ZHCSPA1 数据表 | 德州仪器 TI.com.cn

ZHCSPA1 February 2022 DLP5531A-Q1

PRODUCTION DATA

6.7 Timing Requirements

Device electrical characteristics are over Recommended Operating Conditions unless otherwise noted

			MIN	NOM	MAX	UNIT
LPSDR
t_r	Rise slew rate ⁽¹⁾	(20% to 80%) × VDD	0.25			V/ns
t_f	Fall slew rate ⁽¹⁾	(80% to 20%) × VDD	0.25			V/ns
t_W(H)	Pulse duration LS_CLK high⁽³⁾	50% to 50% reference points	0.75			ns
t_W(L)	Pulse duration LS_CLK low⁽³⁾	50% to 50% reference points	0.75			ns
t_su	Setup time⁽³⁾	LS_WDATA valid before LS_CLK ↑ or LS_CLK ↓	1.5			ns
t_h	Hold time⁽³⁾	LS_WDATA valid after LS_CLK ↑ or LS_CLK ↓	1.5			ns
SubLVDS
t_r	Rise slew rate⁽²⁾	20% to 80% reference points	0.7	1		V/ns
t_f	Fall slew rate⁽²⁾	80% to 20% reference points	0.7	1		V/ns
t_c	Cycle time DCLK⁽³⁾		1.61	1.67		ns
t_W(H)	Pulse duration DCLK high⁽³⁾	50% to 50% reference points	0.75			ns
t_W(L)	Pulse duration DCLK low⁽³⁾	50% to 50% reference points	0.75			ns
t_WINDOW	Window time⁽³⁾ ⁽⁴⁾	Setup time + Hold time	0.3			ns
t_{LVDS-ENABLE+REFGEN}	Power-up receiver⁽⁵⁾				2000	ns

(1) Specification is for DMD_DEN_ARSTZ pin. Refer to LPSDR input rise and fall slew rate in Figure 6-2

(2) See Figure 6-3

(3) See Figure 6-4

(4) See Figure 6-5

(5) Specification is for SubLVDS receiver time only and does not take into account commanding and latency after commanding.