參數(shù)資料
型號: TMS32C5402PGER10G4
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSOR
中文描述: 定點(diǎn)數(shù)字信號處理器
文件頁數(shù): 36/68頁
文件大?。?/td> 948K
代理商: TMS32C5402PGER10G4
SPRS079E – OCTOBER 1998 – REVISED AUGUST 2000
36
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
internal oscillator with external crystal
The internal oscillator is enabled by connecting a crystal across X1 and X2/CLKIN. The frequency of CLKOUT
is a multiple of the oscillator frequency. The multiply ratio is determined by the bit settings in the CLKMD register.
The crystal should be in fundamental-mode operation, and parallel resonant, with an effective series resistance
of 30
and power dissipation of 1 mW.
The connection of the required circuit, consisting of the crystal and two load capacitors, is shown in Figure 10.
The load capacitors, C
1
and C
2
, should be chosen such that the equation below is satisfied. C
L
in the equation
is the load specified for the crystal.
C
L
C
1
C
2
(C
1
C
2
)
recommended operating conditions of internal oscillator with external crystal (see Figure 10)
MIN
MAX
UNIT
fclock
Input clock frequency
10
20
MHz
X1
X2/CLKIN
C1
C2
Crystal
Figure 10. Internal Oscillator With External Crystal
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