Datasheet

ADSP-21477/ADSP-21478/ADSP-21479
Rev. C | Page 51 of 76 | July 2013
Pulse-Width Modulation Generators (PWM)
The following timing specifications apply when the
ADDR23–8/DPI_14–1 pins are configured as PWM.
Table 43. Pulse-Width Modulation (PWM) Timing
88-Lead LFCSP Package All Other Packages
Unit
Parameter Min Max Min Max
Switching Characteristics
t
PWMW
PWM Output Pulse Width t
PCLK
– 2 (2
16
– 2) × t
PCLK
t
PCLK
– 2 (2
16
– 2) × t
PCLK
ns
t
PWMP
PWM Output Period 2 × t
PCLK
– 2 (2
16
– 1) × t
PCLK
2 × t
PCLK
– 1.5 (2
16
– 1) × t
PCLK
ns
Figure 30. PWM Timing
PWM
OUTPUTS
t
PWMW
t
PWMP