mc44bc375 Freescale Semiconductor, Inc, mc44bc375 Datasheet

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mc44bc375

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

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This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice. © Motorola, Inc., 2002. All rights reserved.
Technical Data
MC44BC375/D
Rev. 2.6 01/2003
MC44BC375/U/J/T
PLL Tuned VHF Audio/
Video High Integration
Modulator ICs
Contents List
1 Features . . . . . . . . . . . . . 2
2 Device Overview . . . . . . 3
3 Maximum Ratings . . . . . 4
4 Thermal Rating . . . . . . . 4
5 Electrostatic Discharge 4
6 Electrical
7 Pin Selection . . . . . . . . . 6
8 High Frequency
9 Video Characteristics . . 7
10 Audio Characteristics . . 7
11 Characterization
12 Modulator
13 Pin Circuit Schematics 14
14 MC44BC375U Application
15 Markings and Case
Characteristics
Characteristics
(U Version)
Measurement
Conditions
Functionality
Schematic
Diagrams
11
15
16
5
6
7
This modulator circuit is for use in VCRs, set top boxes and similar devices. The device
differences are as follows:
MC44BC375U VHF [CH3 & CH4] (Americas)
MC44BC375J VHF [CH1 & CH2] (Japan)
MC44BC375T VHF [CH13] (Taiwan)
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 1. MC44BC375U/J/T Pin Connection Diagram
Go to: www.freescale.com
SPLFLT
PREEM
AUDIO
XTAL
GND
CHS
LOP
PSS
1
2
3
4
5
6
7
8
MC44BC375/U/J/T
MC44BC375UD, R2
MC44BC375TD, R2
MC44BC375JD, R2
16
15
14
13
12
11
10
9
Device
NOTE: For tape and reel, add R2 suffix.
SFS
PLLFLT
TVOVCC
PSave/LO
TVOUT
GND
VCCA
VIDEO
Ordering Information
SO16 Package
-20°C to +85°C
Temp. Range
Package
SO16NB

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mc44bc375 Summary of contents

Page 1

... Features . . . . . . . . . . . . . 2 2 Device Overview . . . . . . 3 • MC44BC375U VHF [CH3 & CH4] (Americas) 3 Maximum Ratings . . . . . 4 4 Thermal Rating . . . . . . . 4 • MC44BC375J VHF [CH1 & CH2] (Japan) 5 Electrostatic Discharge 4 6 Electrical • MC44BC375T VHF [CH13] (Taiwan) Characteristics 5 7 Pin Selection . . . . . . . . . 6 8 High Frequency ...

Page 2

... Transient Output Inhibit During PLL Lock-up at Power-on • Logic Output Port selected by Psave/LO pin (Antenna Switch Driver) • Extremely Robust ESD protection, Minimum 4kV, typical 6kV. • Available in 80 dBuV RF output level (MC44BC375UA). 2 For More Information On This Product, MC44BC375/U/J/T Technical Data Go to: www.freescale.com MOTOROLA ...

Page 3

... Freescale Semiconductor, Inc. 2 Device Overview Figure 2 shows a simplified block diagram of the MC44BC375U/J/Tdevice. The MC44BC375U/J/T device has two main sections modulator section which accepts audio and video inputs and modulates the VHF carrier PLL section to synthesize the UHF/VHF output channel frequency (from an integrated UHF oscillator, divided for VHF output) The high frequency BICMOS technology permits integration of tank circuit and certain filtering functions ...

Page 4

... For proper o –65 C operation, input and output voltages should be constrained to the ranges indicated in the o 150 C Recommended Operating Conditions. 150 °C Parameter Parameter MC44BC375/U/J/T Technical Data Go to: www.freescale.com Value Unit 140 °C/W Min Typ Unit 200 500 V 4000 6000 ...

Page 5

... For More Information On This Product, Min Typ Max Unit 4.5 5.0 5 Min Typ 2 0 100 210 - - MC44BC375/U/J/T Technical Data Go to: www.freescale.com Electrical Characteristics Notes Type B All sections active A PSave/LO=LO A Max Unit Type µA A 1.5 µA A 150 µ KΩ D 300 ...

Page 6

... SFS MC44BC375U/J/T By default (open condition), all pins are “HI”. 7.1 Test Modes Pin DC level Vcc + 0.3V Low frequency testing (RF frequency divided by 4 for MC44BC375U/J, and CHS divided by 8 for MC44BC375T) Vcc + 1.1V Base band test mode (DC drive applied to modulators) PSS Vcc + 1Vbe Transient Output Inhibit Disabled ...

Page 7

... RF Inputs / Output into 75ohm Load using ohm transformation.Video Input 1V pk-pk.Audio pre-emphasis circuit engaged. MOTOROLA For More Information On This Product, Test Conditions Min -1.5 500 6.8/3.2 cbvs 90.5 cbvs Test Conditions MC44BC375/U/J/T Technical Data Go to: www.freescale.com Video Characteristics Typ Max Unit Type -0.5 — — — ...

Page 8

... Intermodulation product is at the channel frequency +1,07Mhz. Picture carrier Chroma/Sound Intermod. +1.07Mhz Fo Picture Carrier Harmonics MC44BC375/U/J/T Technical Data Go to: www.freescale.com Sound 3rd harm +11Mhz +16.5Mhz Sound carrier Chroma 2nd Harmonic +8 ...

Page 9

... Vrms on a video black level which is show below. VideoS/N is calculated log(700 / noise level in Vrms Unweighted Video Signal to Noise Video Differential Phase MC44BC375/U/J/T Technical Data Go to: www.freescale.com 3rd harmonic 3Fo Fo Fo*3/2 ...

Page 10

... TV Line Demodulated by Spectrum Analyzer-BG standard The Modulation Depth is calculated as (A-B)/A x 100 in% Picture to Sound ratio Measure in dBc sound carrier in reference to picture carrier (TVout_Ref) for “PS” bit=0 (PS=12dB typical) and for “PS” bit=1 (PS=16dB), Picture carrier Fo +5.5Mhz MC44BC375/U/J/T Technical Data Go to: www.freescale.com * 100 ...

Page 11

... TV set. In this mode the Nyquist filter is bypassed and the video carrier is used without added delay to effectuate intercarrier conversion. In this mode the phase noise information fully cancels out and the true S/N can be measured ASN × log ( MC44BC375/U/J/T Technical Data Go to: www.freescale.com Modulator Functionality ) ⁄ ( Distorsion + Noise + Signal ) ...

Page 12

... Freescale Semiconductor, Inc. Modulator Functionality 12.2 Test modes The MC44BC375U/J/T test modes are enabled by any voltage level higher than Vcc on pins CHS, PSS, SFS and VIDEO. Care must be taken in the application to not reach levels higher than Vcc on those pins. 12.3 Standby modes During standby mode, the modulator is switched to low power consumption: the sound oscillator, UHF oscillator and VHF dividers, video and sound modulator sections bias are internally turned OFF. Modulator is programmed in standby mode when pin 9 PSave/LO is set to “ ...

Page 13

... MC44BC375U MC44BC375J MC44BC375T 12.9 Selectable Pins Pins CHS, PSS, SFS are internally pulled up to 5V. MOTOROLA For More Information On This Product, Channel CH3 = 61.25Mhz CH4 = 67.25Mhz CH1 = 91.25Mhz CH2 = 97.25Mhz CH13 = 211.25Mhz MC44BC375/U/J/T Technical Data Go to: www.freescale.com Modulator Functionality VHF divider ...

Page 14

... XTAL 1.5K VCC PREM 11.8k VCC VCC 5K SPLLFLT VCC VCC 100 PLLFLT 2K 14 For More Information On This Product, 10k audio Figure 3. Pin Schematics MC44BC375/U/J/T Technical Data Go to: www.freescale.com VCC LOP VCC 50k AUDIO IN VCC TV OUT VCC 75 TVOVCC VCC VIDEO 500 10K 10K MOTOROLA ...

Page 15

... Cx is dependant on the crystal characteristics (Cx=27pF on Motorola application Board) C1 value depends on standard: 470pF is for 50µs pre-emphasis time constant (B/G standard) and 750pF is for 75µs (M/N standard). Figure 4. MC44BC375U Application Schematic MOTOROLA For More Information On This Product, MC44BC375U Application Schematic This document contains information ...

Page 16

... PLL Filter 16 SFS Sound Frequency Select 16 For More Information On This Product, Channel 3 / Channel 4 selection for MC44BC375U Channel 1 / Channel 2 selection for MC44BC375J Don’t care for the MC44BC375T PS=14dB / PS=16dB selection Logic Output Level (Low voltage / high impedance) selectable via Pin 9 Crystal Oscillator input ...

Page 17

... Bar width mils, length least four times Bar width. Bar placement may extend across chamfer and dimple areas. • 1st line: MC44BC375U for MC44BC375UD device MC44BC375J for MC44BC375JD device MC44BC375T for MC44BC375TD device (Part number coded on 10 digits) • ...

Page 18

... Maximum mold protrusion 0.15 (0.006) per 0.244 side. 0.157 Note: 5. Dimension b does not include Dambar protrusion. 0.019 Allowable Dambar protrusion shall be 0.127 (0.005) 0.009 total in excess of the b dimension at maximum material 0.050 BSC condition. 0.049 0.019 Figure 5. SO16NB Package MC44BC375/U/J/T Technical Data Go to: www.freescale.com MOTOROLA ...

Page 19

... Freescale Semiconductor, Inc. MOTOROLA For More Information On This Product, MC44BC375/U/J/T Technical Data Go to: www.freescale.com Markings and Case Diagrams 19 ...

Page 20

... Motorola and the Stylized M Logo are registered in the U.S. Patent and Trademark Office. All other product or service names are the property of their respective owners. Motorola, Inc Equal Opportunity/Affirmative Action Employer. © Motorola, Inc. 2002 MC44BC375/D For More Information On This Product, Go to: www.freescale.com ...

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