Datasheet > MAX19708ETM

MAX19708ETM

更新时间： 2024-12-01 21:03:03

品牌	Logo	应用领域
美信 - MAXIM		电信电信集成电路
页数	文件大小	规格书
37页	547K
描述
Telecom Circuit, 1-Func, 7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48

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MAX19708ETM 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	QFN
包装说明：	7 X 7 MM, 0.80 MM HEIGHT, MO-220, TQFN-48	针数：	48
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.73
JESD-30 代码：	S-XQCC-N48	JESD-609代码：	e0
长度：	7 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	48
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	UNSPECIFIED	封装代码：	HVQCCN
封装等效代码：	LCC48,.27SQ,20	封装形状：	SQUARE
封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	峰值回流温度（摄氏度）：	240
电源：	3 V	认证状态：	Not Qualified
座面最大高度：	0.8 mm	子类别：	Modems
最大压摆率：	0.016 mA	标称供电电压：	3 V
表面贴装：	YES	电信集成电路类型：	TELECOM CIRCUIT
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn85Pb15)
端子形式：	NO LEAD	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	20
宽度：	7 mm	Base Number Matches：	1

MAX19708ETM 数据手册

19-3764; Rev 0; 8/05

10-Bit, 11Msps, Ultra-Low-Power

Analog Front-End

General Description

Features

♦ Dual 10-Bit, 11Msps Rx ADC and Dual 10-Bit,

The MAX19708 is an ultra-low-power, mixed-signal ana-

log front-end (AFE) designed for TD-SCDMA handsets

and data cards. Optimized for high dynamic perfor-

mance at ultra-low power, the device integrates a dual

10-bit, 11Msps receive (Rx) ADC; dual 10-bit, 11Msps

transmit (Tx) DAC with TD-SCDMA baseband filters;

three fast-settling 12-bit aux-DAC channels for ancillary

RF front-end control; and a 10-bit, 333ksps housekeep-

ing aux-ADC. The typical operating power in Tx-Rx

FAST mode is 36.9mW at a 5.12MHz clock frequency.

11Msps Tx DAC

♦ Ultra-Low Power

36.9mW at f_CLK= 5.12MHz, Fast Mode

19.8mW at f_CLK= 5.12MHz, Slow Mode

Low-Current Standby and Shutdown Modes

♦ Integrated TD-SCDMA Filters with > 55dB

Stopband Rejection

♦ Programmable Tx DAC Common-Mode DC Level

and I/Q Offset Trim

The Rx ADCs feature 55dB SNR and 77.4dBc SFDR at a

1.87MHz input frequency with an 11MHz clock frequen-

cy. The analog I/Q input amplifiers are fully differential

♦ Excellent Dynamic Performance

SNR = 55dB at f_IN= 1.87MHz (Rx ADC)

SFDR = 73dBc at f_OUT= 620kHz (Tx DAC)

and accept 1.024V

full-scale signals. Typical I/Q

P-P

♦ Three 12-Bit, 1µs Aux-DACs

channel matching is 0.08° phase and 0.02dB gain.

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

The Tx DACs with TD-SCDMA lowpass filters feature -3dB

cutoff frequency of 1.32MHz and > 55dB stopband rejec-

Data Averaging

♦ Excellent Gain/Phase Match

0.08ꢀ Phase, 0.02dB Gain (Rx ADC) at

f_IN= 1.87MHz

tion at f

= 4.32MHz. The analog I-Q full-scale output

IMAGE

voltage range is selectable at 410mV or 500mV differ-

ential. The output DC common-mode voltage is selec-

table from 0.9V to 1.4V. The I/Q channel offset is

adjustable to optimize radio lineup sideband/carrier sup-

pression. Typical I-Q channel matching is 0.02dB gain

and 0.04° phase.

♦ Multiplexed Parallel Digital I/O

♦ Serial-Interface Control

♦ Versatile Power-Control Circuits

Shutdown, Standby, Idle, Tx/Rx Disable

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.

♦ Miniature 48-Pin Thin QFN Package

(7mm x 7mm x 0.8mm)

Pin Configuration

The MAX19708 operates on a single +2.7V to +3.3V

analog supply and +1.8V to +3.3V digital I/O supply.

The MAX19708 is specified for the extended (-40°C to

+85°C) 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

IDN 40

IDP 41

Applications

GND

OGND

TD-SCDMA Handsets

MAX19708

QDN 44

QDP 45

REFIN 46

TD-SCDMA Data Cards

Portable Communication Equipment

EXPOSED PADDLE (GND)

COM

Ordering Information

REFN 48

10 11 12

PART*

PIN-PACKAGE

48 Thin QFN-EP**

PKG CODE

T4877-4

MAX19708ETM

MAX19708ETM+

T4877-4

THIN QFN

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

**EP = Exposed paddle.

+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/Dallas 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MAX19708ETM相关器件

型号	品牌	获取价格	描述	数据表
MAX19708ETM+	MAXIM	获取价格	Telecom Circuit, 1-Func, 7 X 7 MM, 0.80 MM HEIGHT, ROHS COMPLIANT, MO-220, TQFN-48
MAX1970EEE	MAXIM	获取价格	Dual, 180∑ Out-of-Phase, 1.4MHz, 750mA Step-
MAX1970EEE+	MAXIM	获取价格	Switching Regulator, Current-mode, 0.75A, 1600kHz Switching Freq-Max, BICMOS, PDSO16, 0.15
MAX1970EEE+T	MAXIM	获取价格	Switching Regulator, Current-mode, 0.75A, 1600kHz Switching Freq-Max, BICMOS, PDSO16, 0.15
MAX1970-MAX1972	MAXIM	获取价格	Dual, 180∑ Out-of-Phase, 1.4MHz, 750mA Step-
MAX1971	MAXIM	获取价格	Dual, 180∑ Out-of-Phase, 1.4MHz, 750mA Step-
MAX1971	ADI	获取价格	双路、180°异相、1.4MHz、750mA、降压型调节器，带有POR和RSI/PFO
MAX19710	MAXIM	获取价格	10-Bit, 7.5Msps, Full-Duplex Analog Front-End
MAX19710ETN	MAXIM	获取价格	10-Bit, 7.5Msps, Full-Duplex Analog Front-End
MAX19710ETN+	MAXIM	获取价格	暂无描述

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