MAX1003
Single-ended and differential AC-coupled input circuits
are shown in Figures 2 and 3. Each of the amplifier
inputs is internally biased to a 2.35V reference through
a 20k
resistor, eliminating external DC bias circuits. A
series 0.1F capacitor is required at each amplifier
input for AC-coupled signals.
When operating with AC-coupled inputs, the input
amplifiers’ DC offset voltage is nulled to within ±1/2LSB
by an on-chip offset-correction amplifier. An external
compensation capacitor is required to set the dominant
pole of the offset-correction amplifier’s frequency
response (Figures 2 and 3). The compensation capaci-
tor will determine the low-frequency corner of the ana-
log input response according to the following formula:
fc = 1 / (0.1 x C)
where C is the value of the compensation capacitor in
F, and fc is the corner frequency in Hz.
Low-Power, 90Msps, Dual 6-Bit ADC
6
_______________________________________________________________________________________
0
DIV
90Msps
DATA
BUFFER
TANK
MODCTL
CAR
SYNTHESIZER
FIN
IIN
AGC
CLK IN
DSP
QIN
ADC CLOCK
6 BITS
TANK
LO
TSA5055
or EQUIV.
90
MOD GND
AGC
IOUT
QOUT
VCC
FROM TANK VOLTAGE
VARACTOR-TUNED
PRESELECTION FILTER
EXTERNAL
VCO
OR
KU BAND
75
CABLE
950MHz TO 2150MHz
F-CONNECTOR
INPUT
MAX2102
MAX1003
DATA
BUFFER
LO
RFIN
LNB
6 BITS
Figure 1. Commercial Satellite Receiver System
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相关代理商/技术参数
MAX1003CAX+ 功能描述:模数转换器 - ADC Low-Power 90Msps Dual 6-Bit RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1003CAX+T 功能描述:模数转换器 - ADC Low-Power 90Msps Dual 6-Bit RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1003CAX-T 功能描述:模数转换器 - ADC RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32
MAX1003EVKIT 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
MAX1005 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:IF Undersampler
MAX1005CEE 功能描述:射频无线杂项 RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel
MAX1005CEE+ 功能描述:射频无线杂项 IF Undersampler RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel
MAX1005CEE+T 功能描述:射频无线杂项 IF Undersampler RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel