ATR4285 datasheet(9/13 Pages) ATMEL

Part #	ATR4285

Description	Reference Oscillator up to 15 MHz

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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9

4884A–AUDR–08/05

ATR4285

7.

Bit Organization

8.

Transmission Protocol

Note:

S = Start, P = Stop, A = Acknowledge

Table 7-1.

Bit Organization

MSB

LSB

Module address

11

0

1

0

0/1

0

A7

A6

A5

A4

A3

A2

A1

A0

Subaddress (R-divider)

X

0

1

X

Subaddress (N-divider)

X

1

X

Data byte 0 (Status)

SWO1

SWO2

SWO3

SWO4

AM/FM

PD - ANA

PD - POL

PD - CUR

D7

D6

D5

D4

D3

D2

D1

D0

Data byte 1

215

R-divider

28

Data byte 2

27

R-divider

20

Data byte 3

215

N-divider

28

Data byte 4

27

N-divider

20

Table 7-2.

Function Mode

Bit Description

Mode

LOW

HIGH

D3

AM/FM

FM operation

AM operation

D2

PD - ANA

PD analog

Test

D1

PD - POL

Negative polarity

Positive polarity

D0

PD - CUR

Output current 2

Output current 1

MSB

LSB

S

Address

A

Subaddress

A

Data 0

A

Data 1

A

Data 2

A

P

A0

A7

R-divider

MSB

LSB

S

Address

A

Subaddress

A

Data 3

A

Data 4

A

P

A0

A7

N-divider

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ATR4285 Datasheet(PDF) 9 Page - ATMEL Corporation

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