Atmel AT85DVK-07 Especificaciones descargar pdf (Pagina 253)

AT85C51SND3Bx

7632A–MP3–03/06

Audio DAC Interface

Definition of symbols Table 272. Audio DAC Interface Timing Symbol Definitions

Timings Table 273. Audio Interface AC timings

= 1.65 to 3.6 V; T

= -40 to +85°C, CL ≤ 30pF

Note: 1. 32-bit format with Fs= 48 KHz.

Waveforms Figure 149. Audio Interface Waveforms

External Clock Interface

Definition of symbols Table 274. External Clock Timing Symbol Definitions

Signals Conditions

C Clock H High

O Data Out L Low

S Data Select V Valid

X No Longer Valid

Symbol Parameter Min Max Unit

CHCH

Clock Period 325.5

(1)

CHCX

Clock High Time 30 ns

CLCX

Clock Low Time 30 ns

CLCH

Clock Rise Time 10 ns

CHCL

Clock Fall Time 10 ns

CLSV

Clock Low to Select Valid 10 ns

CLOV

Clock Low to Data Valid 10 ns

CLK

CHCH

CLCX

CHCX

CLCH

CHCL

DSEL

DAT

Right Left

CLSV

CLOV

Signals Conditions

C Clock H High

L Low

X No Longer Valid

1 2 ... 248 249 250 251 252 253 254 255 256 257 258 ... 262 263

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