DIR1703 datasheet(27/30 Pages) TI

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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

ADFLG

AUDIO

Pin name only

Channel-status data information of non-audio sample word, active-low

BRATE0

FSOUT0

Pin name only

Actual-sampling-frequency calculated result output 0

BRATE1

FSOUT1

Pin name only

Actual-sampling-frequency calculated result output 1

SCKO

Same function

System clock output

VDD

Same function

Digital power supply, 3.3-V

DGND

Same function

Digital ground

XTO

Same function

Oscillation amplifier output

XTI

Same function

Oscillation amplifier input, or external XTI source clock input

CKTRNS

CLKST

CLKST is active-high

Clock change/transition signal output

LRCKO

Same function

Audio data latch enable output

BCKO

Same function

Audio data bit clock output

DOUT

Same function

16 bit–24 bit decoded serial digital audio data output

SCF0

PSCK0

Pin name only

SCKO output frequency selection 0

SCF1

PSCK1

Pin name only

SCKO output frequency selection 1

CSBIT

COUT

Pin name only

Channel-status data serial output synchronized with LRCKO

URBIT

UOUT

Pin name only

User data serial output synchronized with LRCKO

EMFLG

EMPH

Pin name only

Channel-status data Information of pre-emphasis (50

µs/15 µs)

BFRAME

Same function

Indication of top block of biphase input signal

BRSEL

RSV

Reserved

Reserved, must be connected to DGND

DIN

RXIN

Pin name only

Biphase digital data input

RST

Same function

Reset control input, active-low

FILT

Same function

External filter connection terminal. Recommended filter must be

connected.

AGND

Same function

Analog ground

VCC

Same function

Analog power supply, 3.3-V

FMT0

Same function

Decoded serial digital audio data output format selection 0

FMT1

Same function

Decoded serial digital audio data output format selection 1

UNLOCK

ERROR

Pin name only

Indication of internal PLL or data parity error

CKSEL

Same function

Selection of system clock source, Low: PLL (VCO) clock, High: XTI clock

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