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Preliminary

RF9678

W-CDMA TRANSMIT MODULATOR AND IF AGC

5

Typical Applications

鈥?W-CDMA Systems

鈥?EDGE Systems

鈥?CDMA Systems

鈥?TDMA Systems

Product Description

The RF9678 is an integrated complete quadrature modu-

lator and IF AGC amplifier designed for the transmit sec-

tion of W-CDMA applications. It is designed to modulate

baseband I and Q signals, and amplify the resulting IF

signals while providing 55dB of gain control range. This

circuit is designed as part of RFMD鈥檚 single mode

W-CDMA Chipset, which also includes the RF2679

W-CDMA Receive IF AGC and Demodulator. The IC is

manufactured on an advanced Silicon Bi-CMOS process,

and is supplied in a16-pin leadless chip carrier.

.80

.65

1.00

0.85

.60

.24 typ

4.00

sq.

.65

.30

4 PLCS

5

MODULATORS AND

UPCONVERTERS

2

.35

.23

1.85

1.55 sq.

12擄

max

.05

.01

.75

.50

.65

.23

.13

4 PLCS

Dimensions in mm.

NOTES:

1

2

Shaded Pin is Lead 1.

Dimension applies to plated terminal and is measured between 0.02 mm and

0.25 mm from terminal end.

3 Pin 1 identifier must exist on top surface of package by identification mark or

feature on the package body. Exact shape and size is optional.

4 Package Warpage: 0.05 max.

5 Die thickness allowable: 0.305 mm max.

Optimum Technology Matching廬 Applied

Package Style: LCC, 16-Pin, 4x4

眉

Si Bi-CMOS

PD

Si BJT

GaAs HBT

SiGe HBT

GaAs MESFET

Si CMOS

Features

鈥?Digitally Controlled Power Down Modes

鈥?2.7V to 3.3V Operation

鈥?Digital LO Quadrature Divider

鈥?AGC Linearity/Current Consumption Var.

鈥?IF AGC Amp with 55dB Gain Control

AGC DEC

14

16

VGC 1

VCC2 2

MOD+ 3

MOD- 4

5

I SIG+

15

13

12 NC

11 BG OUT

Gain Control

S

Quad

/2

VCC1

10 LO+

9 LO-

ISET

6

I SIG-

7

Q SIG+

8

Q SIG-

Ordering Information

RF9678

RF9678 PCBA

W-CDMA Transmit Modulator and IF AGC

Fully Assembled Evaluation Board

Functional Block Diagram

RF Micro Devices, Inc.

7628 Thorndike Road

Greensboro, NC 27409, USA

Tel (336) 664 1233

Fax (336) 664 0454

http://www.rfmd.com

Rev A4 010622

5-91

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RF9678相關(guān)型號PDF文件下載

• 型號
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  W-CDMA TRANSMIT MODULATOR AND IF AGC
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• RF9678PCBA
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• RF9678PCBA
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