MC44BC375UA(2003) 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC44BC375UA
(Rev.:2003)

PLL Tuned VHF Audio/ Video High Integration IC (Channel 3 and 4 80 dBµV RF Level)

Freescale Semiconductor 

Pin Selection

Freescale Semiconductor, Inc.

8 Pin Selection

Pin Nb Pin Name

LO (grounded)

1

CHS CH4

2

PSS 14dB

9

PSave/LO

Power save Mode

LOP pin LO (Low voltage)

16

SFS 5.5Mhz

By default (open condition), all pins are “HI”.

HI (Open or +5V)

CH3

16dB

Normal Operation

LOP pin HI (High impedance

4.5Mhz

8.1 Test Modes

Pin

CHS

PSS

SFS

VIDEO

DC level

Vcc + 0.3V

Vcc + 1.1V

Vcc + 1Vbe

Vcc + 1Vbe

Vcc + 0.3V

Vcc + 1.1V

Description

Low frequency testing (RF frequency divided by)

Base band test mode (DC drive applied to modulators)

Transient Output Inhibit Disabled

Sound Oscillator OFF

Force UHF and Sound PLL Upper current source

Force UHF and Sound PLL Lower current source

NOTE:

Test modes are intended for manufacturing test purpose only and not to be

be used for normal application.

9 High Frequency Characteristics

For all the following specifications and unless otherwise stated: Vcc = 5.0V, T amb. = 25°C.Video input

1Vp-p, 10 step greyscale.RF inputs/outputs into 75Ω load.SPECIFICATIONS ONLY VALID FOR

ENVELOPE DEMODULATION. Measured on both channel 3 and 4. See Section 12, “Characterization

Measurement Conditions” on page 9.

Parameter

Test Conditions

Min Typ Max Unit Type

TV OUT output level

Sound subcarrier Harmonics (fp+n*fs)

Second Harmonic of chroma subcarrier.

Ref Picture carrier

Using red EBU bar

78 80 83 dBuV B

- -72 -65 dBc C

-

- -60 dBc C

Chroma/Sound intermodulation: fp + (fsnd-

fchr)

Using red EBU bar

-

- -60 dBc C

Fo (picture carrier) Harmonics

Out Band (picture carrier) Spurious

In band spurious (Fo +/- 5 MHz range)

4 MHz Crystal Spurious (Fo +/- 4 MHz)

2nd harmonic

3rd harmonic

1/2*Fo - 1/4*Fo - 3/2*Fo - 3/4*Fo

No video or sound modulation

No video or sound modulation

46 dBµV C

73 dBµV C

32 dBµV C

-60 dBc C

-75 dBc C

Note: 1: Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors.

MC44BC375UA Advance Information

For More Information On This Product,

Go to: www.freescale.com

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