Yamaha YMF724F specifications AC3F2 Interface, Input Hold Time for Abclk

YMF724F

tCBICYC

	2.0 V
CBCLK	1.5 V
t CBIHIGH		0.8 V
	t CBILOW	t COH	t CSYLOW
t CVAL
		2.0 V
CSYNC			1.5 V
		t CSYHIGH	0.8 V
		t CSYCYC
t CVAL	t	COH
		2.0 V
CSDO		0.8 V
t CISU	t CIH
		2.0 V
CSDI		0.8 V

Fig.6: AC-link timing

4-6 AC3F2 Interface (Fig.7, 8)

Item	Symbol	Condition	Min.	Typ.	Max.	Unit
ASCLK Cycle Time	tASCCYC		-	325	-	ns
ASCLK High Time	tASCHIGH		140	-	180	ns
ASCLK Low Time	tASCLOW		140	-	180	ns
ASCLK to Signal Valid Delay	tACVAL	*14	-	-	50	ns
Output Hold Time for ASCLK	tACOH	*14	-10	-	-	ns
Input Setup Time to ASCLK	tACISU	*15	20	-	-	ns
Input Hold Time for ASCLK	tACIH	*15	10	-	-	ns
ABCLK Cycle Time	tABICYC		-	325	-	ns
ABCLK High Time	tABIHIGH		140	-	180	ns
ABCLK Low Time	tABILOW		140	-	180	ns
ABCLK to Signal Valid Delay	tASVAL	*16	-	-	50	ns
Output Hold Time for ABCLK	tASOH	*16	-10	-	-	ns
Input Setup Time to ABCLK	tASISU	*17	20	-	-	ns
Input Hold Time for ABCLK	tASIH	*17	10	-	-	ns

Note) Top = 0-70°C, PVDD=5.0 ±0.25 V, VDD5=5.0±0.25 V, VDD3=3.3±0.3 V, LVDD=3.3±0.3 V, CL=50 pF *14: This characteristic is applicable to ACS and ACDO signal.

*15:This characteristic is applicable to ACDI signal.

*16: This characteristic is applicable to ASDO and ALRCK signal.

*17: This characteristic is applicable to ASDI signal.

September 21, 1998

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