NJW1503A Datasheet, PDF (1/9 Pages) New Japan Radio – PLL Synthesizer with 3-Wire Bus for TV Tuner

NJW1503A
PLL Synthesizer with 3-Wire Bus for TV Tuner
„ DESCRIPTION
The NJW1503A is a PLL frequency synthesizer especially designed
for TV and VCR tuning systems and consists of PLL circuit and a
prescaler which operates up to 1.0GHz, built into one chip.
The NJW1503A is controlled through a 3-wire bus.
„ FEATURES
• Operating Voltage 5V
• Low Operating Current : 15mA typ. @Vcc=5V
• Prescaler accepts frequencies up to 1GHz on chip
• 3-wire bus controlled
• Reference divider ratio automatic setting (512 or 1024)
• 34V max. tuning voltage output
• Package Outline: SSOP16
„ PACKAGE OUTLINE
NJW1503AV
„ BLOCK DIAGRAM
BS0-BS3
VCC3
BAND SW
4bit
4bit
Latch
VCC1
5V GND
3Wire Bus
Receiver
CS
DAT
CLK
HF IN
1/8
CP
VCC2
PreAMP
Programmable
Divider 15bit
AMPOUT
AMP
Phase
OUT
Phase
Comp
15bit
Latch
8bit
Latch
1/1024
1/512
(1/640)
Ref
Divider
X’tal
OSC
OSCOUT
XTAL
-1-