No. 6329-9/40

LC78628E

Pin Functions

Pin No.

Pin

I/O

Function

1

DEFI

I

Defect detection signal (DEF) input (Must be connected to 0 V if unused.)

2

TAI

I

Test input. A pull-down resistor is built in. This pin must be connected to 0 V.

3

PDO

O

External VCO control phase comparator output

—

PLL-related pins

Internal VCO ground. This pin must be connected to 0 V.

AI

PDO output current adjustment resistor connection

—

Internal VCO power supply. 5 V system

7

FR

AI

VCO frequency range adjustment resistor connection

—

Ground. This pin must be connected to 0 V.

—

Ground. This pin must be connected to 0 V.

10

EFMO

O

Slice level control

EFM signal output

11

EFMIN

I

EFM signal input

12

TEST2

I

Test input. A pull-down resistor is built in. This pin must be connected to 0 V.

13

O

14

O

A command is provided to set these pins to three-state output.

15

V/P

O

Automatic rough servo/phase control switching monitor output. A high level indicates rough servo and a low level indicates

phase control.

16

—

5 V system power supply

17

P4

I/O

General-purpose I/O port. If unused, this port must either be set to input mode and connected to the 0 V level, or be set to

output mode and left open.

General-purpose I/O command identification. A pull-down resistor is built in.

18

PCCL

I

High: Only general-purpose I/O port commands can be used for control

Low: All commands can be used for control.

19

HFL

I

Track detection signal input. This is a Schmitt input.

20

TES

I

Tracking error signal input. This is a Schmitt input.

21

PCK

O

EFM data reproduction clock monitor output. Outputs 4.3218 MHz when the phase is locked.

Synchronizing signal output.

22

FSEQ

O

Outputs a high level if the synchronizing signal detected from the EFM signal and the internally generated synchronizing

signal match.

23

TOFF

O

Tracking off state output

24

TGL

O

Tracking gain switching output. A low level output raises the gain.

25

HDCD

O

HDCD identification output. High: An HDCD disc is being played, Low: A normal disc is being played.

26

TEST3

I

Test input. A pull-down resistor is built in. This pin must be connected to 0 V.

27

—

3 V system power supply

28

O

Track jump outputs.

29

O

A command is provided to set these pins to three-state output.

30

16M

O

16.9344 MHz clock output

31

TEST4

I

Test input. A pull-down resistor is built in. This pin must be connected to 0 V.

Deemphasis monitor output/input. A high level is output during playback of a deemphasis disc. When external data is applied

32

EMPH

I/O

to the HDCD filter engine, this pin is used for deemphasis switching. After a reset, this pin goes to monitor output mode in the

high-impedance state.

33

LRCKO

O

HDCD filter engine output word clock (8fs) or L/R clock output from the HDCD decoder (1fs).

34

DFORO

O

HDCD filter engine output right channel data (8fs)

35

DFOLO

O

HDCD filter engine output left channel data (8fs) or L/R data output from the HDCD decoder (1fs).

36

DACKO

O

HDCD filter engine output bit clock (8fs) or HDCD decoder output bit clock (1fs).

Analog output stage gain indicator

37

GAIN

O

In internal gain scaling mode, this pin always outputs a high level (unused). Gain scaling is performed internally. Normal discs

are –6 dB. When external gain scaling is used, peak extend should be turned on when this pin is high, and should be turned

off when this output is low.

38

P0

I/O

General-purpose I/O port. If unused, this port must either be set to input mode and connected to the 0 V level, or be set to

output mode and left open.

39

P1

I/O

General-purpose I/O port. If unused, this port must either be set to input mode and connected to the 0 V level, or be set to

output mode and left open.

40

P2

I/O

General-purpose I/O port. If unused, this port must either be set to input mode and connected to the 0 V level, or be set to

output mode and left open.

41

P3

I/O

General-purpose I/O port. If unused, this port must either be set to input mode and connected to the 0 V level, or be set to

output mode and left open.

Continued on next page.