Datasheet > AD9574BCPZ

AD9574BCPZ

更新时间： 2022-02-26 12:14:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
35页	873K
描述
Ethernet/Gigabit Ethernet Clock Generator

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数据手册

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AD9574BCPZ 数据手册

Data Sheet

AD9574

REFERENCE SWITCHOVER OUTPUT DISTURBANCE

Typical is given for V_S= 3.3 V 10%, T_A= 25°C, unless otherwise noted. Minimum and maximum values are given over full V_Sand T_A

(−40°C to +85°C) variation.

Table 12.

Parameter

Min Typ Max Unit

Test Conditions/Comments

INSTANTANEOUS FREQUENCY (dθ/dt) DISTURBANCE

DUE TO REFERENCE SWITCHOVER

250 500

ppm pk Applies only to PLL outputs; 1 ppm frequency

offset between the REF0 and REF1 channels

INSTANTANEOUS PHASE DISTURBANCE DUE TO

REFERENCE SWITCHOVER

220

Applies to OUT0 and OUT1 with OUT0 ×2 multiplier

bypassed

CONTROL PINS

Typical is given for V_S= 3.3 V 10%, T_A= 25°C, unless otherwise noted. Minimum and maximum values are given over full V_Sand T_A

(−40°C to +85°C) variation.

Table 13.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

INPUT CHARACTERISTICS

REF_SEL Pin

Internal 30 kΩ pull-down resistor

Logic 1 Voltage (V_IH)

Logic 0 Voltage (V_IL)

Logic 1 Current (I_IH)

Logic 0 Current (I_IL)

RESET Pin

2.0

0.8

150

µA

V_IH= V_DD

V_IL= GND

Internal 30 kΩ pull-up resistor

Logic 1 Voltage (V_IH)

Logic 0 Voltage (V_IL)

Logic 1 Current (I_IH)

Logic 0 Current (I_IL)

REFMON Pin

2.0

0.8

350

µA

V_IH= V_DD

V_IL= GND

Do not float this pin or toggle it during device

operation; connect to a static Logic 0 or Logic 1

Logic 1 Voltage (V_IH)

Logic 0 Voltage (V_IL)

Logic 1 Current (I_IH)

Logic 0 Current (I_IL)

PPR0 to PPR6 Pins

PPRx State 0

V_DD– 0.5

0.5

150

µA

V_IH= V_DD

V_IL= GND

Maximum resistor tolerance = 10%

Pull-down to GND

Pull-up to V_DD

820

Ω

PPRx State 1

1800

3900

8200

820

PPRx State 2

PPRx State 3

PPRx State 4

PPRx State 5

1800

3900

8200

Pull-up to V_DD

PPRx State 6

Pull-up to V_DD

PPRx State 7

Pull-up to V_DD

Rev. B | Page 9 of 35

1...6 7 8910 11 12...35

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