PMB2349 Ver la hoja de datos (PDF) - Infineon Technologies

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PMB2349

Wireless Components Optimized RF/IF Dual PLL Frequency Synthesizer

Infineon Technologies 

Confidential

PMB 2349

preliminary

Functional Description

Table 3-1 Pin Definition and Function (continued)

Pin No. Symbol

Equivalent I/O-Schematic

12

Rext

O SW O utput Equivalent

14

RI

12

2pF

Rext

ESD

RI Input Equivalent

STDBY

13

RI

2pF

560Ω

ESD

/S T D B Y

500KΩ

Function

CP & Prescaler refer-

ence current setting

External resistor for CP &

Prescaler reference cur-

rent setting.

Reference frequency

input

Input with highly sensi-

tive preamplifier. With

small input signals AC

coupling must be set up,

where DC coupling can

be used for large input

signals.

15

GND2

16

IFX

17

IF

RF and IF Input Equivalent

5/16

R F /IF

6/15

R F x/IF x

Ground for bipolar cir-

cuitry

IF frequency input

(inverted)

IF input with highly sensi-

tive preampifier for PLL2.

AC coupling must be set

up.

IF frequency input

IF input with highly sensi-

tive preampifier for PLL2.

AC coupling must be set

up.

18

GND1

Wireless Components

3-5

Ground for CMOS cir-

cuitry

Specification, May 2000

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