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AD9878

Analog Devices
Part Number AD9878
Manufacturer Analog Devices
Description Mixed-Signal Front End
Published Jan 4, 2017
Detailed Description FEATURES Low cost 3.3 V CMOS MxFE™ for broadband applications DOCSIS, EURO-DOCSIS, DVB, DAVIC compliant 232 MHz quadratu...
Datasheet PDF File AD9878 PDF File

AD9878
AD9878


Overview
FEATURES Low cost 3.
3 V CMOS MxFE™ for broadband applications DOCSIS, EURO-DOCSIS, DVB, DAVIC compliant 232 MHz quadrature digital upconverter 12-bit direct IF DAC (TxDAC+®) Up to 65 MHz carrier frequency DDS Programmable sampling clock rates Analog Tx output level adjust Dual 12-bit, 29 MSPS direct IF ADCs with video clamp input 10-bit, 29 MSPS sampling ADC 8-bit ∑-∆ auxiliary DAC Direct interface to AD832x family of PGA cable drivers APPLICATIONS Cable set-top boxes Cable and wireless modems Mixed-Signal Front End for Broadband Applications AD9878 TxID[5:0] SDIO IF10[4:0] IF12[11:0] FLAG[2:1] FUNCTIONAL BLOCK DIAGRAM I Tx Q 16 12 SINC–1 DAC Tx DDS 4 CONTROL REGISTERS MUX 10 12 ADC ADC MUX 12 ADC Σ -∆ 3 PLL Σ-∆ OUTPUT CA PORT MCLK OSCIN IF10 INPUT MUX MUX Σ – CLAMP LEVEL IF12B INPUT VIDEO IN IF12A INPUT 03277-001 Figure 1.
GENERAL DESCRIPTION The AD9878 is a single-supply, cable modem/set-top box, mixed-signal front end.
The device contains a...


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