MCIMX285AJM4A Freescale Semiconductor, MCIMX285AJM4A Datasheet - Page 51

• Manufacturer Part Number: MCIMX285AJM4A
• Description: Processors - Application Specialized CATSKILLS REV 1.1
• Manufacturer: Freescale Semiconductor
• Type: Multimedia Applicationsr

Specifications of MCIMX285AJM4A

• Product Category: Processors - Application Specialized
• Core: ARM926EJ-S
• Processor Series: i.MX28
• Data Bus Width: 32 bit
• Data Ram Size: 128 KB
• Operating Supply Voltage: 1.35 V to 5.25 V
• Maximum Operating Temperature: + 85 C
• Memory Type: L1 Cache, ROM, SRAM

3.5.13
SPDIF data is sent using bi-phase marking code. When encoding, the SPDIF data signal is modulated by
a clock that is twice the bit rate of the data signal.
The following
(spdif_clk) in SPDIF transmitter as shown in the
Freescale Semiconductor
SPDIFOUT output (Load = 30pf)
Modulating Tx clock (spdif_clk) period
spdif_clk high period
spdif_clk low period
• Skew
• Transition Rising
• Transition Falling
SS14
SS15
SS16
SS17
SS1
SS2
SS3
SS4
SS5
spdif_clk
ID
(Input)
SPDIF AC Timing
BITCLK period
BITCLK high period
BITCLK rise time
BITCLK low period
BITCLK fall time
BITCLK high to LRCLK high
BITCLK high to LRCLK low
SDATA setup time before BITCLK high
SDATA hold time after BITCLK high
Table 56
Characteristics
shows SPDIF timing parameters, including the timing of the modulating Tx clock
i.MX28 Applications Processors for Automotive Products, Rev. 3
Table 55. SAIF Receiver Timing with Internal Clock
Parameter
Figure 35. spdif_clk Timing
Table 56. SPDIF Timing
spclkpl
Figure
Symbol
spclkph
spclkpl
spclkp
—
—
—
spclkp
35.
spclkph
Timing Parameter Range
81.4
65.1
65.1
Min
—
—
—
Min.
81.4
36.0
36.0
10.0
0.0
—
—
—
—
Electrical Characteristics
Max
13.6
18.0
1.5
—
—
—
Max.
15.0
15.0
6.0
6.0
—
—
—
—
—
Unit
ns
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
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