MC44BC375JDR2 データシートの表示（PDF） - Freescale Semiconductor

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MC44BC375JDR2

PLL Tuned VHF Audio/Video High Integration Modulator ICs

Freescale Semiconductor 

Pin Selection

Freescale Semiconductor, Inc.

7 Pin Selection

Pin Nb Pin Name

Device

LO (grounded)

1

CHS

MC44BC375U

MC44BC375J

MC44BC375T

CH4

CH2

CH13

2

PSS

MC44BC375U/J/T 14dB

9

PSave/LO

MC44BC375U/J/T

Power save Mode

LOP pin LO (Low voltage)

16

SFS

MC44BC375U/J/T 5.5Mhz

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

HI (Open or +5V)

CH3

CH1

CH13

16dB

Normal Operation

LOP pin HI (High impedance

4.5Mhz

7.1 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 4 for MC44BC375U/J, and

divided by 8 for MC44BC375T)

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.

8 High Frequency Characteristics (U Version)

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 U version on both channel 3 and 4. See Section 11,

“Characterization Measurement Conditions” on page 7 for “C” type parameters.

Parameter

Test Conditions

Min Typ Max Unit Type

TV OUT output level

74 76 79 dBµV B

Sound subcarrier Harmonics (fp+n*fs)

Ref Picture carrier

- -73 -65 dBc C

Second Harmonic of chroma subcarrier.

Using red EBU bar

- -65 -55 dBc C

Chroma/Sound intermodulation: fp + (fsnd-fchr) Using red EBU bar

- -65 -60 dBc C

Fo (picture carrier) Harmonics (See Note1)

2nd harmonic

3rd harmonic

30 42 dBµV C

66 69 dBµV C

Out Band (picture carrier) Spurious

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

27 dBµV C

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

No video or sound modulation

-70 -62 dBc C

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

No video or sound modulation

-82 -75 dBc C

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

6

MC44BC375/U/J/T Technical Data

MOTOROLA

For More Information On This Product,

Go to: www.freescale.com

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