mc44bc375 Freescale Semiconductor, Inc, mc44bc375 Datasheet - Page 6

• Manufacturer Part Number: mc44bc375
• Description: Pll Tuned Vhf Audio/ Video High Integration Modulator Ics
• Manufacturer: Freescale Semiconductor, Inc

Pin Selection
7 Pin Selection
By default (open condition), all pins are “HI”.
7.1 Test Modes
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 75
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.
6
1
2
9
16
CHS
PSS
SFS
VIDEO
TV OUT output level
Sound subcarrier Harmonics (fp+n*fs)
Second Harmonic of chroma subcarrier.
Chroma/Sound intermodulation: fp + (fsnd-fchr) Using red EBU bar
Fo (picture carrier) Harmonics (See Note1)
Out Band (picture carrier) Spurious
In band spurious (Fo +/- 5 MHz range)
4 MHz Crystal Spurious (Fo +/- 4 MHz)
Note: 1: Picture carrier harmonics are highly dependant on PCB layout and decoupling capacitors.
Pin Nb
Pin
CHS
PSS
PSave/LO
SFS
Pin Name
Vcc + 0.3V
Vcc + 1.1V
Vcc + 1Vbe
Vcc + 1Vbe
Vcc + 0.3V
Vcc + 1.1V
Test modes are intended for manufacturing test purpose only and not to be
be used for normal application.
Parameter
DC level
MC44BC375U
MC44BC375J
MC44BC375T
MC44BC375U/J/T
MC44BC375U/J/T
MC44BC375U/J/T
Freescale Semiconductor, Inc.
Device
For More Information On This Product,
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
MC44BC375/U/J/T Technical Data
Go to: www.freescale.com
CH4
CH2
CH13
14dB
Power save Mode
LOP pin LO (Low voltage)
5.5Mhz
Ref Picture carrier
Using red EBU bar
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
NOTE:
LO (grounded)
Test Conditions
Ω
load.SPECIFICATIONS ONLY VALID FOR
Description
CH3
CH1
CH13
16dB
Normal Operation
LOP pin HI (High impedance
4.5Mhz
Min
74
-
-
-
HI (Open or +5V)
Typ
-73
-65
-65
-70
-82
76
30
66
Max
-65
-55
-60
-62
-75
79
42
69
27
MOTOROLA
dBµV
dBµV
dBµV
dBµV
Unit
dBc
dBc
dBc
dBc
dBc
Type
B
C
C
C
C
C
C
C
C