Datasheet
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DIR9001
SLES198 – DECEMBER 2006
The differences between the DIR1703 and DIR9001 I/O pins are shown in Table 13 .
Table 13. The Differences Between DIR1703 and DIR9001 in All I/O Pin
PIN NO. DIR1703 DIR9001 DIFFERENCES DESCRIPTIONS OF DIR9001
1 ADFLG AUDIO Pin name only Channel-status data information of non-audio sample word, active-low
2 BRATE0 FSOUT0 Pin name only Actual-sampling-frequency calculated result output 0
3 BRATE1 FSOUT1 Pin name only Actual-sampling-frequency calculated result output 1
4 SCKO SCKO Same function System clock output
5 V
DD
V
DD
Same function Digital power supply, 3.3-V
6 DGND DGND Same function Digital ground
7 XTO XTO Same function Oscillation amplifier output
8 XTI XTI Same function Oscillation amplifier input, or external XTI source clock input
9 CKTRNS CLKST CLKST is active-high Clock change/transition signal output
10 LRCKO LRCKO Same function Audio data latch enable output
11 BCKO BCKO Same function Audio data bit clock output
12 DOUT DOUT Same function 16 bit–24 bit decoded serial digital audio data output
13 SCF0 PSCK0 Pin name only SCKO output frequency selection 0
14 SCF1 PSCK1 Pin name only SCKO output frequency selection 1
15 CSBIT COUT Pin name only Channel-status data serial output synchronized with LRCKO
16 URBIT UOUT Pin name only User data serial output synchronized with LRCKO
17 EMFLG EMPH Pin name only Channel-status data Information of pre-emphasis (50 µ s/15 µ s)
18 BFRAME BFRAME Same function Indication of top block of biphase input signal
19 BRSEL RSV Reserved Reserved, must be connected to DGND
20 DIN RXIN Pin name only Biphase digital data input
21 RST RST Same function Reset control input, active-low
22 FILT FILT Same function External filter connection terminal. Recommended filter must be
connected.
23 AGND AGND Same function Analog ground
24 V
CC
V
CC
Same function Analog power supply, 3.3-V
25 FMT0 FMT0 Same function Decoded serial digital audio data output format selection 0
26 FMT1 FMT1 Same function Decoded serial digital audio data output format selection 1
27 UNLOCK ERROR Pin name only Indication of internal PLL or data parity error
28 CKSEL CKSEL Same function Selection of system clock source, Low: PLL (VCO) clock, High: XTI clock
27
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