ASX340AT_16 Datasheet, PDF (50/54 Pages) ON Semiconductor – 1/4‐inch Color CMOS NTSC/PAL Digital Image SOC

ASX340AT
M
O
N
P
P
Figure 53. V Pulse
TABLE 49. V PULSE: SPECIFICATION FROM REC. ITU-R BT.470-6
Parameter
Signal
NTSC (27 MHz)
M
H/2 Period
31.778
N
Pulse width
27.10 (nominal)
O
V pulse interval
4.70 ± 0.10
P
Pulse rising/falling edge
30.25
Two-Wire Serial Bus Timing
Figure 49 and Table 48 describe the timing for the
two-wire serial interface.
PAL (27 MHz)
32.00
27.30 ± 0.10
4.70 ± 0.10
0.25 ± 0.05
Units
ms
ms
ms
ms
SDATA
tf
SCLK
S
tLOW
tr
tSU;DAT
tf
tHD;STA
tr
tBUF
tHD;STA
tHD;DAT
tHIGH
tSU;STA
Sr
tSU;STO
P
S
Figure 54. Two-Wire Serial Bus Timing Parameters
TABLE 50. TWO-WIRE SERIAL BUS CHARACTERISTICS
(f_EXTCLK = 27 MHz; VDD = 1.8 V; VDD_IO = 2.8 V; VAA = 2.8 V; VAA_PIX = 2.8 V;
VDD_PLL = 2.8 V; VDD_DAC = 2.8 V; T_A = 25°C)
Standard Mode
Fast Mode
Parameter
Symbol
Min
Max
Min
Max
SCLK Clock Frequency
f_SCL
0
100
0
400
Hold time (repeated) START
condition.
Units
KHz
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