Datasheet

i.MX 6Dual/6Quad Applications Processors for Industrial Products, Rev. 6, 11/2018
116 NXP Semiconductors
Electrical Characteristics
4.12.18 SPDIF Timing Parameters
The Sony/Philips Digital Interconnect Format (SPDIF) data is sent using the 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.
Table 71 and Figure 84 and Figure 85 show SPDIF timing parameters for the Sony/Philips Digital
Interconnect Format (SPDIF), including the timing of the modulating Rx clock (SPDIF_SR_CLK) for
SPDIF in Rx mode and the timing of the modulating Tx clock (SPDIF_ST_CLK) for SPDIF in Tx mode.
SJ9 JTAG_TMS, JTAG_TDI data hold time 25 — ns
SJ10 JTAG_TCK low to JTAG_TDO data valid — 44 ns
SJ11 JTAG_TCK low to JTAG_TDO high impedance — 44 ns
SJ12 JTAG_TRST_B assert time 100 — ns
SJ13 JTAG_TRST_B set-up time to JTAG_TCK low 40 — ns
1
T
DC
= target frequency of SJC
2
V
M
= mid-point voltage
Table 71. SPDIF Timing Parameters
Parameter Symbol
Timing Parameter Range
Unit
Min Max
SPDIF_IN Skew: asynchronous inputs, no specs apply — — 0.7 ns
SPDIF_OUT output (Load = 50pf)
• Skew
• Transition rising
• Transition falling
—
—
—
—
—
—
1.5
24.2
31.3
ns
SPDIF_OUT output (Load = 30pf)
• Skew
• Transition rising
• Transition falling
—
—
—
—
—
—
1.5
13.6
18.0
ns
Modulating Rx clock (SPDIF_SR_CLK) period srckp 40.0 — ns
SPDIF_SR_CLK high period srckph 16.0 — ns
SPDIF_SR_CLK low period srckpl 16.0 — ns
Modulating Tx clock (SPDIF_ST_CLK) period stclkp 40.0 — ns
SPDIF_ST_CLK high period stclkph 16.0 — ns
SPDIF_ST_CLK low period stclkpl 16.0 — ns
Table 70. JTAG Timing (continued)
ID Parameter
1,2
All Frequencies
Unit
Min Max