CXA1203N 查看數據表（PDF） - Sony Semiconductor

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CXA1203N

8mm VCR PAL JOG

Sony Semiconductor 

Pin Description

Pin

No.

Symbol

1 VCC

Voltage

DC

AC

5.0V

(typ.)

—

2

PB C

IN

350mVp-p

150mVp-p

(burst)

Equivalent circuit

—

VCC

PR

2

3.0V

60k

47k

15.2p

CXA1203M/N

Description

Supply voltage pin

Input pin of PAL playback

chrominance signal.

The chroma ACK operates to

cut off the output at Pin 15

when the DC bias voltage at

Pin 2 is 0.7V or less.

3.8V

3

SECAM

ACK

(H)

0V

—

(L)

VCC

20k

10k

(Sub)

8k

PR

20k

3

SECAM detector output pin.

H → SECAM

L → PAL

The SECAM or PAL mode is

fixed by applying an external

DC voltage.

SECAM: 3.0 to 5.0V

PAL: 0 to 1.0V

4

1/2

FHMP

3.2V

—

1.7V

VCC

(×2)

PR

4

(×2)

4k/2

Output pin of the pulse

obtained by dividing down the

AFC (fH-PLL) output by 2.

3.5V

5 75% C

—

1.0V

VCC

28k

(×3)

PR

5

(×3)

20k/3

8k

(Sub)

Connecting pin of the

charging and discharging

capacity to produce the

triangular wave chronized

with the C Sync signal.

All timing pulses used in the

IC are produced from this

triangular wave.

–3–

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