CS4630-CM データシートの表示（PDF） - Cirrus Logic

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CS4630-CM

CrystalClear™ SoundFusion® PCI Audio Accelerator

Cirrus Logic 

CS4630

AC CHARACTERISTICS (PCI SIGNAL PINS ONLY) (TA = 0° to 70° C;

PCIVDD = CRYVDD = 3.3 V; CVDD = 2.5 V; VDD5REF = 5 V; PCIGND = CGND = CRYGND = 0 V;

Logic 0 = 0 V, Logic 1 = 3.3 V; Reference levels = 1.4 V; unless otherwise noted; (Note 4))

Parameter

Switching Current High

(Note 5)

0 < Vout < 1.4

1.4 < Vout < 2.4

Symbol

IOH

Switching Current Low

Low Clamp Current

Output rise slew rate

Output fall slew rate

3.1 < Vout < 3.3

(Note 5)

Vout > 2.2

2.2 > Vout > 0.55

0.71 > Vout > 0

-5 < Vin < -1

0.4 V - 2.4 V load

(Note 6)

2.4 V - 0.4 V load

(Note 6)

IOL

ICL

slewr

slewf

Min

-44

-

95

Vout/0.023

-

1

1

Max

-

-

Note 7

-

-

Note 8

-

5

5

Unit

mA

mA

mA

mA

mA

V/ns

V/ns

Notes: 4. Specifications guaranteed by characterization and not production testing.

5. Refer to V/I curves in Figure 1. Specification does not apply to PCICLK and RST# signals. Switching

Current High specification does not apply to SERR#, PME#, and INTA# which are open drain outputs.

6. Cumulative edge rate across specified range. Rise slew rates do not apply to open drain outputs.

7. Equation A: IOH = 11.9 * (Vout - 5.25) * (Vout + 2.45) for 3.3 V > Vout > 3.1 V

8. Equation B: IOL = 78.5 * Vout * (4.4 - Vout) for 0 V < Vout < 0.71 V

voltage

3.3

Pull Up

test

point

2.4

DC

drive point

1.4

AC drive

point

-2

-44 Current (mA) -176

Equation A:

IOH = 11.9*(Vout-5.25)*(Vout+2.45)

for 3.3V > Vout > 3.1V

voltage

3.3

Pull Down

AC drive

point

2.2

DC drive

point

0.55

3, 6

test

point

95 Current (mA) 380

Equation B:

IOL = 78.5*Vout*(4.4-Vout)

for 0V < Vout < 0.71V

Figure 1. AC Characteristics

DS445PP1

5

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