ADRF6850BCPZ-R7 datasheet(25/36 Pages) AD

tên linh kiện	ADRF6850BCPZ-R7

Giải thích chi tiết về linh kiện	100 MHz to 1000 MHz Integrated Broadband Receiver

PDF	36 Pages

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nhà sản xuất	AD [Analog Devices]

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ADRF6850

Rev. 0 | Page 25 of 36

within a suitable range to match the specification of the follow-

on device. This is accomplished by setting Register CR29, Bit 6,

to 0, and driving Pin 7, VOCM, with the requisite external bias

voltage.

Narrow-Band and Wideband Filter Mode

By default, the second-order low-pass filter in the output buffers

of the baseband output signal paths is selected, and the baseband

outputs are in narrow-band mode. By setting Register CR29,

Bits[5:4], this filter can be set to a cutoff frequency of 50 MHz,

43 MHz, 37 MHz, or 30 MHz. By setting Register CR29, Bit 3, to 1,

this filter is bypassed and wideband mode is selected.

Table 7. Baseband Filter Settings

CR29[5:4]

Filter Cutoff Frequency (MHz)

VGA Gain Mode Polarity

The polarity of the VGA gain is set by programming Bit 2 of

gain slope is selected where VGAIN = 0 V sets the VGA gain to be 0

dB, and VGAIN = 1.5 V sets the VGA gain to be 60 dB. By setting

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