STW81101AT datasheet(7/42 Pages) STMICROELECTRONICS

部件名	STW81101AT

功能描述	Multi-band RF frequency synthesizer with integrated VCOs

PDF	42 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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STW81101

Block diagram and pin configuration

7/42

1.2

Pin configuration

Figure 2.

Pin connection (top view)

Table 1.

Pin description

Pin No

Name

Description

Observation

VDD_VCOA

VCOA power supply

VDD_DIV2

Divider by 2 power supply

VDD_OUTBUF

Output buffer power supply

OUTBUFP

LO buffer positive output

Open collector

OUTBUFN

LO buffer negative output

Open collector

VDD_DIV4

Divider by 4 power supply

VDD_VCOB

VCOB power supply

VDD_ESD

ESD positive rail power supply

VCTRL

VCO control voltage

ICP

PLL charge pump output

REXT

External resistance connection for

PLL charge pump

VDD_CP

Power supply for charge pump

TEST1

Test input 1

Test purpose only; must

be connected to GND

LOCK_DET

Lock detector

CMOS Output

VFQFPN28

OUTBUFN

VDD_DIV4

VDD_DIV2

VDD_OUTBUF

VDD_BUFVCO

EXTVCO_INN

VDD_PLL

TEST2

VDD_VCOB

REF_CLK

VDD_VCOA

DBUS_SEL

OUTBUFP

EXTVCO_INP

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