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参数资料
| 型号： | MAX19700ETM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC ANLG FRONT END 7.5MSPS 48TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 43 |
| 位数： | 10 |
| 通道数： | 2 |
| 功率（瓦特）： | 36.3mW |
| 电压 - 电源，模拟： | 3V |
| 电压 - 电源，数字： | 3V |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-TQFN-EP（7x7） |
| 包装： | 管件 |
| 产品目录页面： | 1398 (CN2011-ZH PDF) |
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General Description
The MAX19700 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 MAX19700 integrates a
dual 10-bit, 7.5Msps receive (Rx) ADC, dual 10-bit,
7.5Msps transmit (Tx) DAC with TD-SCDMA baseband
filters, and three fast-settling 12-bit aux-DAC channels
for ancillary RF front-end control. The typical operating
power in Tx-Rx FAST mode is 36.3mW at a 5.12Msps
clock frequency.
The Rx ADCs feature 54.9dB SINAD and 78dBc SFDR
at a 1.87MHz input frequency with a 7.5Msps sample
frequency. The analog I/Q input amplifiers are fully dif-
ferential and accept 1.024VP-P full-scale signals.
Typical I/Q channel matching is ±0.22° phase and
±0.02dB gain.
The Tx DACs with TD-SCDMA lowpass filters feature
-3dB cutoff frequency of 1.27MHz and >55dB stop-
band rejection at fIMAGE = 4.32MHz. The analog I/Q
full-scale output voltage range is selectable at ±410mV
or ±500mV. The output common-mode voltage is selec-
table from 0.9V to 1.4V and the I/Q channel offset is
adjustable. The typical I/Q channel matching is
±0.05dB gain and ±0.16° phase.
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
and the aux-DAC channels.
The MAX19700 operates on a single +2.7V to +3.3V
analog supply and +1.8V to +3.3V digital I/O supply.
The MAX19700 is specified for the extended (-40°C to
+85°C) temperature range and is available in a 48-pin,
thin QFN package.
Applications
TD-SCDMA Handsets
TD-SCDMA Data Cards
Portable Communication Equipment
Features
Dual 10-Bit Rx ADC and Dual 10-Bit Tx DAC
Ultra-Low Power
36.3mW at fCLK = 5.12Msps, Fast Mode
19.8mW at fCLK = 5.12Msps, Slow Mode
Low Standby and Shutdown Current
Integrated TD-SCDMA Filters with >55dB
Stopband Rejection
Excellent Dynamic Performance
SINAD = 54.9dB at fIN = 1.87MHz (Rx ADC)
SFDR = 76.5dBc at fOUT = 620kHz (Tx DAC)
Excellent Gain/Phase Match
±0.22° Phase, ±0.02dB Gain (Rx ADC) at
fIN = 1.87MHz at -0.5dBFS
Three 12-Bit, 1s Aux-DACs
Single-Supply Operation
Multiplexed Parallel Digital I/O
Serial-Interface Control
Versatile Power-Control Circuits
Shutdown, Standby, Idle, Tx-Rx Disable
Miniature 48-Pin Thin QFN Package
(7mm x 7mm x 0.8mm)
MAX19700
7.5Msps, Ultra-Low-Power
Analog Front-End
________________________________________________________________ Maxim Integrated Products
1
19-3549; Rev 0; 2/05
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.
EVALUATION
KIT
AVAILABLE
Ordering Information
PART*
PIN-PACKAGE
PKG CODE
MAX19700ETM
48 Thin QFN-EP**
T4877-4
MAX19700ETM+
48 Thin QFN-EP**
T4877-4
*All devices are specified over the -40°C to +85°C operating
range.
**EP = Exposed paddle.
+Denotes lead-free package.
Functional Diagram appears at end of data sheet.
DAC3
N.C.
VDD
GND
SCLK
DIN
T/R
SHDN
DR
VDD
CS
N.C.
IAP
IAN
GND
CLK
GND
VDD
QAN
GND
EXPOSED PADDLE (GND)
QAP
VDD
REFP
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
D4
D5
OGND
D6
D9
D8
D7
D3
D2
D1
D0
COM
REFIN
QDP
QDN
V
DD
GND
IDP
IDN
V
DD
DAC2
DAC1
REFN
THIN QFN
MAX19700
OV
DD
TOP VIEW
48
47
46
45
44
43
42
41
40
39
38
37
13
14
15
16
17
18
19
20
21
22
23
24
Pin Configuration
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX19700ETM+ | 功能描述:ADC / DAC多通道 7.5Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| MAX19700ETM+T | 功能描述:ADC / DAC多通道 7.5Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| MAX19700ETM-T | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| MAX19700EVCMOD2 | 功能描述:ADC / DAC多通道 Evaluation Kit/Evaluation System for the MAX19700 RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40 |
| MAX19700EVKIT | 功能描述:数据转换 IC 开发工具 RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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