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参数资料
| 型号： | SM320C6701GLPS14 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 数字信号处理 |
| 英文描述： | 32-BIT, 140 MHz, OTHER DSP, CBGA429 |
| 封装： | CERAMIC, BGA-429 |
| 文件页数： | 18/62页 |
| 文件大小： | 873K |
| 代理商： | SM320C6701GLPS14 |
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SMJ320C6701
FLOATINGPOINT DIGITAL SIGNAL PROCESSOR
SGUS030A – APRIL 2000 – REVISED APRIL 2001
25
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
clock PLL (continued)
Table 4. ’C6701 PLL Component Selection Table
CLKMODE
CLKIN
RANGE
(MHz)
CPU CLOCK
FREQUENCY
(CLKOUT1)
RANGE (MHz)
CLKOUT2
RANGE
(MHz)
R1
(
)
C1
(nF)
C2
(pF)
TYPICAL
LOCK TIME
(
s)
x4
12.5–41.7
50–167
25–83.5
60.4
27
560
75
Under some operating conditions, the maximum PLL lock time may vary as much as 150% from the specified typical value. For example, if the
typical lock time is specified as 100
s, the maximum value may be as long as 250 s.
Available Multiply Factors
CLKMODE1
CLKMODE0
PLL Multiply
Factors
CPU Clock
Frequency
f(CPUCLOCK)
0
x1(BYPASS)
1 x f(CLKIN)
0
1
Reserved
1
0
Reserved
1
x4
4 x f(CLKIN)
NOTES: A. Keep the lead length and the number of vias between the PLLF pin, the PLLG pin, and R1, C1, and C2 to a minimum. In addition,
place all PLL external components (R1, C1, C2, C3, C4, and the EMI Filter) as close to the ’C6000 device as possible. For the best
performance, TI recommends that all the PLL external components be on a single side of the board without jumpers, switches, or
components other than the ones shown.
B. For reduced PLL jitter, maximize the spacing between switching signals and the PLL external components (R1, C1, C2, C3, C4,
and the EMI Filter).
C. The 3.3-V supply for the EMI filter must be from the same 3.3-V power plane supplying the I/O voltage, DVDD.
Figure 5. External PLL Circuitry for Either PLL x4 Mode or x1 (Bypass) Mode
CLKMODE0
CLKMODE1
PLL
PLLV
CLKIN
LOOP FILTER
PLLCLK
PLLMULT
CLKIN
PLLG
C2
Internal to ’C6701
CPU
CLOCK
C1
R1
3.3V
10
mF
0.1
mF
PLLF
EMI
Filter
C3
C4
1
0
(see Table 3)
PLLFREQ1
PLLFREQ2
PLLFREQ3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SM320C6701GLPS16 | 制造商:Texas Instruments 功能描述:DSP,1000 MFLOPS,167MHZ,-40C/+90C,C-BGA - Trays |
| SM320C6701GLPW14 | 制造商:Texas Instruments 功能描述:DSP Floating-Point 32-Bit 140MHz 1120MIPS 429-Pin CFCBGA Tray 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:TISSM320C6701GLPW14 FLOATING POINT DSP |
| SM320C6701S14 | 制造商:TI 制造商全称:Texas Instruments 功能描述:FLOATING-POINT DIGITAL SIGNAL PROCESSOR |
| SM320C6701S16 | 制造商:TI 制造商全称:Texas Instruments 功能描述:FLOATING-POINT DIGITAL SIGNAL PROCESSOR |
| SM320C6701W14 | 制造商:TI 制造商全称:Texas Instruments 功能描述:FLOATING-POINT DIGITAL SIGNAL PROCESSOR |
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