ADF4206
ObsoleteDual, Integer-N 0.5 GHz / 0.5 GHz PLL
Part Details
- ADF4206: 550 MHz/550 MHz
- ADF4208: 2.0 GHz/1.1 GHz
- 2.7 V to 5.5 V Power Supply
- Selectable Charge Pump Supply (VP) Allows Extended Tuning Voltage in 3 V Systems
- Selectable Charge Pump Currents
- On-Chip Oscillator Circuit
- Selectable Dual Modulus Prescaler
- RF2: 32/33 or 64/65
- RF1: 32/33 or 64/65
- 3-Wire Serial Interface
- Power-Down Mode
The ADF4206/ADF4208 is a dual frequency synthesizer which can be used to implement local oscillators in the up-conversion and down-conversion sections of wireless receivers and transmitters. They consist of a low-noise digital PFD (Phase Frequency Detector), a precision charge pump, a programmable reference divider, programmable A and B counters and a dual-modulus prescaler (P/P+1). The A (6-bit) and B (11- bit) counters, in conjunction with the dual modulus prescaler (P/P+1), implement an N divider (N= BP+A). In addition, the 14-bit reference counter (R Counter), allows selectable REFIN frequencies at the PFD input. A complete PLL (Phase-Locked Loop) can be implemented if the synthesizers are used with an external loop filter and VCO's (Voltage Controlled Oscillators).
Note: The ADF4207 mentioned in the data sheet is an obsolete part.
Documentation
Data Sheet 1
Application Note 2
Frequently Asked Question 1
Analog Dialogue 3
Webcast 2
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Frequency Dividers, Prescalers, and Counters 1 | ||
| ADF5001 | PRODUCTION | 4 GHz TO 18 GHz Divide-by-4 Prescaler |
| I/Q Demodulators 1 | ||
| ADL5380 | RECOMMENDED FOR NEW DESIGNS | 400 MHz TO 6000 MHz Quadrature Demodulator |
| I/Q Modulators 1 | ||
| ADL5375 | PRODUCTION | 400 MHz TO 6 GHz Broadband Quadrature Modulator |
| Internal Power Switch Boost Regulators 1 | ||
| ADP1613 | PRODUCTION | 650 kHz /1.3 MHz Step-Up PWM DC-to-DC Switching Converter with 2.0 A Current Limit |
| Positive Linear Regulators (LDO) 3 | ||
| ADP151 | PRODUCTION | Ultralow Noise, 200 mA, CMOS Linear Regulator |
| ADP150 | PRODUCTION | Ultralow Noise, 150 mA CMOS Linear Regulator |
| ADP3334 | NOT RECOMMENDED FOR NEW DESIGNS | High Accuracy Low IQ, 500 mA anyCAP® Adjustable Low Dropout Regulator |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 1 | ||
| OP184 | PRODUCTION | Single-Supply Rail-to-Rail Input/Output Operational Amplifier |
| Single, Double, and Triple Balanced Mixers 2 | ||
| ADL5801 | RECOMMENDED FOR NEW DESIGNS | High IP3, 10 MHz TO 6 GHz, Active Mixer |
| ADL5802 | RECOMMENDED FOR NEW DESIGNS | Dual Channel High IP3 100 MHz TO 6 GHz Active Mixer |
Tools & Simulations
ADIsimPLL™
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Open ToolADIsimRF
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Open ToolLatest Discussions
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