参数资料
型号: SM320C6414DGADW60
厂商: TEXAS INSTRUMENTS INC
元件分类: 数字信号处理
英文描述: 64-BIT, 75 MHz, OTHER DSP, CPGA570
封装: 33 X 33 MM, CERAMIC, FCPGA-570
文件页数: 101/134页
文件大小: 1997K
代理商: SM320C6414DGADW60
SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A JANUARY 2004 REVISED MARCH 2004
69
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
clock PLL (continued)
Table 32. SMJ320C64x PLL Multiply Factor Options, Clock Frequency Ranges, and Typical Lock Time
GAD PACKAGE Micro Pin PGA
CLKMODE1
CLKMODE0
CLKMODE
(PLL MULTIPLY
FACTORS)
CLKIN
RANGE
(MHz)
CPU CLOCK
FREQUENCY
RANGE (MHz)
CLKOUT4
RANGE (MHz)
CLKOUT6
RANGE (MHz)
TYPICAL
LOCK TIME
(
s)§
0
Bypass (x1)
3075
7.518.8
512.5
N/A
0
1
x6
3075
180450
45112.5
3075
75
1
0
x12
3060
360720
90180
60120
75
1
Reserved
These clock frequency range values are applicable to a C64x60 speed device..
Use external pullup resistors on the CLKMODE pins (CLKMODE1 and CLKMODE0) to set the C64x device to one of the valid PLL multiply clock
modes (x6 or x12). With internal pulldown resistors on the CLKMODE pins (CLKMODE1, CLKMODE0), the default clock mode is x1 (bypass).
§ Under some operating conditions, the maximum PLL lock time may vary by 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.
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