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APPLICATION INFORMATION

Differences for DIR1703

DIR9001

SLES198 – DECEMBER 2006

The DIR9001 has many improved functions compared to the DIR1703.

The DIR9001 functions are similar to those of the DIR1703.

The DIR9001 pin assignment is equivalent to that of the DIR1703.

The DIR9001 biphase input signal decoding function is almost equivalent to that of the DIR1703.

The differences between the DIR9001 and DIR1703 are shown in Table 12.

Table 12. Main Differences Between DIR1703 and DIR9001

DIFFERENCE

DIR1703

DIR9001

Operational supply-voltage range

3 V to 3.6 V

2.7 V to 3.6 V

Operation temperature range

–25

°C to 85°C

–40

°C to 85°C

Package

SSOP-28P, pin pitch: 0.65 mm

TSSOP-28P, pin pitch: 0.65 mm

Clock recovery architecture

SpAct™ feature

Conventional PLL

IEC60958-3 jitter tolerance

Not compliant

Compliant

IEC60958 sampling frequency accuracy

Level II (

±1000 ppm)

Level III (

±12.5%)

Acceptable sampling frequency

32/44.1/48/88.2/96 kHz, ±1500 ppm

28 kHz to 108 kHz continuous

Biphase input signal level

CMOS level

5-V tolerant TTL level

Connection of loop filter

Between FILT pin and VCC

Between FILT pin and AGND

XTI source clock frequency

One of the following clock sources or

Optional 24.576-MHz (24.576-MHz clock is

resonators must be connected to the XTI pin:

only required to use the internal

4.069/5.6448/6.144/ 8.192/11.2896/12.288/

actual-sampling-frequency calculator or use

16.384/16.9344/18.432/ 22.5792/24.576-MHz

the DIR9001 as a 24.576-MHz clock

generator.)

BFRAME H period

Channel status and user data

Synchronous with LRCK transition

17-BCK delay from LRCK transition

Latest tracked frequency hold

Available

Not available

PLL mode clock at error

Latest tracked frequency

VCO free-running frequency

Clock transition signal out

CKTRNS pin, active H

CLKST pin, active-high

Oscillation amplifier

External feedback resistor (typ. 1 M

Ω)

Internal feedback resistor

26

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