MC44BC375U Datasheet, PDF (2/16 Pages) Freescale Semiconductor, Inc – PLL Tuned VHF (Channel 3 / 4)Audio / Video Modulator

PIN DESCRIPTIONS
CHS
1
PSS
2
LOP
3
XTAL
4
GND
5
PREEM
6
AUDIO
7
SPLFLT
8
16
SFS
15
PLLFLT
14
TVOV_CC
13
TVOUT
12
GND
11
V_CCA
10
VIDEO
9
PSave/LO
SOIC16 pin package
Figure 1. Pin Connections
Table 1. Package Pin Descriptions
Pin
number
Pin Name
Description
1
CHS
Channel select (Low = channel 4, High = channel 3)
2
PSS
Picture-to-Sound ratio select (Low = 14 dB, High = 16 dB)
3
LOP
Logical output port controlled by pin 9
4
XTAL
Crystal / oscillator input
5
GND
Ground
6
PREEMP
Pre-emphasis capacitor
7
AUDIO_IN
Audio input
8
SPLFLT
Sound PLL loop filter
9
PSAVE/LO Power save mode and LO control
10
VIDEO_IN
Video input
11
V_CC
Main analog supply voltage
12
GND
Analog ground
13
RF_OUT
RF output signal
14
RFOV_CC
RFoutput stage supply voltage
15
PLLFLT
RF PLL loop filter
16
SFS
Sound frequency select (Low = 5.5 MHz, High = MHz 4.5 MHz)
MC44BC375U
2
Application Specific Products
Freescale Semiconductor