CXA2050S
Pin
No.
Symbol
Equivalent circuit
Description
20p
6k
SECAM decoder interface. This pin
serves as both a 4.43MHz output and as
a SECAM identification input/output pin.
7
8
9
SECAMREF
7
7.2V
250µA
SGND1
—
GND for Y/C block.
Color difference signal outputs. Go to
high impedance when the SECAM
system is detected.
Standard output levels for 75% CB:
B-Y: 0.665Vp-p
200µA
– (R-Y) OUT
10 – (B-Y) OUT
9
10
R-Y: 0.525Vp-p
5.7VDC when killer is ON.
500
Luminance signal output.
Black level is 3.5VDC.
Standard output level for 100 IRE input:
1Vp-p
11 YOUT
11
30k
400µA
1k
1k
Sand castle pulse output. The 0 to 5V
BGP pulse, the phase of which is
controlled through the bus, is
superimposed with the 0 to 2V H and
VBLK pulse for output.
12 SCPOUT
12
10k
Luminance signal input.
Clamped to 4.8V at the burst timing.
Standard input level for 100 IRE input:
1Vp-p
13 YRET
13
1.5k
70k
– 5 –
SONY [ SONY CORPORATION ]
