HMC832
HMC832 is Fractional-N PLL manufactured by Analog Devices.
FEATURES
RF bandwidth: 25 MHz to 3000 MHz 3.3 V supply Maximum phase detector rate: 100 MHz Ultralow phase noise
- 110 d Bc/Hz in band, typical Fractional figure of merit (FOM):
- 226 d Bc/Hz 24-bit step size, resolution 3 Hz typical Exact frequency mode with 0 Hz frequency error Fast frequency hopping 40-lead 6 mm × 6 mm SMT package: 36 mm2
APPLICATIONS
Cellular infrastructure Microwave radio Wi Max, Wi Fi munications test equipment CATV equipment DDS replacement Military Tunable reference source for spurious-free performance
GENERAL DESCRIPTION
The HMC832 is a 3.3 V, high performance, wideband, fractional-N, phase-locked loop (PLL) that features an integrated voltage controlled oscillator (VCO) with a fundamental frequency of 1500 MHz to 3000 MHz, and an integrated VCO output divider (divide by 1/2/4/6/…60/62), that enables the HMC832 to generate continuous frequencies from 25 MHz to 3000 MHz. The integrated phase detector (PD) and delta-sigma (Δ-Σ) modulator, capable of operating at up to 100 MHz, permit wider loop bandwidths and faster frequency tuning with excellent spectral performance.
Industry leading phase noise and spurious performance, across all frequencies, enable the HMC832 to minimize blocker effects, and to improve receiver sensitivity and transmitter spectral purity. A low noise floor (- 160 d Bc/Hz) eliminates any contribution to modulator/mixer noise floor in transmitter applications.
FUNCTIONAL BLOCK DIAGRAM
LD/SDO SCK SDI
LOCK DETECT
CONTROL
MODULATOR CAL
SPI PROGRAMMING
INTERFACE
EN ÷1, 2, 4, 6, ...62
SEN RF_P RF_N
÷N CP CP PFD
÷R
VCO VTUNE
XREFP
Figure 1.
12827-001
The HMC832 is footprint-patible to the market leading HMC830 PLL with integrated VCO. It features
3.3 V supply and an innovative programmable performance technology that enables the HMC832 to tailor current consumption and corresponding noise floor performance to individual applications by selecting either a low current consumption mode or a high performance mode for...