-04
The time within the DELIC DCXO guarantees the 100 ppm clock accuracy varies,
depending on various conditions. When the central office deactivates, the user will be
notified by the DELIC. It is up to the user to provide another clock source (for example
REFCLK) for the DCXO as soon as possible.
1.2
VIP clocked
in LT-T Mode
by an external Crystal
Figure 2
Clocking the VIP by using external Crystal
As shown in
Figure 2
no unstable system can occur by using an external crystal rather
than the DELIC Layer 1 clock as VIP clock source in LT-T mode. When the central office
line is deactivated, the VIP takes the 15.36 MHz oscillator signal and divides it by 10.
This signal is used as XCLK input of the DELIC DCXO. Since the VIP 15.36 MHz signal
is entirely independent from the DELIC clocking system no unstable system can occur.
Note: In LT-T mode it is recommended to use an external crystal to clock the VIP.
DELIC_refclk2
VIP
Central
Office
OSC
RxPLL
DCXO
/10
Mux
15.36 MHz
16.384 MHz
Divider
PD
PLL
Divider
1.536 MHz
Divider
8kHz
XCLK
REFCLK
16.384 MHz
DELIC
MUX
REFCLK
相关PDF资料 |
PDF描述 |
|---|---|
| PEF2080 | S/T Bus Interface Circuit(SBC) |
| PEF22554 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF22554E | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF22554HT | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
| PEF2256 | Ultraframer DS3/E3/DS2/E2/DS1/E1/DS0 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PEF20571FV3.1 | 功能描述:ISDN 接口 PBX RoHS:否 制造商:Texas Instruments 封装:Tube |
| PEF20571FV31XP | 制造商:Lantiq 功能描述:XWAY DELIC -LC/PB - PEF 20570/71 WIRELINE COMMUNICATION PRODUCTS |
| PEF20580FV3.1 | 制造商:Infineon Technologies AG 功能描述: |
| PEF2070-N | 制造商:未知厂家 制造商全称:未知厂家 功能描述:?ISDN Communication Controller? |
| PEF2080 | 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:S/T Bus Interface Circuit(SBC) |
发布紧急采购，3分钟左右您将得到回复。