Do I really need fancy power sequencing ICs to power C6xxx circuits?
Started by ●March 26, 2005
Hi all!
I'm constructing a C6xxx-based circuit for which low-cost is the top
priority. (still debating between the $9.66 C6204 and the $20 C6410
for the DSP...)
Looking into my stack of Spectrum Digital reference designs, TI DSPs
are typically booted up with fancy power sequencing chips...
(Which, by uncanny coincidence, usually turn up to be TI parts! ;-)
Q1: Are those *really* necessary?
Q2: Can I just use cheap LDOs instead?
Q3: Are you familiar with inexpensive power chips that can supply
all power rails?
Q4: Any suggestions on how I can reduce power-circuitry to its
*absolute minimum* (e.g. referral to low-cost power IC suppliers)?
Thanks for sharing your valuable experience and insights!
Jean-Pierre
