Datasheet

TMS320LF2407A, TMS320LF2406A, TMS320LF2403A, TMS320LF2402A
TMS320LC2406A, TMS320LC2404A, TMS320LC2403A, TMS320LC2402A
DSP CONTROLLERS
SPRS145L − JULY 2000 − REVISED SEPTEMBER 2007
76
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443
current consumption graphs
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45
CLKOUT Frequency (MHz)
Current (mA)
I
DD
Figure 21. LF2407A Typical Current Consumption (With Peripheral Clocks Enabled)
0
10
20
30
40
50
60
70
80
90
100
0 5 10 15 20 25 30 35 40 45
CLKOUT Frequency (MHz)
Current (mA)
I
DD
Figure 22. LC2406A Typical Current Consumption (With Peripheral Clocks Enabled)
Figure 23 shows the connection between the DSP and JTAG header for a single-processor configuration. If the
distance between the JTAG header and the DSP is greater than 6 inches, the emulation signals must be
buffered. If the distance is less than 6 inches, buffering is typically not needed. Figure 23 shows the simpler,
no-buffering situation. For the pullup/pulldown resistor values, see the pin description section. For details on
buffering JTAG signals and multiple processor connections, see TMS320F/C24x DSP Controllers CPU and
Instruction Set Reference Guide (literature number SPRU160).