STW81101AT datasheet(8/42 Pages) STMICROELECTRONICS

Part #	STW81101AT

Description	Multi-band RF frequency synthesizer with integrated VCOs

PDF	42 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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8 / 42 page

Block diagram and pin configuration

STW81101

8/42

TEST2

Test input 2

Test purpose only; must

be connected to GND

REF_CLK

Reference clock input

VDD_PLL

PLL digital power supply

EXTVCO_INN

External VCO negative input

Test purpose only; must

be connected to GND

EXTVCO_INP

External VCO positive input

Test purpose only; must

be connected to GND

VDD_BUFVCO

VCO buffer power supply

DBUS_SEL

Digital Bus Interface select

CMOS Input

VDD_DBUS

SPI and I2C bus power supply

EXT_PD

Power down hardware

CMOS Input

SDA/DATA

I2CBUS/SPI data line

CMOS Bidir Schmitt

triggered

SCL/CLK

I2CBUS/SPI clock line

CMOS Input

ADD0/LOAD

I2CBUS address select pin/ SPI load

line

CMOS Input

ADD1

I2CBUS address select pin

CMOS Input

ADD2

I2CBUS address select pin

CMOS Input

Table 1.

Pin description (continued)

Pin No

Name

Description

Observation

STW81101AT Datasheet(PDF) 8 Page - STMicroelectronics

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