MC145750VFU 데이터 시트보기 (PDF) - Motorola => Freescale

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MC145750VFU

QPSK Encoder

Motorola => Freescale 

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

Product Preview

QPSK Encoder

The MC145750 is a silicon gate HCMOS device designed to encode π/4–shift

QPSK baseband signals. The device contains two 10–bit DACs for the I/Q

signal, Root–Nyquist digital filtering, and burst rising and falling edge

processing for digital RF communication equipment. Primary applications for

this device are in products that will be used in PHS (384 kbps) and PDC

(42 kbps). It will perform up to 800 kbps data rate. It also contains PN511

random pattern generator and timing generator with PLL.

• Root–Nyquist Digital Filtering (Coefficient = 0.5)

• Burst Edge Processing Circuitry (Ramp–Up and –Down)

• Two 10–Bit DACs for I/Q Output

• Operating Voltage Range: 2.7 to 5.5 V

• PN511 Random Pattern Generator

• Conformance to RCR Standard for PHS, PDC

• Variable Data Transmission Rate up to 800 kbps (VDD = 5 V)

• Timing Generator with PLL

• QPSK Mode, Burst, and Continuous I/Q Signal Output is Performed

• Companion Device is MRFIC0001

PIN ASSIGNMENT

NC

PB1

CF

PCO

PLL

ECLK

DVDD

DVSS

DCLK

DS/STBY

TXD

ERST/PDN

36

37

48

1

25

24 TB7

TNO/TB8

BW/TB9

NC

Iout

DAref3

DAref2

DAref1

DAref

Qout

DAVSS

13 DAVDD

12

NC = NO CONNECTION

Order this document

by MC145750/D

MC145750

VFU SUFFIX

PLASTIC VQFP

CASE 932

ORDERING INFORMATION

MC145750VFU VQFP

This document contains information on a product under development. Motorola reserves the right to change or discontinue this product without notice.

REV 2

10/95

©MOMoTtoOroRla,OInLc.A1995

MC145750

1

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