ADF4153BRUZ-RL7

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1. DESCRIPTION

The ADF4153BRUZ-RL7 is a fractional-N frequency synthesizer that implements local oscillators in the upconversion and downconversion sections of wireless receivers and transmitters. It consists of a low noise digital phase frequency detector (PFD), a precision charge pump, and a programmable reference divider. There is a Σ-Δ based fractional interpolator to allow programmable fractional-N division. The INT, FRAC, and MOD registers define an overall N divider (N = (INT + (FRAC/MOD))). In addition, the 4-bit reference counter (R counter) allows selectable REFIN frequencies at the PFD input. A complete phaselocked loop (PLL) can be implemented if the synthesizer is used with an external loop filter and a voltage controlled oscillator (VCO). A simple 3-wire interface controls all on-chip registers. The device operates with a power supply ranging from 2.7 V to 3.3 V and can be powered down when not in use.

2. FEATURES

    1. RF bandwidth to 4 GHz

    2. 2.7 V to 3.3 V power supply

    3. Separate VP allows extended tuning voltage

    4. Y version available: −40°C to +125°C

    5. Programmable fractional modulus

    6. Programmable charge pump currents

    7. 3-wire serial interface

    8. Analog and digital lock detect

    9. Power-down mode

  10. Pin-compatible with ADF4110/ADF4111/ADF4112/ADF4113 and ADF4106

  11. Consistent RF output phase

  12. Loop filter design possible with ADIsimPLL

  13. Qualified for automotive applications

3. APPLICATIONS

    1. CATV equipment

    2. Base stations for mobile radio (GSM, PCS, DCS, WiMAX, SuperCell 3G, CDMA, W-CDMA)

    3. Wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA)

    4. Wireless LANs, PMR

    5. Communications test equipment