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MAX19706

更新时间： 2024-09-15 05:00:27

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
37页	542K
描述
10-Bit, 45Msps, Ultra-Low-Power Analog Front-End

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MAX19706 数据手册

19-3826; Rev 1; 6/07

10-Bit, 45Msps, Ultra-Low-Power

Analog Front-End

General Description

Features

The MAX19707 is an ultra-low-power, mixed-signal ana-

log front-end (AFE) designed for power-sensitive com-

munication equipment. Optimized for high dynamic

performance at ultra-low power, the device integrates a

dual, 10-bit, 45Msps receive (Rx) ADC; dual, 10-bit,

45Msps transmit (Tx) DAC; three fast-settling 12-bit

aux-DAC channels for ancillary RF front-end control;

and a 10-bit, 333ksps housekeeping aux-ADC. The typ-

ical operating power in Tx-Rx FAST mode is 84.6mW at

a 45MHz clock frequency.

♦ Dual, 10-Bit, 45Msps Rx ADC and Dual, 10-Bit,

45Msps Tx DAC

♦ Ultra-Low Power

84.6mW at f_CLK= 45MHz, Fast Mode

77.1mW at f_CLK= 45MHz, Slow Mode

Low-Current Standby and Shutdown Modes

♦ Programmable Tx DAC Common-Mode DC Level

and I/Q Offset Trim

♦ Excellent Dynamic Performance

SNR = 54.2dB at f_IN= 5.5MHz (Rx ADC)

SFDR = 73.2dBc at f_OUT= 2.2MHz (Tx DAC)

The Rx ADCs feature 54.2dB SNR and 71.2dBc SFDR

at f_IN= 5.5MHz and f

= 45MHz. The analog I/Q

CLK

input amplifiers are fully differential and accept

♦ Three 12-Bit, 1µs Aux-DACs

1.024V full-scale signals. Typical I/Q channel match-

P-P

♦ 10-Bit, 333ksps Aux-ADC with 4:1 Input Mux and

ing is 0.03ꢀ phase and 0.01dB gain.

Data Averaging

The Tx DACs feature 73.2dBc SFDR at f

= 2.2MHz

OUT

♦ Excellent Gain/Phase Match

0.03ꢀ Phase, 0.01dB Gain (Rx ADC) at

f_IN= 5.5MHz

and f

= 45MHz. The analog I/Q full-scale output volt-

CLK

age is 400mV differential. The Tx DAC common-mode

DC level is programmable from 0.71V to 1.05V. The I/Q

channel offset is programmable to optimize radio lineup

sideband/carrier suppresion. The typical I/Q channel

matching is 0.01dB gain and 0.07ꢀ phase.

♦ Multiplexed Parallel Digital I/O

♦ Serial-Interface Control

♦ Versatile Power-Control Circuits

The Rx ADC and Tx DAC share a single, 10-bit parallel,

high-speed digital bus allowing half-duplex operation

for time-division duplex (TDD) applications. A 3-wire

serial interface controls power-management modes, the

aux-DAC channels, and the aux-ADC channels.

Shutdown, Standby, Idle, Tx/Rx Disable

♦ Miniature 48-Pin Thin QFN Package

(7mm x 7mm x 0.8mm)

Pin Configuration

The MAX19707 operates on a single 2.7V to 3.3V ana-

log supply and 1.8V to 3.3V digital I/O supply. The

MAX19707 is specified for the extended (-40ꢀC to

+85ꢀC) temperature range and is available in a 48-pin,

thin QFN package. The Selector Guide at the end of the

data sheet lists other pin-compatible versions in this

AFE family.

TOP VIEW

36 35 34 33

31 30 29 28 27 26 25

DAC2 37

DAC1 38

Applications

VoIP Terminals

IDN 40

IDP 41

WiMAX CPEs

GND

OGND

802.11a/b/g WLAN

Portable Communication

Equipment

MAX19707

QDN 44

QDP 45

REFIN 46

Ordering Information

EXPOSED PADDLE (GND)

COM

PART*

PIN-PACKAGE

48 Thin QFN-EP**

PKG CODE

T4877-4

REFN 48

MAX19707ETM

MAX19707ETM+

10 11 12

T4877-4

*All devices are specified over the -40°C to +85°C operating

range.

**EP = Exposed paddle.

THIN QFN

+Denotes lead-free package.

Functional Diagram and Selector Guide appear at end of

data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...37

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与MAX19706相关器件

型号	品牌	获取价格	描述	数据表
MAX19706ETM+	MAXIM	获取价格	暂无描述
MAX19706ETM+T	MAXIM	获取价格	Telecom Circuit, 1-Func, 7 X 7 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220, TQFN-48
MAX19706ETM-T	MAXIM	获取价格	Telecom Circuit, 1-Func, 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48
MAX19707	MAXIM	获取价格	10-Bit, 45Msps, Ultra-Low-Power Analog Front-End
MAX19707	ADI	获取价格	10位、45Msps、超低功耗模拟前端
MAX19707ETM	MAXIM	获取价格	10-Bit, 45Msps, Ultra-Low-Power Analog Front-End
MAX19707ETM+	MAXIM	获取价格	10-Bit, 45Msps, Ultra-Low-Power Analog Front-End
MAX19707ETM+T	MAXIM	获取价格	暂无描述
MAX19707ETM-T	MAXIM	获取价格	Telecom Circuit, 1-Func, 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48
MAX19708	MAXIM	获取价格	10-Bit, 45Msps, Ultra-Low-Power Analog Front-End

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