CRD44800-ST-FB 데이터 시트보기 (PDF) - Cirrus Logic

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CRD44800-ST-FB

6-Channel Digital Amplifier Controller

Cirrus Logic 

SWITCHING CHARACTERISTICS - SYS_CLK

(VD = 2.5 V, VDP = VLC = VDX = 3.3 V, VLS = 2.5 V to 5.0 V, Cload = 50 pF)

Parameter

SYS_CLK Period

SYS_CLK Duty Cycle

Symbol

Min

Typ

tsclki

18.518

---

45

50

SYS_CLK

tsclki

Figure 3. SYS_CLK Timings

CS44600

Max

Unit

---

ns

55

%

SWITCHING CHARACTERISTICS - PWMOUTA1-B3

(VD = 2.5 V, VLS = VLC = VDX = 3.3 V, VDP = 3.3 V to 5.0 V unless otherwise specified, Cload = 10 pF)

Parameter

Symbol

Min

Typ

Max

Unit

PWMOUTxx Period

Rise Time of PWMOUTxx

tpwm

2.60

-

1.18

µs

VDP = 5.0 V tr

-

1.6

-

ns

VDP = 3.3 V

-

2.1

-

ns

Fall Time of PWMOUTxx

VDP = 5.0 V tf

-

1.1

-

ns

VDP = 3.3 V

-

1.4

-

ns

tr

tf

PWMOUTxx

tpwm

Figure 4. PWMOUTxx Timings

SWITCHING CHARACTERISTICS - PS_SYNC

(VD = 2.5 V, VLS = VLC = VDX = 3.3 V, VDP = 3.3 V to 5.0 V, Cload = 20 pF)

Parameter

PS_SYNC Period

PS_SYNC Duty Cycle

Symbol

Min

Typ

tpsclki

592.576

---

45

50

PS_SYNC

Max

Unit

---

ns

55

%

tpsclki

Figure 5. PS_SYNC Timings

12

DS633F1

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