ADF4378 datasheet(9/84 Pages) AD

Part #	ADF4378

Description	Microwave Wideband Synthesizer with Integrated VCO and Deterministic General- Purpose Pulse Retimer

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Data Sheet

ADF4378

SPECIFICATIONS

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Rev. A | 9 of 84

SERIAL INTERFACE TIMING CHARACTERISTICS

V3.3V_1 = V3.3V_2 = 3.15 V to 3.45 V, VV5_VCO = VV5_CP = VV5_CAL = 4.75 V to 5.25 V, all voltages are with respect to GND, TA = −40°C to

+105°C, operating temperature range, unless otherwise noted.

Table 2. Serial Interface Timing Characteristics

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

SERIAL INTERFACE (CSB, SCLK, SDIO, SDO)

See Figure 2, Figure 3, and Figure 4

SCLK Frequency

fSCLK

MHz

SCLK Pulse Width High

tHIGH

7.6

SCLK Pulse Width Low

tLOW

7.6

SDIO Setup Time

tDS

SDIO Hold Time

tDH

SCLK Fall Edge to SDIO Valid Prop Delay

tACCESS_SDIO

7.6

SCLK Fall Edge to SDO Valid Prop Delay

tACCESS_SDO

7.6

CSB Rising Edge to SDIO High-Z

7.6

CSB Falling Edge to SCLK Rise Setup Time

SCLK Rising Edge to CSB Rise Hold Time

Timing Diagrams

Figure 2. Write Timing Diagram

Figure 3. 3-Wire Read Timing Diagram (SDO_ACTIVE = 0)

Figure 4. 4-Wire Read Timing Diagram (SDO_ACTIVE = 1)

ADF4378 Datasheet(PDF) 9 Page - Analog Devices

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