TDA9880 Просмотр технического описания (PDF) - Philips Electronics

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TDA9880

Alignment-free multistandard vision and FM sound IF-PLL demodulator

Philips Electronics 

Philips Semiconductors

Alignment-free multistandard vision and

FM sound IF-PLL demodulator

Product specification

TDA9880

FEATURES

• 5 V supply voltage

• Gain controlled wide-band Vision Intermediate

Frequency (VIF) amplifier (AC-coupled)

• True synchronous demodulation with active carrier

regeneration (very linear demodulation, good

intermodulation figures, reduced harmonics and

excellent pulse response)

• Fully integrated VIF Voltage Controlled Oscillator

(VCO), alignment-free

• Digital acquisition help, VIF frequencies of 38.0, 38.9,

45.75 and 58.75 MHz

• 4 MHz reference frequency input [signal from

Phase-Locked Loop (PLL) tuning system] or operating

as crystal oscillator

• VIF Automatic Gain Control (AGC) detector for gain

control, operating as peak sync detector, fast reaction

time

• Precise fully digital Automatic Frequency Control (AFC)

detector with 4-bit digital-to-analog converter

• Fully integrated sound carrier trap for 4.5, 5.5,

6.0 and 6.5 MHz, controlled by reference signal

• Alignment-free selective FM-PLL demodulator with high

linearity and low noise

• Digital frequency control, sound carrier frequencies

4.5, 5.5, 6.0 and 6.5 MHz

• Stabilizer circuit for ripple rejection and to achieve

constant output signals

• Electrostatic discharge (ESD) protection for all pins.

GENERAL DESCRIPTION

The TDA9880(T) is an integrated circuit for multistandard

vision IF signal processing and FM demodulation in TV

and VTR sets.

ORDERING INFORMATION

TYPE NUMBER

TDA9880

TDA9880T

NAME

SDIP20

SO20

PACKAGE

DESCRIPTION

plastic shrink dual in-line package; 20 leads (300 mil)

plastic small outline package; 20 leads; body width 7.5 mm

VERSION

SOT325-1

SOT163-1

1999 Jul 21

2

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