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CDCE72010RGCT датащи(PDF) 52 Page - Texas Instruments |
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CDCE72010RGCT датащи(HTML) 52 Page - Texas Instruments |
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52 / 73 page ![]() PHASE DELAY FOR M AND N Delay Block in M/N Path CDCE72010 SCAS858A – JUNE 2008 – REVISED JULY 2009.............................................................................................................................................................. www.ti.com Table 11. Reference Delay M (PRI_REF or SEC_REF) and Feedback Delay N (VCXO) Phase Adjustment (Register 2 RAM Bits [5:0]) (1) DLYM2/DLYN2 DLYM1/DLYN1 DLYM0/DLYN0 PHASE OFFSET 0 0 0 0ps(2) 0 0 1 ±160ps 0 1 0 ±320ps 0 1 1 ±480ps 1 0 0 ±830ps 1 0 1 ±1130ps 1 1 0 ±1450ps 1 1 1 ±1750ps (1) If Progr Delay M is set, all Yx outputs are lagging to the Reference Clock according to the value set. If Progr Delay N is set, all Yx outputs are leading to the Reference Clock according to the value set. Above are typical values at VCC = 3.3 V, TA = 25°C, PECL-output relate to Div4 mode. (2) Default Table 12. Reference Divider M/N 14-Bit (Register 10 RAM Bits [13:0] for M and RAM Bits [27:14] for N) N13 N12 N11 N10 N9 N8 N7 N6 N5 N4 N3 N2 N1 N0 DIV BY(1) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 1 0 3 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4 • • • 0 0 0 0 0 0 0 1 1 1 1 1 1 1 128(2) • • • 1 1 1 1 1 1 1 1 1 1 1 1 0 1 16382 1 1 1 1 1 1 1 1 1 1 1 1 1 0 16383 1 1 1 1 1 1 1 1 1 1 1 1 1 1 16384 (1) If the divider value is Q, then the code will be the binary value of (Q - 1). (2) Default 52 Submit Documentation Feedback Copyright © 2008–2009, Texas Instruments Incorporated Product Folder Link(s): CDCE72010 |
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