ta1372fng TOSHIBA Semiconductor CORPORATION, ta1372fng Datasheet - Page 2

• Manufacturer Part Number: ta1372fng
• Description: Vhf Band Rf Modulator Ic For Vcrs And Set Top Boxes
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Block Diagram
Some of the functional blocks, circuits, or constants in the block diagram may be omitted or simplified for
explanatory purpose.
Regulator
signal mode
Voltage
Reference
selection
N.C.
16
1
Video Mod.
output
Clamp
signal
Video
signal
Mixer
White
input
Clip
RF
15
2
Antnna SW
RF PLL
output
driver
filter
loop
14
3
RFCarrier
Mod.
OSC
RF
Analog
A.V CC
A.GND
Analog
GND
V CC
13
4
Charge
Pump
2
Sound PLL
Sound
signal
input
loop
filter
12
5
Programmable
Divider
Comp.
Phase
Sound
1/4
VCO
Carrier off
selection
D.V
Digital
Counter
V
mode
Sound
11
CC
6
62.5 kHz
CC
4 MHz X’tal
signal input
or External
Reference
P/S ratio
set up
Charge
Reference
Pump
10
Divider
7
20.8 kHz
Comp.
Phase
TA1372FNG
selection
2003-12-25
D.GND
Channel
OSC
X’tal
Digital
GND
9
8