Cirrus-logic CS44600 Instrukcja Użytkownika Pobierz pdf (Strona 12)

12 DS633F1

CS44600

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)

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)

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 Symbol Min Typ Max Unit

SYS_CLK Period t

sclki

18.518 --- --- ns

SYS_CLK Duty Cycle 45 50 55 %

Parameter Symbol Min Typ Max Unit

PWMOUTxx Period t

pwm

2.60 - 1.18 µs

Rise Time of PWMOUTxx VDP = 5.0 V

VDP = 3.3 V

1.6

2.1

Fall Time of PWMOUTxx VDP = 5.0 V

VDP = 3.3 V

1.1

1.4

Parameter Symbol Min Typ Max Unit

PS_SYNC Period t

psclki

592.576 --- --- ns

PS_SYNC Duty Cycle 45 50 55 %

SYS_CLK

sclki

Figure 3. SYS_CLK Timings

PWMOUTxx

pwm

Figure 4. PWMOUTxx Timings

PS_SYNC

psclki

Figure 5. PS_SYNC Timings

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 75 76

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Cirrus-logic CS44600 Instrukcja Użytkownika Strona 12