BA7657F datasheet(6/13 Pages) ROHM

6 / 13 page

Multimedia ICs

BA7657F / BA7657S

•Guaranteed design parameters (unless otherwise noted, Ta = 25°C, VCC = 5.0V)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

Measurement circuit

Input pin crosstalk 2

〈Analog switch unit〉

CTI2

—

Fig.2

Block crosstalk 2

CTB2

—

Fig.2

Frequency characteristic deviation

Fig.2

Input pin frequency characteristic deviation

∆GfI

Fig.2

Block frequency characteristic deviation

∆GfB

– 30

– 15

– 30

– 15

– 6

– 3

– 1

+ 1

– 1

+ 1

Fig.2

f = 230MHz, VIN = 1VP-P

f = 1MHz / 230MHz, VIN = 1VP-P

f = 1MHz / 100MHz, VIN = 1VP-P

SYNC separation frequency

fH-R

200

—

kHz

input waveform∗1

Fig.3

SYNC separation pulse width 1

pwH1

3.0

—

µs

input waveform∗2 fH = 20kHz

Fig.3

SYNC separation pulse width 2

pwH2

0.5

—

µs

input waveform∗2 fH = 100kHz

Fig.3

SYNC separation pulse width 3

pwH3

0.3

—

µs

input waveform∗2 fH = 200kHz

Fig.3

SYNC separation level 1

〈SYNC separation unit〉

VS1

300

—

µs

input waveform∗3 fH = 20kHz

Fig.3

SYNC separation level 2

VS2

100

—

µs

input waveform∗3 fH = 100kHz

Fig.3

SYNC separation level 3

VS3

—

µs

input waveform∗3 fH = 200kHz

Fig.3

Input waveform (input to pin 3 or 9 [see illustration to right], Ro = 240

Ω)

∗1 Vs and pwH = variable. Vs and pwH are interrelated. Refer to characteristics graph.

∗2 Vs = 130mV, pwH = variable

∗3 pwH = 1µs, Vs = variable

Duration of horizontal synchronization signal

Duty 25%

Vr = 0.7V

Vs = 130mV

pwH = 1

µs

(1H)

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