Datasheet > RFT3100-2

RFT3100-2

更新时间： 2024-01-13 06:22:11

品牌	Logo	应用领域
其他 - ETC		模拟IC
页数	文件大小	规格书
2页	572K
描述
Analog IC

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中文翻译

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数据手册

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RFT3100-2 数据手册

T x B A S E B A N D / R F P R O C E S S O R

Enabling the future of communications.

RFT3100

bandpass filter normally

required between the

Figure 1. RFT3100 Processor Functional Block Diagram

upconverter and driver

VDDA

VDDD

VCONTROL

TX_I

amplifier, providing overall

board area and cost savings.

RFT3100 functionality is

specifically controlled from the

MSM device via the three-line

serial bus interface (SBI).

TX_IN

VDDM

VDDRF

CELLA_OUT

SSB

TX_Q

TX_QN

CELLB_OUT

PCSA_OUT

PCSB_OUT

1/2

Designed to meet the

requirements for global CDMA

markets, the RFT3100 device

will operate over the following

Tx frequency ranges:

DAC_IREF

SBCK

SBDT

SBST

SBI &

CONTROL

AB_SEL

PA_ON

Cellular band

824 MHz - 925 MHz

PCS band

PLL

1750 MHz - 1910 MHz

The range of supply voltage

for the RFT3100 device is from

2.7 V to 3.3 V, which provides

operating compatibility for

platforms utilizing a single-cell

Li-Ion battery design. RFT3100

operating modes are controlled

by the MSM and include

selective power-down, gain

control, and punctured CDMA

transmission (gated Tx power)

for optimal power savings and

talk-time improvement.

R F T 3 1 0 0 O V E R V I E W

The RFT3100™ Baseband-to-

Radio Frequency (RF) Transmit

Processor performs all transmit

(Tx) signal processing functions

required between the analog

baseband and the Power

integrated CDMA Tx solution

available, providing a board

area savings of more than 65

percent over previous

generation chipsets, the

RFT3100 device minimizes

power consumption for

extended talk-time performance. mixer for upconverting analog

baseband to IF, a

The RFT3100 device is

available in three

and MSM3300™ chipsets. The

baseband quadrature signals

are upconverted to the cellular

or PCS frequency bands and

amplified to provide signal drive

capability to the PA. The

Amplifier (PA) for IS-95 Code

Division Multiple Access

RFT3100 device includes an IF

(CDMA) cellular, JSTD-018

PCS, and ARIB-53 (Japan)

single-band and dual-band

applications. The RFT3100

device incorporates the

programmable Phase Locked

Loop (PLL) for generating Tx IF

frequency, single-sideband

upconversion from IF to RF, two

cellular and two PCS driver

amplifiers (dual-band version),

and Tx power control through

configurations: dual-band

cellular and PCS (RFT3100-1),

The RFT3100 device is

fabricated on an advanced

BiCMOS process, which

accommodates both precision

high-frequency analog circuits

and low-power CMOS functions,

and is available in a 32-pad

BCC++ plastic package.

previous-generation functionality cellular-only (RFT3100-2), and

of the IFT3000™ Baseband-to-

Intermediate Frequency (IF)

Processor together with RF

upconversion and driver

amplifiers. In addition to

offering the most advanced and QUALCOMM’s MSM3100™

PCS-only (RFT3100-3).

Utilizing an analog baseband an 85 dB variable gain

interface, the RFT3100 device

connects directly to

amplifier (VGA). The single-

sideband upconversion also

eliminates the need for a

QUALCOMM INCORPORATED CDMA TECHNOLOGIES 5775 MOREHOUSE DR. SAN DIEGO, CA 92121-1714 http://www.cdmatech.com <cdma-technologies@qualcomm.com> T (858)658-5005 F (858)658-1556

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