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Numéro de référence | NJW1508 | ||
Description | (NJW1504 / NJW1508) Others / SSOP16 | ||
Fabricant | JRC | ||
Logo | |||
1 Page
NJW1504/1508
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PLL Synthesizer with I2C Bus for TV Tuner
n DESCRIPTION
The NJW1504/1508 are 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 NJW1504/1508 are controlled through an I2C-bus.
n FEATURES
• Operating Voltage 5V
• Low Operating Current : 15mA typ. @Vcc=5V
• Prescaler accepts frequencies up to 1GHz on chip
• Reference Signal :
NJW1504: Reference Signal Oscillator with peripheral of Xtal on chip
NJW1508: Buffer Amplifier for External Reference Signal on chip
• 34V max. tuning voltage output
• Package Outline: SSOP16
n PACKAGE OUTLINE
NJW1504V/NJW1508V
n BLOCK DIAGRAM
BS0-BS3
VCC3
VCC1
5V GND
BAND SW
4bit
4bit
Latch
I2C
BRuesceive
r
HF IN
CP
VCC2
PreAMP
1/8
Programmable
Divider 15bit
AMPOUT
AMP
Phase
OUT
Phase
Comp.
15bit
Latch
8bit
Latch
1/1024
1/512
(1/640)
Ref.
Divider
X’tal
OSC
ADRS
SDA
SCL
OSCOUT
XTAL
(Note)
Purchase of I2C components of New Japan RadioCo.,Ltd or one of its sublicensed Associated Companies conveys a license
under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C
standard specification as definedby by Philips.
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Pages | Pages 10 | ||
Télécharger | [ NJW1508 ] |
No | Description détaillée | Fabricant |
NJW1503A | Others / SSOP16 | JRC |
NJW1504 | (NJW1504 / NJW1508) Others / SSOP16 | JRC |
NJW1508 | (NJW1504 / NJW1508) Others / SSOP16 | JRC |
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