cxd1159aq Sony Electronics, cxd1159aq Datasheet - Page 5

• Manufacturer Part Number: cxd1159aq
• Description: Sync Signal Generator For Camera
• Manufacturer: Sony Electronics

Functions
1. Generation of various sync signals (See the Timing Chart.)
Various sync signals are generated from clocks.
• Clock frequencies
2. PAL PLL for 4fsc
To the master clock of 908f
according to the type of external filter (passive or active).
3. SC (Sub-Carrier) generation
In either mode unused counters are stopped. When SC is not required, by setting SCOF to L all SC counters
are stopped and SC is not output.
4. Initialization and Reset
In INT mode the circuit is initialized with the fall of VINT. At that time, H, V and LALT resets are not accepted.
In EXT mode, VINT is not accepted, whereas H, V and LALT resets are accepted.
Passive
Active
NTSC
NTSC
Mode
PAL
NTSC: 910f
PAL:
For the system clock
NTSC: 910f
PAL:
Filter
908f
4fsc (17.734475MHz)
908f
INT or EXT
H
H
H
H
/7
/7 or 6
(14.31818MHz)
(14.1875MHz)
EXT
INT
x
PSEL
H
L
H
is matched a phase of 4fsc. The polarity of the phase comparator can be switched
Master
(908f
Slow
Slow
Fast
Fast
910f
4fsc/4
4fsc/4
SC
H
)
H
/4
Delay
Delay
Fast
Fast
4fsc
– 5 –
INT: Internal mode
(EXT = L)
EXT: External mode
(EXT = H)
COMP
H
H
L
L
CXD1159AQ