STW81103 datasheet(39/53 Pages) STMICROELECTRONICS

부품명	STW81103

상세설명	Multi-band RF frequency synthesizer with integrated VCOs

PDF	53 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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39 / 53 page

STW81103

SPI digital interface

39/53

Table 23.

Bits at 01h and ST2

Serial interface address = 01h

Bit

Name

Description

[23]

OUTBUF_CTRL_EN

Output buffer control mode enable (0 = Off, 1 = On)

[22]

CAL_AUTOSTART_EN

VCO calibration auto restart enable (0 = Off, 1 = On)

[21]

PD4

Device functional modes:

0. Power down

1. Enable VCO A, output frequency divided by 2

2. Enable VCO B, output frequency divided by 2

3. Enable external VCO, output frequency divided by 2

4. Enable VCO A, output frequency divided by 4

5. Enable VCO B, output frequency divided by 4

6. Enable external VCO, output frequency divided by 4

7. Enable VCO A, direct output

8. Enable VCO B, direct output

9. Enable external VCO, direct output

[20]

PD3

[19]

PD2

[18]

PD1

[17]

PD0

[16]

B11

B_COUNTER bits

[15]

B10

[14]

[13]

[12]

[11]

[10]

[9]

[8]

[7]

[6]

[5]

[4]

A_COUNTER bits

[3]

[2]

[1]

[0]

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