Datasheet

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SYSTEM RESET

2.7 V

Min. 100 ns

Reset

RST

Operation

Unknown

DIR9001

Status

DIR9001

SLES198 – DECEMBER 2006

DEVICE INFORMATION (continued)

The DIR9001 reset function is controlled by and external reset pin, RST.

The reset operation must be performed during the power-up sequence as shown in Figure 4 . Specifically, the

DIR9001 requires reset operation with a 100-ns period after the supply voltage rises above 2.7 V.

Figure 4. Required System Reset Timing

The state of each output pins during reset is shown in Table 1 .

Table 1. Output-Pin States During Reset Period

CLASSIFICATION PIN NAME WHILE RST = L

BCKO L

Clock LRCKO L

SCKO L

Data DOUT L

AUDIO L

BFRAME L

CLKST L

COUT L

Flag and status EMPH L

ERROR H

FSOUT0 L

FSOUT1 L

UOUT L

Oscillation amplifier XTO Output

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