NJW1503A Datasheet

IC型號(hào)：
NJW1503A
PDF描述：
PLL Synthesizer with 3-Wire Bus for TV Tuner
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112.65KB
PDF頁(yè)數(shù)：
9頁(yè)
芯片廠家：
NJRC

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NJW1503A

PLL Synthesizer with 3-Wire Bus for TV Tuner

DESCRIPTION

The NJW1503A is a PLL frequency synthesizer especially designed

for TV and VCR tuning systems and consists of PLL circuit and a

prescaler which operates up to 1.0GHz, built into one chip.

The NJW1503A is controlled through a 3-wire bus.

FEATURES

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Operating Voltage 5V

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Low Operating Current : 15mA typ. @Vcc=5V

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Prescaler accepts frequencies up to 1GHz on chip

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3-wire bus controlled

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Reference divider ratio automatic setting (512 or 1024)

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34V max. tuning voltage output

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Package Outline: SSOP16

PACKAGE OUTLINE

NJW1503AV

BLOCK DIAGRAM

VCC1

5V GND

BS0-BS3

VCC3

BAND SW

4bit

Latch

3Wire Bus

Receiver

DAT

CLK

HF IN

PreAMP

VCC2

1/8

Programmable

Divider 15bit

15bit

Latch

8bit

Latch

OSCOUT

Phase

OUT

AMP

Phase

Comp

1/1024

1/512

(1/640)

Ref

Divider

X鈥檛al

OSC

XTAL

AMPOUT

-1-

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