HMC700LP4 8 GHz 16-bit Fractional-N PLL with Sweeper
The HMC701LP6CE is a SiGe BiCMOS fractional-N frequency synthesizer. The synthesizer includes a 8GHz 16-bit RF N-Divider, a 24-bit delta-sigma modulator, a very low noise digital phase frequency detector (PFD), and a precision controlled charge pump. In addition the synthesizer supports an external step tuned VCO. The fractional synthesizer features an advanced delta-sigma modulator design that allows ultra-fine frequency step sizes. The synthesizer features the ability to alter both the phase-frequency detector (PFD) gain and the cycle slipping characteristics of the PFD. This feature can reduce the time to arrive at the new frequency by 50% vs. conventional PFDs. Ultra low in-close phase noise also allows wider loop bandwidths for faster frequency hopping. The synthesizer contains a built-in linear sweeper function, which allows it to perform frequency chirps with a wide variety of sweep times, polarities and dwells, all with an external or automatic sweep trigger. A General Purpose Output (GPO) bus supports the use of multiple VCOs. In addition the synthesizer has a number of auxiliary clock generation modes that can be accessed via the GPO.
技术特性
- Ultra Low SSB Phase Noise Floor:
-153 dBc/Hz @ 10 kHz offset @ 100 MHz
- Reference Frequency.
- Programmable Divider (N= 16 - 516)
Operating up to 7 GHz
- Open Collector Output Buffer Amplifiers for
Interfacing w/ Op-Amp Based Loop Filter
- Reversible Polarity PFD w/ Lock Detect Output
- 32 Lead 5x5mm SMT Package: 25mm
应用领域 APPLICATION
- Base Stations for Mobile Radio
(GSM, PCS, DCS, CDMA, WCDMA)
- Wireless LANs, WiMax
- Communications Test Equipment
- CATV Equipment
- FMCW Sensors
- Automotive Radar
- Phased-Array Systems
|
技术指标
| Freq. (GHz) |
Function |
Max. PFD Freq. (MHz) |
Figure of Merit (Fract/Int) (dBc/Hz) |
Freq. Res. (Hz) |
Bias Supply |
Package |
| 10 kHz - 8 GHz |
Fractional-N with Sweeper |
75 |
-221 / -227 |
3 |
+5V @ 37mA
+3.3V @ 90mA |
LP6C |
订购信息 Ordering Information
功能框图 Functional Block Diagram
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