ADSP-BF504BCPZ-4 Analog Devices Inc, ADSP-BF504BCPZ-4 Datasheet - Page 46

• Manufacturer Part Number: ADSP-BF504BCPZ-4
• Description: Low Cost Blackfin Wtih Processor Only
• Manufacturer: Analog Devices Inc
• Series: Blackfin®r
• Type: Fixed Pointr

Specifications of ADSP-BF504BCPZ-4

• Interface: CAN, EBI/EMI, I²C, IrDA, PPI, SPI, SPORT, UART/USART
• Clock Rate: 400MHz
• Non-volatile Memory: External
• On-chip Ram: 68kB
• Voltage - I/o: 1.8V, 2.5V, 3.3V
• Voltage - Core: 1.29V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: *
• Package / Case: *
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADSP-BF504/ADSP-BF504F/ADSP-BF506F
Pulse Width Modulator (PWM) Timing
Table 40
Table 40. PWM Timing
1
2
Parameter
Timing Requirements
t
Switching Characteristics
t
t
t
PWM outputs are: PWMx_AH, PWMx_AL, PWMx_BH, PWMx_BL, PWMx_CH, and PWMx_CL.
When the external sync signal is synchronous to the peripheral clock, it takes fewer clock cycles for the output to appear compared to when the external sync signal is
ES
DODIS
DOE
OD
asynchronous to the peripheral clock. For more information, see the ADSP-BF50x Blackfin Processor Hardware Reference.
and
External Sync Pulse Width
Output
Output
Output
Figure 29
PWMx_SYNC
1
1
1
(AS INPUT)
Inactive (OFF) After Trip Input
Delay After External Sync
Delay After Falling Edge of CLKOUT
CLKOUT
OUTPUT
describe PWM operations.
t
ES
2
Rev. 0 | Page 46 of 80 | December 2010
t
DOE
Figure 29. PWM Timing
t
OD
Min
2 × t
2 × t
SCLK
SCLK
+ 1
t
DODIS
Max
12
5 × t
5
SCLK
+ 13
Unit
ns
ns
ns
ns