AN18208A Просмотр технического описания (PDF) - Panasonic Corporation

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AN18208A

Tuner IC for home-audio stereo set

Panasonic Corporation 

AN18208A

„ Technical Data (continued)

y I2C-bus interface (continued)

6. Sub address byte and data byte format (Write mode)

Tuner-control (Group 1)

SUB-ADD 00H (Write)

Bit

Name

Function

LSB : D0

D1

D2

D3

D4

DSS0

DSS1

DSS2

DSS3

DSS4

FM and AM-SD tuned level adjust

Be sure to set it when you change FM / AM.

High : Sensitivity low

Low : Sensitivity high

This sensitivity is affected by an external RF amp. gain.

Ex.)

FM : X'5'

AM : X'C‘

It is recommended to set "0" for DSS4.

FM SD band width adjust

D5

DFDW1

DFDW1

0

DFDW2

0

1

0

D6

DFDW2

0

1

1

1

Width

50 kHz

75 kHz

100 kHz

Select OFF

MSB : D7

PLL-charge pump current select

120 μA → Fast lock up time

30 μA → S/N improvement

ICO

ICO

Icp [μA]

0

120

1

30

Normal : 120 μA

SDC00079AEB

19

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