AR0330 Datasheet, PDF (20/77 Pages) ON Semiconductor – CMOS Digital Image Sensor

AR0330: 1/3-Inch CMOS Digital Image Sensor
Electrical Characteristics
Two-Wire Serial Register Interface
The electrical characteristics of the two-wire serial register interface (SCLK, SDATA) are
shown in Figure 8 and Table 14.
Figure 8: Two-Wire Serial Bus Timing Parameters
Note:
Read sequence: For an 8-bit READ, read waveforms start after WRITE command and register
address are issued.
Table 14:
Two-Wire Serial Bus Characteristics
f_{EXTCLK = 27 MHz; VDD = 1.8V; VDD_IO = 2.8V; VAA = 2.8V; VAA_PIX = 2.8V;}
VDD_PLL = 2.8V; T_A = 25°C
Standard Mode
Fast Mode
Parameter
Symbol
Min
SCLK Clock Frequency
f_SCL
0
Hold time (repeated) START condition
After this period, the first clock pulse is
t_HD;STA
4.0
generated
LOW period of the SCLK clock
t_LOW
4.7
HIGH period of the SCLK clock
t_HIGH
4.0
Set-up time for a repeated START
t_SU;STA
4.7
condition
Data hold time
t_HD;DAT
0⁴
Data set-up time
t_SU;DAT
250
Rise time of both SDATA and SCLK signals
t_r
-
Fall time of both SDATA and SCLK signals
t_f
-
Set-up time for STOP condition
t_SU;STO
4.0
Bus free time between a STOP and START
t_BUF
4.7
condition
Capacitive load for each bus line
Cb
-
Serial interface input pin capacitance
CIN_SI
-
SDATA max load capacitance
CLOAD_SD
-
SDATA pull-up resistor
RSD
1.5
Max
Min
Max
Unit
100
0
400
KHz
-
0.6
-
s
-
1.3
-
s
-
0.6
-
s
-
0.6
-
s
3.45⁵
-
0⁶
100⁶
0.9⁵
s
-
ns
1000
20 + 0.1Cb⁷
300
ns
300
20 + 0.1Cb⁷
300
ns
-
0.6
-
s
-
1.3
-
s
400
-
400
pF
3.3
-
3.3
pF
30
-
30
pF
4.7
1.5
4.7
K
Notes:
1. This table is based on I²C standard (v2.1 January 2000). Philips Semiconductor.
2. Two-wire control is I²C-compatible.
3. All values referred to V_IHmin = 0.9 VDD and V_ILmax = 0.1VDD levels. Sensor EXCLK = 27 MHz.
AR0330_DS Rev. U Pub. 4/15 EN
20
©Semiconductor Components Industries, LLC,2015.