STV2247H 查看數據表（PDF） - STMicroelectronics

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STV2247H

I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR

STMicroelectronics 

STV224XH/228XH/223XH - I²C BUS SELECTION

Reg.

Data

Addr.

(Hex)

Description

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

01 SVHS status

1 X X X X X X X 0 No SVHS (CVBS mode).

X X X X X X X 1 SVHS mode.

Noise detection

1 X X X X X X 0 X High S/N.

X X X X X X 1 X Low S/N.

Scanning Horizontal

1 X X X X X 0 X X Not locked.

phase-locked loop status

X X X X X 1 X X Locked.

Safety status

1 X X X X 0 X X X Safety not active.

X X X X 1 X X X Safety active.

Fast Blanking detection on 1 X X X 0 X X X X No insertion detected.

external fast blanking pin

X X X 1 X X X X Insertion on FBext.

Test

1

X

X

X

X

0

1

X

X

X

X

X

X

X

X

X

X

Not to be used

Scanning VCO

Calibration

1 X 0 X X X X X X Not calibrated.

X 1 X X X X X X Calibrated.

FM demodulation VCO

calibration

1 0 X X X X X X X Not calibrated.

1 X X X X X X X Calibrated.

02

Digital AFC status

Sound carrier level

3 X X X X X 0 1 1 FPLL - F0 < -300 kHz.

X X X X X 0 1 0 -300 kHz < FPLL - F0 < -60 kHz.

X X X X X 0 0 0 -60 kHz < FPLL - F0 < +60 kHz.

X X X X X 1 0 0 +60 kHz < FPLL- F0 < +300 kHz.

X X X X X 1 0 1 +300 kHz < FPLL - F0.

3 X X 0 0 0 X X X Level 1 (low sound carrier signal).

X X 0 0 1 X X X Level 2.

X X 0 1 1 X X X Level 3.

X X 0 1 0 X X X Level 4.

X X 1 1 0 X X X Level 5.

X X 1 1 1 X X X Level 6.

X X 1 0 1 X X X Level 7.

X X 1 0 0 X X X Level 8 (high sound carrier signal)

Blue cut-off register and

cut-off loop status

2 0 0 X X X X X X Blue CO register < 011110000

0 1 X X X X X X Blue CO register > 100001111

1 0 X X X X X X 011110000 < Blue CO register < 100001111

and Icath not locked

1 1 X X X X X X 011110000 < Blue CO register < 100001111

and Icath locked

03 IC identification

1 X X X X X X X 0 TQFP64

X X X X X X X 1 SDIP56

Tuner AGC Output Status

(reg 1Fh, d5d4 = 00 or 01

or 11)

1

0 X X X X X X X Tuner AGC Output not active

1 X X X X X X X Tuner AGC Output active

AVL Gain Status

(reg 1Fh, d5d4 = 10)

1 0 X X X X X X X AVL Gain Max. (Low audio signal)

1 X X X X X X X AVL Gain Min. (High audio signal)

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