BA7745FS datasheet(3/8 Pages) ROHM

3 / 8 page

Video ICs

BA7745FS

•Recommended operating conditions (Ta = 25°C)

Parameter

Symbol

Min.

Typ. Max.

Unit

4.5

5.0

5.5

10.5

11.0

11.5

VCCS

Recommended

operating voltage

PB / REC system

FE system

•Electrical characteristics

Recording system (unless otherwise noted, Ta = 25°C, VCC = 5V, and f = 1.7MHz)

Parameter

Symbol

Min.

Typ.

Max.

Unit

Conditions

17pin: H

Iq (REC)

—66

IOAR

44.7

48.2

51.7

15pin 93.0dB

µIN, 19pin OUT

∆IOAR

—

∆AGC < 0.8dB, 19pin OUT

CMD04

—

– 50

– 43

15pin MIXIN (∗), 19pin OUT (0.4MHz – 1.3MHz)

CMD09

—

– 55

– 40

15pin MIXIN (∗), 19pin OUT (0.9MHz – 1.3MHz)

2HD26

—

– 47

– 40

15pin MIXIN (∗), 19pin OUT (2.6MHz – 1.3MHz)

CMD30

—

– 42

– 35

15pin MIXIN (∗), 19pin OUT (3.0MHz – 1.3MHz)

2HD34

—

– 45

– 40

15pin MIXIN (∗), 19pin OUT (3.4MHz – 1.7MHz)

V14L

0.0

—

2.2

3.5

—

IOR.OV

+ 1.4

+ 1.9

+ 2.4

V13L

0.0

—

2.2

V13H

3.5

—

IOR.MU

—

– 45

– 40

VCC

mAP-P

V14H

∗ f = 1.3MHz (89.0dBµ) + 1.7MHz (97.0dBµ) (MIX)

15pin 93.0dB

µIN, 14pin: “H”

15pin 93.0dB

µIN, 13pin: “H”

When 14pin DC, NORMAL REC

When 14pin DC, OVER REC

When 13pin DC, MUTE OFF

When 13pin DC, MUTE ON

No signal, pin 12 + pin 29, inflow current

〈Recording mode〉

Quiescent current

Output current AGC level

Output current AGC range

Cross modulation distortion 0.4MHz component

Cross modulation distortion 0.9MHz component

2nd-harmonic distortion 2.6MHz component

Cross modulation distortion 3.0MHz component

2nd-harmonic distortion 3.4MHz component

OVER REC holding voltage

Current emphasis OVER

REC MUTE holding voltage

Mute attenuation

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