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HD49335NP/HNP
Rev.1.0, Feb.12.2004, page 24 of 29
Operation Sequence at Power On
V
DD
(1) Resistor transfer of TG part
(2) DLL data transfer of CDS part
(3) Reset=L of CDS part
(4) Reset=H of CDS part
(5) Other data of CDS part
: Wait more than 6clk after release the hardware Reset and then transfer
the necessary data to TG part.
: Transfer the phase data of RG, SP1, SP2, ADCLK of CDS part.
: Transfer Reset bit = 0 of address H'F2.
: Transfer Reset bit = 1 of address H'F2. (Reset release)
: Transfer the SH_SW_fsel and other PGA.
CLK_in
Hardware
Reset
3clk or more
6clk or more
(1)
2ms or more
(Charge of external C)
40,000ADCLK or more
(offset calibration)
(2) (3) (4)
CDS_Reset = Low
(5)
Note:
At 2 divided mode: ADCLK = 1/2CLK_in
At 3 divided mode: ADCLK = 1/3CLK_in
SP1
SP2
ADCLK
OBP
etc.
RESET bit
Automatic adjustment taking
40,000ADCLK period after
Reset cancellation
∗
Before transfer the Reset bit = 0, TG series pulse need to be settled, so address
H'00 to H'EF of TG part and H'F4 to H7F7 of CDS part should transfer in advance.
HD49335
serial data transfer
Must be stable within the operating
power supply voltage range
Start control
of TG and
camera DSP
A
utomatic offset
calibration
The following describes the above serial data transfer. For details of resistor settings are referred to serial data
function table.