BU1425AK datasheet(8/32 Pages) ROHM

Teilenummer	BU1425AK

Bauteilbeschribung	NTSC / PAL digital RGB encoder

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Hersteller	ROHM [Rohm]

Direct Link	http://www.rohm.com

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8 / 32 page

8

Multimedia ICs

BU1425AK / BU1425AKV

Pin No.

Pin name

Equivalent circuit

I / O

Function

27

VSY

I / O

Vertical synchronization signals (Vsync)

are input (when SLABEB = LOW) or

output (when SLABEB = HIGH) here.

35

VREF-C

I

This is the reference voltage generator

circuit monitoring pin which deter-

mines the output amplitude (output cur-

rent for 1 LSB) of the DAC. A 0.01

µF

capacitor should be attached between

this and pin 43 (AVDD).

29

PIXCLK

O

The internal processing clock is divid-

ed in half and output. Data is read at

the point at which the edge of this

clock changes. This can also be used

as the clock for the OSD IC.

32

INT

I

This pin switches between interlace

(when HIGH) and non-interlace (when

LOW) modes. This pin is effective in

both

the

VIDEO-CD

and

CD-G

modes.

33

34

SLABEB

ADDH

I

This pin switches between the Master

(when HIGH) and Slave (when LOW)

modes. It is effective in the non-

interlace mode, and it switches bet-

ween – 0.5 lines (when LOW) and + 0.5

lines (when HIGH) for the number of

lines in an interlace field.

28

HSY

I / O

This is the horizontal synchronization

signal pin. Negative polarity Hsync

signals are input (when SLABEB =

LOW) or output (when SLABEB =

HIGH) here. This is also used as the

synchronization signal for fixing the

PIXCLK output phase.

37

COUT

O

This is the chrominance output pin for

the S pin.

Ähnliche Beschreibung - BU1425AK

Hersteller	Teilenummer	Datenblatt	Bauteilbeschribung
Rohm	BU1424K	273Kb / 30P	NTSC / PAL digital RGB encoder
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	AD724	205Kb / 15P	RGB to NTSC/PAL Encoder REV. B
	AD724JRZ	198Kb / 15P	RGB to NTSC/PAL Encoder REV. B
Mitsubishi Electric Sem...	M65677FP	38Kb / 6P	DIGITAL NTSC/PAL ENCODER
Mitsubishi Electric Sem...	M65675FP	83Kb / 17P	DIGITAL NTSC/PAL ENCODER
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STMicroelectronics	STV0116	1Mb / 21P	PAL/NTSC DIGITAL ENCODER October 1996

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