參數(shù)資料
型號(hào)： CPS1027-J
英文描述： Telecommunication IC
中文描述： 通信集成電路
文件頁(yè)數(shù)： 38/64頁(yè)
文件大小： 870K
代理商： CPS1027-J
CSP1027 Voice Band Codec for
Cellular Handset and Modem Applications
Data Sheet
January 2002
Agere Systems Inc.
38
7 Application Information
(continued)
7.4 Crystal Oscillator
If the option for using the external crystal is chosen, the following electrical characteristics and requirements apply.
7.4.1 External Components
The crystal oscillator is enabled by connecting a crystal across XLO and XHI, along with one external capacitor
from each of these pins to ground (see Figure 30). For most applications, 10 pF external capacitors are recom-
mended; however, larger values may be necessary if precise frequency tolerance is required (see Section 7.4.5 on
page 43). The crystal should be either fundamental or overtone mode, be parallel resonant, have a power dissipa-
tion of at least 1 mW, and be specified at a load capacitance equal to the total capacitance seen by the crystal
(including external capacitors and strays). The series resistance of the crystal should be specified to be less than
half
the absolute value of the negative resistance shown in Figures 31 or 32 on page 39 for the crystal frequency.
The frequency of the internal clock will be equal to the crystal frequency.
Figure 30. Fundamental Crystal Configuration
7.4.2 Power Dissipation
Figures 33 and 34 on page 40 indicate the typical power dissipation of the on-chip crystal oscillator circuit versus
frequency.
XLO
XHI
XTAL
C
1
C
2
5-7609 (F)
相關(guān)PDF資料
PDF描述
CPS1027-S Telecommunication IC
CPS1087 Analog IC
CPU16RM M68HC16 Family CPU16 Reference Manual
CQ202-4M 4.0 AMP TRIAC 600 THRU 800 VOLTS
CQ202-4B TRIAC|200V V(DRM)|4A I(T)RMS|TO-202
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CPS1027-S 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC
CPS1033A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
CPS1036A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
CPS1037A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
CPS1038A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

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

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

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*