LC78681E datasheet(4/23 Pages) SANYO

Numer części	LC78681E

Szczegółowy opis	Digital Signal Processor for Compact Disc Players

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Producent	SANYO [Sanyo Semicon Device]

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Allowable Operating Ranges at Ta = 25°C, VSS = 0 V

Electrical Characteristics at Ta = 25°C, VSS = 0 V, VDD = 5 V

No. 4521-4/23

LC78681E

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Supply voltage

VDD

4.5

5.5

V

VIH (1)

TEST1 to 5, AI, FZD, HFL, DEMO, M/L,

0.7 VDD

VDD

V

RES

Input high level voltage

VIH (2)

SBCK, RWC, COIN, CQCK, CS

2.2

VDD

V

VIH (3)

EFMIN

0.6 VDD

VDD

V

VIH (4)

TES

0.8 VDD

VDD

V

VIL (1)

TEST1 to 5, AI, FZD, HFL, DEMO, M/L,

VSS

0.3 VDD

V

RES

Input low level voltage

VIL (2)

SBCK, RWC, COIN, CQCK, CS

VSS

0.8

V

VIL (3)

EFMIN

VSS

0.4 VDD

V

VIL (4)

TES

VSS

0.2 VDD

V

Data setup time

t set up

COIN, RWC: Figure 1

400

ns

Data hold time

t hold

RWC: Figure 1

400

ns

High level clock pulse width

tWøH

SBCK, CQCK: Figures 1, 2 and 3

400

ns

Low level clock pulse width

tWøL

CQCK, SBCK: Figures 1, 2 and 3

400

ns

Data read access time

tRAC

Figures 2 and 3

0

400

ns

Command output time

tRWC

RWC: Figure 1

1000

ns

Sub-Q read enable time

tSQE

Figure 2, no RWC signal

11.2

ms

Subcode read cycle

t sc

Figure 3

136

µs

Subcode read enable

t se

Figure 3

400

ns

Crystal oscillator frequency

fX’tal

XIN, XOUT

16.9344

MHz

Operating frequency range

f op (1)

AI

2.0

20

MHz

f op (2)

EFMIN: VIN ≥ 1 Vpp

10

MHz

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

Current drain

IDD

17

30

mA

IIH (1)

AI, EFMIN, FZD, TES, SBCK, COIN,

5µA

Input high level current

CQCK, RES, HFL, RWC, M/L: VIN = VDD

IIH (2)

TEST1 to 5, DEMO, CS:

25

75

µA

VIN = VDD = 5.5 V

Input low level current

IIL (1)

AI, EFMIN, FZD, TES, SBCK, COIN,

–5µA

CQCK, RES, HFL, RWC, M/L: VIN = VSS

AO, PDO, EFMO, EFMO, CLV+, CLV –,

VOH (1)

FOCS, FSEQ, PCK, TOFF, TGL, THLD,

VDD – 1V

JP+, JP–, EMPH, EFLG, FSX, V/P:

IOH = –1 mA

Output high level voltage

VOH (2)

DOUT: IOH = –12 mA

VDD – 0.5

V

LASER, SQOUT, 16M, 4.2M, CONT,

WCLK, TEST7, LRCLK, WRQ, C2F,

VOH (3)

DFOUT, DACLK, SFSY, LRSY, SBSY,

VDD – 1V

CK2, PW, ROMOUT, C2FCLK:

IOH = –0.5 mA

Continued on next page.

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