參數(shù)資料
型號: TMX320VC5509AGHH
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: TMS320VC5509A Fixed-Point Digital Signal Processor
中文描述: TMS320VC5509A定點(diǎn)數(shù)字信號處理器
文件頁數(shù): 104/144頁
文件大?。?/td> 1603K
代理商: TMX320VC5509AGHH
Electrical Specifications
104
November 2002 Revised January 2005
SPRS205D
5.8
Reset Timings
5.8.1 Power-Up Reset (On-Chip Oscillator Active)
Table 511 assumes testing over recommended operating conditions (see Figure 515).
Table 511. Power-Up Reset (On-Chip Oscillator Active) Timing Requirements
NO.
CV
DD
= 1.2 V
CV
DD
= 1.35 V
MIN
3P
CV
DD
= 1.6 V
UNIT
MAX
MIN
3P
MAX
R1
t
h(SUPSTBL-RSTL)
Hold time, RESET low after oscillator stable
ns
Oscillator stable time depends on the crystal characteristic (i.e., frequency, ESR, etc.) which varies from one crystal manufacturer to another.
Based on the crystal characteristics, the oscillator stable time can be in the range of a few to 10s of ms. A reset circuit with 100 ms or more delay
time will ensure the oscillator stabilized before the RESET goes high.
P = 1/(input clock frequency) in ns. For example, when input clock is 12 MHz, P = 83.33 ns.
R1
CLKOUT
CV
DD
DV
DD
RESET
Figure 515. Power-Up Reset (On-Chip Oscillator Active) Timings
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