Cirrus-logic CS5581 Manual de usuario descargar pdf (Pagina 7)

CS5581

DS796PP1 7

3/25/08

14:34

SWITCHING CHARACTERISTICS (CONTINUED)

= -40 to +85 °C; V1+ = V2+ = +2.5 V, ±5%; V1- = V2- = -2.5 V, ±5%;

VL - VLR = 3.3 V, ±5%, 2.5 V, ±5%, or 1.8 V, ±5%

Input levels: Logic 0 = 0V = Low; Logic 1 = VD+ = High; CL = 15 pF.

11. SDO and SCLK will be high impedance when CS is high. In some systems SCLK and SDO may require pull-down

resistors.

12. SCLK = MCLK/2.

Parameter Symbol Min Typ Max Unit

Serial Port Timing in SSC Mode (SMODE = VL)

RDY

falling to MSB stable t

--2-MCLKs

Data hold time after SCLK rising t

-10-ns

Serial Clock (Out) Pulse Width (low)

(Note 11, 12) Pulse Width (high)

RDY

rising after last SCLK rising t

-8-MCLKs

MCLK

RDY

SCLK(o)

SDO

MSB MSB–1

LSB

LSB+1

Figure 1. SSC Mode - Read Timing, CS remaining low (Not to Scale)

1 2 3 4 5 6 7 8 9 10 11 12 ... 31 32

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Cirrus-logic CS5581 Manual de usuario Pagina 7