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SA7025

Features: • Operation up to 1.04GHz• Fast locking by Fractional-N divider• Auxiliary synthesizer• Digital phase comparator with proportional and integral charge pump output• High speed serial input• Low power consumption• Programmable charge pump current...

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SeekIC No. : 004483795 Detail

SA7025: Features: • Operation up to 1.04GHz• Fast locking by Fractional-N divider• Auxiliary synthesizer• Digital phase comparator with proportional and integral charge pump output...

SA7025 Data Sheet

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Part Number:
SA7025
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• Operation up to 1.04GHz
• Fast locking by "Fractional-N" divider
• Auxiliary synthesizer
• Digital phase comparator with proportional and integral charge pump output
• High speed serial input
• Low power consumption
• Programmable charge pump currents
• Supply voltage range 2.7 to 5.5V
• Excellent input sensitivity: VRF_IN = 20dBm


Application

• NADC (North American Digital Cellular)
• PDC (Personal Digital Cellular)
• Cellular radio
• Spread-spectrum receivers


Pinout

Connection Diagram


Specifications

SYMBOL PARAMETER RATING UNITS
V Supply voltage, VDD, VDDA, VCCP -0.3 to +6.0 V
VIN Voltage applied to any other pin -0.3 to (VDD + 0.3) V
TSTG Storage temperature range -65 to +150 °C
TA Operating ambient temperature range -40 to +85 °C

NOTE: Thermal impedance (JA) = 117°C/W. This device is ESD sensitive.


Description

The SA7025 is a monolithic low power, high performance dual frequency synthesizer fabricated in QUBiC BiCMOS technology. Featuring Fractional-N division with selectable modulo 5 or 8 implemented in the Main synthesizer to allow the phase detector comparison frequency to be five or eight times the channel spacing. SA7025 feature reduces the overall division ratio yielding a lower noise floor and faster channel switching. The phase detectors and charge pumps are designed to achieve phase detector comparison frequencies up to 5MHz. A triple modulus prescaler (divide by 64/65/72) is integrated on chip with a maximum input frequency of 1.04GHz. Programming and channel selection of SA7025 are realized by a high speed 3-wire serial interface.




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