QS7777PF データシートの表示（PDF） - Nippon Precision Circuits

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QS7777PF

QSurround™ 3D Virtual Audio Processor for Dolby AC-3 and ProLogic

Nippon Precision Circuits  

QS7777PF/CF

Parameter

RIN to FOUT gain

RIN to FOUT crosstalk gain

SCL clock pulse period

SCL clock HIGH-level pulsewidth

SCL clock LOW -level pulsewidth

SDA setup time

SDA hold time

STRB setup time

STRB clock pulsewidth

STRB hold time

SCL hold time

SCL setup time

SDA hold time

SDA setup time

SCL clock HIGH-level pulsewidth

SCL clock LOW -level pulsewidth

SCL rise time

SCL fall time

Symbol

Condition

Rating

Unit

min

typ

max

SPREAD = HIGH, BYP = LOW , AR =

G RF

L O W , f = 1kHz, RLIN to FLOUT, RRIN to

8

FROUT

10

12

dB

SPREAD = HIGH, BYP = LOW , AR =

G RXF LOW , f = 1kHz, RLIN to FRO U T, RRIN to

8.5

10.5

12.5

dB

FLOUT

t0

t1

t2

t3

t4

t5

t6

t7

tH D ; S TA

tS U ; S TO

tH D ; DAT

tS U ; D AT

tH I G H

tL OW

tr

tf

QS7777PF

QS7777PF

QS7777PF

QS7777PF

QS7777PF

QS7777PF

QS7777PF

QS7777PF

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

QS7777CF (I2C)

100

–

–

ns

40

–

–

ns

40

–

–

ns

15

–

–

ns

30

–

–

ns

50

–

–

ns

100

–

–

ns

50

–

–

ns

4.0

–

–

µs

4.0

–

–

µs

5.0

–

–

µs

250

–

–

ns

4.0

–

–

µs

4.7

–

–

µs

–

–

1000

ns

–

–

300

ns

Serial Interface Timing

3-wire (QS7777PF) timing

SDA

X

BYP

MO

AR

SCL

STRB

t3

t4

t1 t2

t0

AC

SPRD

AREA

PSAVE

MUTE

t5

t7

t6

I2C 2-wire (QS7777CF) timing

SDA

SCL

AD6

tHD;STA

AD0

BYP

tSU;DAT

MO

AR

AC

tHD;DAT

SPRD AREA PSAVE MUTE

tr

tf

tHIGH

tLOW

tSU;STO

AD6:0 represents the QS7777CF I2C slave address 0011110.

NIPPON PRECISION CIRCUITS—6

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