- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄69024 > MC13214R2 (FREESCALE SEMICONDUCTOR INC) SPECIALTY MICROPROCESSOR CIRCUIT, BGA71 PDF資料下載
參數(shù)資料
| 型號： | MC13214R2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, BGA71 |
| 封裝： | 9 X 9 MM, 1 MM HEIGHT, ROHS COMPLIANT, LGA-71 |
| 文件頁數(shù)： | 61/70頁 |
| 文件大?。?/td> | 802K |
| 代理商： | MC13214R2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁當(dāng)前第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁
MC13211/212/213/214 Technical Data, Rev. 0.0,
64
Freescale Semiconductor
The on-chip trim capability may be used to determine the closest standard value by adjusting the trim value
via the SPI and observing the frequency at CLKO. Each internal trim load capacitor has a trim range of
approximately 5 pF in 20 fF steps.
Initial tolerance for the internal trim capacitance is approximately ±15%.
Since the MC1321x contains an on-chip reference frequency trim capability, it is possible to trim out
virtually all of the initial tolerance factors and put the frequency within 0.12 ppm on a board-by-board
basis. Individual trimming of each board in a production environment allows use of the lowest cost crystal,
but requires that each board go through a trimming procedure. This step can be avoided by
using/specifying a crystal with a tighter stability tolerance, but the crystal will be slightly higher in cost.
A tolerance analysis budget may be created using all the previously stated factors. It is an engineering
judgment whether the worst case tolerance will assume that all factors will vary in the same direction or if
the various factors can be statistically rationalized using RSS (Root-Sum-Square) analysis. The aging
factor is usually specified in ppm/year and the product designer can determine how many years are to be
assumed for the product lifetime. Taking all of the factors into account, the product designer can determine
the needed specifications for the crystal and external load capacitors to meet the IEEE 802.15.4
specification.
Figure 34. MC1321x Modem Crystal Circuit
7.1.2
Suggested Crystals
Three suggested crystal types are shown in Table 21, Table 22, and Table 23. These variations are given
because the crystals have different trade-offs between cost and usage.
Table 21. Daishinku KDS - DSX321G ZD00882 Crystal Specifications 1,2
Parameter
Value
Unit
Condition
Type
DSX321G
surface mount
Frequency
16
MHz
Frequency tolerance
± 20
ppm
at 25 °C ± 3 °C
Equivalent series resistance
100
max
Y1
16MHz
C10
6.8pF
C11
6.8pF
Y1 = Daishinku KDS - DSX321G ZD00882
XTAL1
27
XTAL2
28
U3
MC1321x
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC13224VR2 | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99 |
| MC13226V | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99 |
| MC13226VR2 | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99 |
| MC13224V | SPECIALTY MICROPROCESSOR CIRCUIT, PBGA99 |
| MC141556P1 | UNIVERSAL SERIAL BUS CONTROLLER, PDIP28 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC1321X | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述: |
| MC1321X_09 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:ZigBee?- Compliant Platform - 2.4 GHz Low Power Transceiver for the IEEE? 802.15.4 Standard plus Microcontroller |
| MC13224V | 功能描述:射頻收發(fā)器 PIP 802.15.4 2.4G IND RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| MC13224V | 制造商:Freescale Semiconductor 功能描述:; Controller Family/Series:(ARM7); Memor |
| MC13224V_09 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Advanced ZigBee?- Compliant Platform-in-Package (PiP) for the 2.4 GHz IEEE? 802.15.4 Standard |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。