DatasheetQ Logo
Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

CXA1645P/M View Datasheet(PDF) - Sony Semiconductor

Part Name
Description
Manufacturer
CXA1645P/M
Sony
Sony Semiconductor Sony
CXA1645P/M Datasheet PDF : 14 Pages
First Prev 11 12 13 14
CXA1645P/M
Description of Operation
Analog RGB signals input from Pins 2, 3 and 4 are clamped in the clamping circuit and output from Pins 23,
22 and 21, respectively.
The matrix circuit performs operations on each input signal, generating luminance signal Y and color
difference signals R-Y and B-Y. The Y signal enters the delay line to adjust delay time with the color signal C.
Then, after addition of the CSYNC signal input from Pin 10, the Y signal is output from Pin 16.
A subcarrier input from Pin 6 is input to the phase shifter, where its phase is sfited 90°. Then, the subcarrier
is input to the modulators and modulated by the R-Y signal and the B-Y signal. Modulated subcarriers are
mixed, sent to the band pass filter to eliminate higher harmonic components and finally output from Pin 15 as
the C signal. At the same time, Y and C signals are mixed and output from Pin 20 as the composite video
signal.
Burst Signal
The CXA1645P/M generates burst signals at the timing shown below according to the composite sync signal
input.
H synchronization
SYNC
IN
(TTL level)
C VIDEO
OUT
COUT
V synchronization
SYNC
IN
ODD
EVEN
tD (B) tW (B)
Burst signal
tD (B) tW (B)
C VIDEO
OUT
ODD
EVEN
Synchronizing signal
Burst signal
– 11 –
 

Share Link: 

datasheetq.com  [ Privacy Policy ]Request Datasheet ] [ Contact Us ]