SM320C6414-EP_16 Datasheet, PDF (45/93 Pages) Texas Instruments – FIXED-POINT DIGITAL SIGNAL PROCESSORS

www.ti.com
SM320C6414-EP, SM320C6415-EP, SM320C6416-EP
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SGUS043D – MAY 2003 – REVISED SEPTEMBER 2008
The TMS320C64x Technical Overview (SPRU395) gives an introduction to the C64xE digital signal
processor, and discusses the application areas that are enhanced by the C64xE DSP VelociTI.2E VLIW
architecture.
The TMS320C6414, TMS320C6415, and TMS320C6416 Digital Signal Processors Silicon Errata
(SPRZ011) describes the known exceptions to the functional specifications for the TMS320C6414,
TMS320C6415, and TMS320C6416 devices
The tools support documentation is electronically available within the Code Composer StudioE Integrated
Development Environment (IDE). For a complete listing of C6000E DSP latest documentation, visit the
Texas Instruments web site on the Worldwide Web at http://www.ti.com uniform resource locator (URL).
See the worldwide web URL for the How to Begin Development Today With the TMS320C6414,
TMS320C6415, and TMS320C6416 DSPs application report (SPRA718), which describes in more details
the compatibility and similarities/differences among the C6414, C6415, C6416, and C6211 devices.
3.1.2 Clock PLL
Most of the internal C64x DSP clocks are generated from a single source through the CLKIN pin. This
source clock either drives the PLL, which multiplies the source clock frequency to generate the internal
CPU clock, or bypasses the PLL to become the internal CPU clock.
To use the PLL to generate the CPU clock, the external PLL filter circuit must be properly designed.
Figure 5 shows the external PLL circuitry for either x1 (PLL bypass) or other PLL multiply modes.
To minimize the clock jitter, a single clean power supply should power both the C64x DSP device and the
external clock oscillator circuit. The minimum CLKIN rise and fall times should also be observed. For the
input clock timing requirements, see the input and output clocks electrical section.
Rise/fall times, duty cycles (high/low pulse durations), and the load capacitance of the external clock
source must meet the DSP requirements in this data sheet (see the electrical characteristics over
recommended ranges of supply voltage and operating case temperature table and the input and output
clocks electrical section). Table 3-1 lists some examples of compatible CLKIN external clock sources.
Table 3-1. Compatible CLKIN External Clock Sources
COMPATIBLE PARTS FOR
EXTERNAL CLOCK SOURCES (CLKIN)
Oscillators
PLL
PART NUMBER
JITO-2
STA series, ST4100 series
SG-636
342
ICS525-02
MANUFACTURER
Fox Electronix
SaRonix Corporation
Epson America
Corning Frequency Control
Integrated Circuit Systems
Submit Documentation Feedback
Development Support
45