MC44BC374 MOTOROLA [Motorola, Inc], MC44BC374 Datasheet - Page 22

• Manufacturer Part Number: MC44BC374
• Description: PLL Tuned PAL/NTSC UHF and VHF Audio/ Video High Integration Modulator IC
• Manufacturer: MOTOROLA [Motorola, Inc]

Application and Case Diagrams
16 Application and Case Diagrams
16.1 Proposed BiCMOS Modulator Application
22
Note 1: Cx value depends on crystal characteristics; Cx = 27pF on Motorola application board.
Note 2: Loop Filter components must be as close as possible to pins 14 and 15
Note 3: The 220K pull down resistor set the STBY pin “open” condition to “standby mode”.
Hi/Lo
100nF
Pre-em
If not connected, the “open” condition is “normal mode”
Audio
This document contains information on a new product under development. Motorola reserves the right to change
or discontinue this product without notice.
4MHz
O
22nF
220K
Note 3
Figure 7. Proposed MC44BC374T1 Application Schematic
470pF
Note 1
220nF
SDA
O
Cx
15K
SCL
MC44BC374T1 Technical Data
O
SCL
SDA
STBY
XTAL
GND
PREEM
AUDIO
SPLLFLT
1
2
3
4
5
6
7
8
TVOVCC
PLLFLT
16
15
14
13
12
11
10
TVOUT
9
VIDEO
GNDD
VCCD
VCCA
GND
10nF
Vcc
10nF
O
75
Video
1nF
O
22nF
Note 2
Vcc
O
2.2k
47nF
100nF
10nF
O
TVOUT
MOTOROLA