CXA3050 查看數據表（PDF） - Sony Semiconductor

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CXA3050

NICAM and SMATV RF MODULATOR/PLL

Sony Semiconductor 

CXA3050M

I2C Interface Data Format

Modulator Address

1

1

0

0

1

0

0

R/W ask

Data 1

PD ADJ1 ADJ0 S1

S0

over

mod

X

X

ask

Data 2

M12 M11 M10 M9

M8

M7

M6

M5

ask

Data 3

M4

M3

M2

M1

M0 MD2 MD1 MD0 ask

Data 4

X

NIC FM2 FM1 FM0 PS2 PS1 PS0 ask

Sound Carrier Course Adjust

S1

S0

Sound Carrier

Frequency

0

0

4.5MHz

0

1

5.5MHz

1

0

6.0MHz

1

1

6.5MHz

TV System

(Pre-emphasis)

NTSC

PAL

PAL

PAL

Sound Carrier Fine Adjust

ADJ1 ADJ0

df Adjust

0

0

0

1

1

0

1

1

–f

Normal

+f

+f

on chip

capacitance

6.4pF

3.2pF

1.6pF

0

PD

RF Power on (RF Amp & OSC)

OVM

Over Modulation Test

M12–MO Main divider control data

S1–S0

Sound carrier frequency selection

ADJ1–ADJ0 Sound carrier frequency adjust (0 to 6.4RF)

MD2–MD0 Modulation Depth

PS2–PS0 Picture/Sound control

FM

FM deviation adjust

NIC

Nicam Enable

M12 MO

Main UHF PLL Divider

MSB LSB 8191 to 2

Video Carrier frequency calculated from = 125 (M + 2) kHz

1 bit

1 bit

13 bits

2 bits

2 bits

3 bits

3 bits

3 bits

1 bit

–4–

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