AD9577BCPZ-R7 datasheet(15/44 Pages) AD

15 / 44 page

Data Sheet

AD9577

Rev. 0 | Page 15 of 44

CRYSTAL OSCILLATOR

Table 10.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CRYSTAL SPECIFICATION

Fundamental mode

Frequency

19.44

MHz

Reference divider, R = 1, only

ESR

Load Capacitance

Phase Noise

−135

dBc/Hz

1 kHz offset

Stability

−50

+50

ppm

REFERENCE INPUT

Table 11.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

CLOCK INPUT (REFCLK)

Input Frequency

19.44

MHz

Reference divider, R = 1

38.88

MHz

Reference divider, R = 2

Input High Voltage

2.0

Input Low Voltage

0.8

Input Current

−1.0

+1.0

μA

Input Capacitance

CONTROL PINS

Table 12.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

INPUT CHARACTERISTICS

SSCG, MAX_BW, and MARGIN

SSCG, MAX_BW, and MARGIN have a 30 kΩ internal

pull-down resistor

Logic 1 Voltage

2.0

Logic 0 Voltage

0.8

Logic 1 Current

240

μA

Logic 0 Current

μA

REFSEL

REFSEL has a 30 kΩ internal pull-up resistor

Logic 1 Voltage

2.0

Logic 0 Voltage

0.8

Logic 1 Current

μA

Logic 0 Current

240

μA

I2C DC CHARACTERISTICS

LVCMOS; the SCL and SDA pins only, see Figure 48

Input Voltage High

0.7 Vcc

Input Voltage Low

0.3 Vcc

Input Current

−10

+10

μA

VIN = 0.1 VCC or VIN = 0.9 VCC

Output Low Voltage

0.4

VOL with a load current of IOL = 3.0 mA

I2C TIMING CHARACTERISTICS

LVCMOS; the SCL and SDA pins only, see Figure 48

SCL Clock Frequency

400

kHz

SCL Pulse Width High

High, tHIGH

600

Low, tLOW

1300

Start Condition

Hold Time, tHD; STA

600

Setup Time, tSU; STA

600

Data

Setup Time, tSU; DAT

100

Hold Time, tHD; DAT

300

Stop Condition Setup Time, tSU; STO

600

Bus Free Time Between a Stop and a Start, tBUF

1300

AD9577BCPZ-R7 bảng dữ liệu(PDF) 15 Page - Analog Devices

AD9577BCPZ-R7 bảng dữ liệu(HTML) 15 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44

bảng dữ liệu tải về

Link URL