XL-70 (serv.man19). IC function tables - Sharp Audio Service Manual (repair manual). Page 6

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1*

TEST0

Input

Test mode terminal. To be opened usually.

2*

/HSO

Output

Playback speed mode flag output terminal.

3*

/UHSO

Output

4*

EMPH

Output

Sub-code Q data emphasis flag output terminal. "H": Emphasis ON  "L": Emphasis OFF
The output polarity can be inverted by command.

5*

LRCK

Output

Channel clock (44.1 kHz) output terminal.  "L": L channel  "H": R channel
The output polarity can be inverted by command.

6

VSS

—

Digital ground terminal.

7*

BCK

Output

Bit clock (1.4122 MHz) output terminal.

8*

AOUT

Output

Audio data output terminal.

9

DOUT

Output

Digital out output terminal.

10*

MBOV

Output

Buffer memory over signal output terminal. "H": Over

11*

IPF

Output

Correction flag output terminal.
"H": When AOUT output is correction-disabled symbol in case of C2 correction output.

12*

SBOK

Output

Sub-code Q data CRCC judgment result output terminal. "H": When judgment result is OK.

13*

CLCK

Input/Output

Sub-code P-W data read clock output/input terminal. Selectable with command bit.

14

VDD

—

Digital + power terminal.

15

VSS

—

Digital ground terminal.

16*

DATA

Output

Sub-code P-W data output terminal.

17*

SFSY

Output

Playback system frame sync signal output terminal.

18*

SBSY

Output

Sub-code block sync output terminal. "H": On S1 position when the sub-code sync is detected.

19*

SPCK

Output

Processor status signal read clock (176.4 kHz) output terminal.

20*

SPDA

Output

Processor status signal output terminal.

21*

COFS

Output

Correction system frame clock (7.35 kHz) output terminal.

22*

MONIT

Output

LSI internal signal monitor terminal.
It is possible to monitor the DSP internal flag and PLL system clock with the microcomputer
command. Terminal for serial output of text data according to command .

23

VDD

—

Digital + power terminal.

24

TESIO0

Input

Test input/output terminal. To be fixed to "L" usually.
Terminal to input the text data read clock according to command.

25

P2VREF

—

2VREF terminal for PLL system.

26*

HSSW

Output

VREF voltage in case of x2 speed/x4 speed.

27*

ZDET

Output

1-bit DAC zero detection flag output terminal.

28

PDO

Output

Terminal to output the phase difference between EFM signal and PLCK signal.

29*

TMAXS

Output

TMAX detection result output terminal. To be selected with command bit TMPS.

30

TMAX

Output

TMAX detection result output terminal. To be selected with command bit TMPS.

31

LPFN

Input

Low-pass filter amp inverted input terminal.

32

LPFO

Output

Low-pass filter amp output terminal.

33

PVREF

—

VREF terminal for PLL system.

34

VCOREF

Input

VCO center frequency standard level terminal. To be fixed to PVref usually.

35

VCOF

Output

VCO filter terminal.

36

AVSS

—

Analog system ground terminal.

37

SLCO

Output

Data slice level generation DAC output terminal.

38

RFI

Input

RF signal input terminal.

H

H

x1 speed playback

H

L

x2 speed playback

L

H

x4 speed playback

L

L

—

/UHSO

/HSO

Playback speed

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Longer than specific period

"P2VREF"

Shorter than specific period

"VSS"

Within specific period

"HIZ"

TMAX detection result

TMAX output