PMB2349 Просмотр технического описания (PDF) - Infineon Technologies

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PMB2349

Wireless Components Optimized RF/IF Dual PLL Frequency Synthesizer

Infineon Technologies 

Confidential

3.2 Pin Definition and Function

PMB 2349

preliminary

Functional Description

Table 3-1 Pin Definition and Function

Pin No. Symbol

Equivalent I/O-Schematic

23

VCC1

1

VPD1

2

CP1

PD O utput Equivalent

3

GND1

4

RF1

3

*2pF

CP1

ESD

RF and IF Input Equivalent

Function

Positive supply voltage

for CMOS circuitry

Positive supply voltage

for charge pump of PLL1

PLL1 charge pump output

Phase detector tristate

charge pump output

Ground for CMOS cir-

cuitry

RF frequency input 1

RF input with highly sen-

sitive preamplifier for

PLL1.

AC coupling must be set

up.

5

RFX

5/16

R F /IF

6/15

R F x/IF x

RF frequency input

(inverted)

RF input with highly sen-

sitive preampifier for

PLL1.

AC coupling must be set

up

6

GND2

Ground for bipolar cir-

cuitry

Wireless Components

3-3

Specification, May 2000

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