Freescale Semiconductor, Inc.
Advance Information
MC44BS374T1/374T1A
Rev. 1.2 11/2003
MC44BS374T1
PLL Tuned UHF and
VHF Audio/Video High
Integration Modulator
MC44BS374T1A
SO16NB Package
Ordering Information
Device
Temp Range
0°C to +70°C
0°C to +70°C
Package
SO16NB
SO16NB
MC44BS374T1D,R2
MC44BS374T1AD,R2
NOTE: For tape and reel, add R2 suffix.
Contents
The MC44BS374T1 and MC44BS374T1A audio and video modulator are for use in VCRs,
1Features . . . . . . . . . . . . . . 2 set-top boxes, and similar devices. These products are the next generation of the
Comparing the
MC44BS374T1/374T1A to
the MC44BC374T1 . . . . . 2
MC44BC374T1 with the following new features:
•
TV output level 82dBuV typical for the MC44BS374T1A, 75 dBuV for the
MC44BS374T1
Pin Descriptions . . . . . . . . 3
Functional Overview . . . . . 4
Maximum Ratings . . . . . . . 5
Thermal Ratings . . . . . . . . . 5
Electrostatic Discharge . . . 5
Electrical Characteristics . 6
I2C Bit Mapping . . . . . . . . . 7
I2C Programming . . . . . . . . 8
•
•
5V and 3.3V compatible I2C bus
Logic Output Port pin (pin 3) available
Figure 1 shows the pin connections.
Modulator High Frequency
Characteristics . . . . . . 10
Video Characteristics . . . 11
Audio Characteristics . . . 13
Characterization
Measurement Conditions
14
GNDD
VCCD
SCL
SDA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Modes of Operation . . . . . 20
High Speed I2C Compatible
Bus . . . . . . . . . . . . . . . . 24
PLLFLT
LOP
XTAL
TVOVCC
TVOUT
GND
Pin Circuit Schematics . . 27
Application Diagrams . . . 28
GND
Evaluation Board Schematic
and Layout . . . . . . . . . . 29
PREEM
AUDIO
VCCA
Packaging Instructions . . 31
Marking Instructions31
VIDEO
SPLFLT
SO16 pin package
Figure 1. MC44BS374T1 and MC44BS374T1A Pin Connections
This document contains information on a product under development. Freescale reserves the right to change or
discontinue this product without notice. © Motorola, Inc., 2003. All rights reserved.
For More Information On This Product,
Go to: www.freescale.com