TA1372FNG

2003-12-25

2

Block Diagram

Reference

signal mode

selection

Carrier off

mode

selection

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

Programmable

Divider

Phase

Comp.

Reference

Divider

Video Mod.

Mixer

Charge

Pump

Phase

Comp.

1/4

RFCarrier

OSC

Charge

Pump

Sound

VCO

Sound

Counter

RF

Mod.

X’tal

OSC

Clamp

White

Clip

20.8 kHz

62.5 kHz

D.GND

A.VCC

A.GND

Digital

Analog

GND

Sound PLL

loop

filter

Channel

selection

RF PLL

loop

filter

N.C.

Antnna SW

driver

output

Video

signal

input

4 MHz X’tal

or External

Reference

signal input

P/S ratio

set up

Sound

signal

input

Digital

GND

RF

signal

output

Analog

VCC

Voltage

Regulator

Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for

explanatory purpose.