Technical Data
MC44BS373CA
Rev. 2.6, 6/2004
MC44BS373CA
Data Sheet
MC44BS373CA
PLL-Tuned UHF and VHF
Audio/Video High-Integration
Modulator
SO16NB Package
QFN20 Package
Ordering Information
Device
Temp Range
–20 to +85°C
–20 to +85°C
Package
MC44BS373CAD,R2
MC44BS373CAFC,R2
SO16NB
QFN20
Lead Free
MC44BS373CAEF,R2
–20 to +85°C
SO16NB
Lead Free
NOTE: For tape and reel, add R2 suffix.
Contents
The MC44BS373CA audio and video modulator is for use in VCRs, set-top boxes, and
similar devices.
1
2
Features . . . . . . . . . . . . . . . . . . . . . . 2
Comparing the MC44BS373CA to the
MC44BC373/4C. . . . . . . . . . . . . . . . . 2
•
•
•
Supports multiple standards
3
4
5
6
7
8
9
Pin Descriptions. . . . . . . . . . . . . . . . . 3
MC44BS373CA Functional Overview 5
Maximum Ratings . . . . . . . . . . . . . . . 6
Thermal Ratings . . . . . . . . . . . . . . . . 6
Electrostatic Discharge . . . . . . . . . . . 7
Electrical Characteristics . . . . . . . . . . 7
I2C Bit Mapping. . . . . . . . . . . . . . . . . 8
TV output level 82 dBµV typical
2
5- and 3.3-V compatible I C bus
Figure 1 shows the pin connections for both package options.
10 I2C Programming . . . . . . . . . . . . . . 10
11 Modulator High-Frequency
Characteristics. . . . . . . . . . . . . . . . . 13
12 Video Characteristics. . . . . . . . . . . . 14
13 Audio Characteristics. . . . . . . . . . . . 16
GNDD
20 19 18 17 16
SCL
SDA
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1
LOP
CAS
15
14
TVOVCC
TVOUT
14 Characterization Measurement
Conditions . . . . . . . . . . . . . . . . . . . . 17
VCCD
2
3
4
5
PLLFLT
LOP
15 MC44BS373CA Modes of Operation 22
16 High Speed I2C Compatible Bus. . . 27
17 Pin Circuit Schematics. . . . . . . . . . . 31
18 Application Diagrams. . . . . . . . . . . . 32
NC
13
12
11
XTAL
GND
XTAL
TVOVCC
TVOUT
GND
GND
PREEM
AUDIO
GND
NC
19 MC44BS373CA Evaluation Board
Schematic and Layout . . . . . . . . . . . 36
PREEM
6
7
8
9
10
VCCA
20 Packaging Instructions . . . . . . . . . . 41
21 Marking Instructions . . . . . . . . . . . . 42
22 Case Outlines . . . . . . . . . . . . . . . . . 43
23 Document Revision History . . . . . . . 48
VIDEO
SPLLFLT
SO16NB Package
QFN20 Package
Figure 1. MC44BS373CA Pin Connections