Recherchez avec le numéro de pièce ainsi que le fabricant ou la 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.
• 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.
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|---|---|---|---|---|
| 1 | NJW1503A |
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| 2 | NJW1504 |
JRC |
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| 4 | NJW1102A |
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| 5 | NJW1103 |
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| 6 | NJW1104 |
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| 7 | NJW1105 |
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| 8 | NJW1106 |
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| 9 | NJW1107 |
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| 10 | NJW1109 |
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| 11 | NJW1110 |
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