參數(shù)資料
      型號: TMX320C6413GTS500
      廠商: Texas Instruments, Inc.
      元件分類: 數(shù)字信號處理
      英文描述: Fixed-Point Digital Signal Processors
      中文描述: 定點數(shù)字信號處理器
      文件頁數(shù): 74/140頁
      文件大?。?/td> 1958K
      代理商: TMX320C6413GTS500
      Clock PLL and Oscillator
      74
      April 2004
      Revised May 2005
      SPRS247E
      Table 4
      2. TMS320C6410 PLL Multiply Factor Options, Clock Frequency Ranges,
      and Typical Lock Time for
      400 Devices
      GTS and ZTS PACKAGES
      23 x 23 mm BGA
      CLKMODE[3:0]
      CLKMODE
      (PLL MULTIPLY FACTORS)
      CLKIN
      RANGE
      (MHz)
      CPU CLOCK
      FREQUENCY
      RANGE
      (MHz)
      12
      100
      140
      400
      140
      400
      140
      400
      140
      400
      140
      400
      140
      400
      140
      400
      144
      400
      192
      400
      216
      400
      228
      400
      240
      400
      252
      400
      264
      400
      288
      400
      OSCIN
      RANGE
      (MHz)
      CPU CLOCK
      FREQUENCY
      RANGE
      (MHz)
      12
      30
      140
      150
      140
      180
      140
      210
      140
      240
      140
      270
      140
      300
      140
      330
      144
      360
      192
      400
      216
      400
      228
      400
      240
      400
      252
      400
      264
      400
      288
      400
      TYPICAL
      LOCK TIME
      (
      μ
      s)
      0
      0
      0
      0
      0
      0
      0
      0
      1
      1
      1
      1
      1
      1
      1
      1
      0
      0
      0
      0
      1
      1
      1
      1
      0
      0
      0
      0
      1
      1
      1
      1
      0
      0
      1
      1
      0
      0
      1
      1
      0
      0
      1
      1
      0
      0
      1
      1
      0
      1
      0
      1
      0
      1
      0
      1
      0
      1
      0
      1
      0
      1
      0
      1
      Bypass (x1)
      x5
      x6
      x7
      x8
      x9
      x10
      x11
      x12
      x16
      x18
      x19
      x20
      x21
      x22
      x24
      12
      100
      28
      80
      23
      67
      20
      57
      17
      50
      15
      44
      14
      40
      12
      36
      12
      33
      12
      25
      12
      22
      12
      21
      12
      20
      12
      19
      12
      18
      12
      17
      12
      30
      28
      30
      23
      30
      20
      30
      17
      30
      15
      30
      14
      30
      12
      30
      12
      30
      12
      25
      12
      22
      12
      21
      12
      20
      12
      19
      12
      18
      12
      17
      N/A
      75
      Use external pullup resistors on the CLKMODE pins (CLKMODE1 and CLKMODE0) to set the C6413/C6410 device to one of the valid PLL
      multiply clock modes (x5, x6, x7, x8, x9, x10, x11, x12, x16, x18, x19, x20, x21, x22, or x24). With internal pulldown resistors on the CLKMODE
      pins (CLKMODE3, CLKMODE2, 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
      μ
      s, the maximum value may be as long as 250
      μ
      s.
      For the lowest jitter on the oscillator circuit, it is recommended that a pair of 470-pF capacitors be connected
      between isolated (not directly connected to the board supply) OSCV
      DD
      and OSCV
      SS
      pins. This helps to cancel
      out switching noise from other circuits on the DSP device.
      Table 4
      3 shows a recommended crystal and tank circuit values for the C6413/C6410 PLL circuitry.
      Table 4
      3. Crystal and Tank Circuit Recommendations
      Components
      RECOMMENDED PART NUMBERS or VALUES
      MANUFACTURER
      24 576 MHz
      24.576 MHz
      1AS245766AHA (SMD-49)
      1AF245766AAA (AT-49)
      1AS225796AG (SMD-49)
      1AF225796A (AT-49)
      1 M
      0
      Crystal
      KDS
      Diashinku Corp.
      22 5792 MHz
      22.5792 MHz
      R
      B
      R
      S
      C7
      C8
      8 pF
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