TRF3765 Texas instruments

TRF3765

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TRF3765

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Описание

The TRF3765 is a wideband Integer-N/Fractional-N frequency synthesizer with an integrated, wideband voltage-controlled oscillator (VCO). Programmable output dividers enable continuous frequency coverage from 300 MHz to 4.8 GHz. Four separate differential, open-collector RF outputs allow multiple devices to be driven in parallel without the need of external splitters. The TRF3765 also accepts external VCO input signals and allows on/off control through a programmable control output. For maximum flexibility and wide reference frequency range, wide-range divide ratio settings are programmable and an off-chip loop filter can be used. The TRF3765 is available in an RHB-32 QFN package.

Output Frequencies: 300 MHz to 4.8 GHz
Low-Noise VCO: –133 dBc/Hz
(1-MHz Offset, f_OUT = 2.65 GHz)
13-/16-Bit Reference/Feedback Divider
25-Bit Fractional-N and Integer-N PLL
Low RMS Jitter: 0.35 ps
Input Reference Frequency Range:
0.5 MHz to 350 MHz
Programmable Output Divide-by-1/-2/-4/-8
Four Differential LO Outputs
External VCO Input with Programmable VCO
On/Off Control

Integrated VCO	Yes
Output frequency (min) (MHz)	300
Output frequency (max) (MHz)	4800
Normalized PLL phase noise (dBc/Hz)	-221
Current consumption (mA)	115
Features	Wideband
1/f noise (10-kHz offset at 1-GHz carrier) (dBc/Hz)	-106
Rating	Catalog
Operating temperature range (°C)	-40 to 85
Lock time (µs) (typ)	60