PC13180FC 查看數據表（PDF） - Motorola => Freescale

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PC13180FC

LOW POWER DC - 1.8 GHz LNA / MIXER and VCO

Motorola => Freescale 

Pin Connections

Pin

Symbol/

Type

19

GNDX

20

BASE

21

EMM

22

COLL

23

DCVCO

24

DCCP

25

VCCDC

26

RTXEN

Table 13. Pin Function Description (Continued)

Equivalent Internal Circuit

Description

19

100 nF

VCC

22

13 MHz

20

22 pF

21

12 pF

1.6 V

10 mA

Bias

Current

50 kΩ

Trim

CPT

Shown for 13 MHz reference oscillator.

33 nF

VCC

100 nF

VCC

23

VCC

DC VCO

Control

Voltage

24

9.0 kΩ

VCC

25

Charge

Pump

VDDINT

26

VDDINT

GNDX

Reference oscillator ground.

BASE

Reference oscillator base. The

base is the reference oscillator

input. An on-chip capacitor trim

network is also included to

allow the user to use relatively

inexpensive crystals.

EMM

Reference oscillator emitter.

A bias current of 50 µA is

supplied internally to the

emitter.

COLL

Reference oscillator collector.

The collector is tied to VCC.

The pin of the IC is bypassed

to gnd.

DCVCO

Data Clock Loop Filter VCO

control voltage. This pin can be

used to raise/lower the loop

corner frequency in conjunction

with the DCCP pin and external

components.

DCCP

Data Clock Loop Filter charge

pump.

VCCDC

Data clock VCC. The pin of the

IC is bypassed to gnd.

RTXEN

When RTXEN is asserted

(high), it controls the start of

the Rx or Tx cycle. Digital

input. The logic level is

internally shifted to the VDD

supply.

NOTE: VCC = VCCRF

18

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