STUW81300 datasheet(9/63 Pages) STMICROELECTRONICS

Teilenummer	STUW81300

Bauteilbeschribung	Wideband RF/microwave PLL fractional/integer frequency synthesizer with integrated VCOs and LDOs

PDF	63 Pages

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Hersteller	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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9 / 63 page

DS11314 Rev 7

9/63

STuW81300

Pin definitions

SPI load enable

CMOS Schmitt triggered Input,

1.8 V compatible, 3.3 V tolerant

VDD_DSM_NDIV

Supply voltage of Delta-Sigma modulator and

loop divider

Must be connected to

VREG_DIG

Regulated supply voltage of digital circuitry

VIN_LDO_RF_DIG

Supply voltage of RF and digital circuitry

regulators

VREG_RF

Regulated supply voltage of RF blocks

RF1_OUTN

Direct and divided by 2 negative output

Internally matched to 50 ohm

RF1_OUTP

Direct and divided by 2 positive output

Internally matched to 50 ohm

VCC_RFOUT

Supply voltage for RF output stages

Must be connected to

VREG_4V5

RF2_OUTN

Doubler negative output

Internally matched to 50 ohm

RF2_OUTP

Doubler positive output

Internally matched to 50 ohm

TEST_SE

Test pin

Must be connected to GND

VIN_LDO_4V5

Supply voltage of 4.5 V regulator

Table 2. Pin descriptions (continued)

Pin No

Name

Description

Observation

STUW81300 Datenblatt(PDF) 9 Page - STMicroelectronics

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