 |
数据搜索系统，热门电子元器件搜索 |
|
|
数据搜索系统，热门电子元器件搜索 |
|
AFE5808A 数据表(PDF) 6 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
AFE5808A 数据表(HTML) 6 Page - Texas Instruments |
|
|
6 / 66 page  u 8CH_SNR - 10 N 10 1 1 C = x - 1CH_SNR N + N 56 7 - C 10 10 AFE5808A SLOS729B – OCTOBER 2011 – REVISED APRIL 2012 www.ti.com ELECTRICAL CHARACTERISTICS AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V, AC-coupled with 0.1 µF at INP and bypassed to ground with 15 nF at INM, No active termination, VCNTL = 0 V, fIN = 5 MHz, LNA = 18 dB, PGA = 24 dB, 14Bit, sample rate = 65 MSPS, LPF Filter = 15 MHz, low noise mode, VOUT = –1 dBFS, internal 500 Ω CW feedback resistor, CMOS CW clocks, ADC configured in internal reference mode, single-ended VCNTL mode, VCNTLM = GND, at ambient temperature TA = 25°C, unless otherwise noted. Min and max values are specified across full-temperature range with AVDD_5 V = 5 V, AVDD = 3.3 V, AVDD_ADC = 1.8 V, DVDD = 1.8 V PARAMETER TEST CONDITION MIN TYP MAX UNITS TGC FULL SIGNAL CHANNEL (LNA+VCAT+LPF+ADC) Rs = 0 Ω, f = 2 MHz, LNA =24/18/12 dB, PGA = 2 4dB 0.76/0.83/1.16 Input voltage noise over LNA Gain(low nV/rtHz noise mode) Rs = 0 Ω, f = 2 MHz,LNA =24/18/12 dB, PGA = 30 dB 0.75/0.86/1.12 Rs = 0 Ω, f = 2 MHz,LNA =24/18/12 dB, PGA = 24 dB 1.1/1.2/1.45 Input voltage noise over LNA Gain(low en (RTI) nV/rtHz power mode) Rs = 0 Ω, f = 2 MHz, LNA =24/18/12 dB, PGA = 30 dB 1.1/1.2/1.45 Rs = 0 Ω, f = 2 MHz,LNA = 24/18/12 dB, PGA = 24 dB 1/1.05/1.25 Input Voltage Noise over LNA nV/rtHz Gain(Medium Power Mode) Rs = 0 Ω, f = 2 MHz, LNA = 24/18/12 dB, PGA = 30 dB 0.95/1.0/1.2 Input referred current noise Low Noise Mode/Medium Power Mode/Low Power Mode 2.7/2.1/2 pA/rtHz Rs = 200 Ω, 200 Ω active termination, PGA = 24dB,LNA = 12/18/24 dB 3.85/2.4/1.8 dB NF Noise figure Rs = 100 Ω, 100 Ω active termination, PGA = 24dB,LNA = 12/18/24 dB 5.3/3.1/2.3 dB VMAX Maximum Linear Input Voltage LNA gain = 24/18/12 dB 250/500/1000 mVPP VCLAMP Clamp Voltage Reg52[10:9] = 0, LNA = 24/18/12 dB 350/600/1150 Low noise mode 24/30 PGA Gain dB Medium/Low power mode 24/28.5 LNA = 24 dB, PGA = 30 dB, Low noise mode 54 Total gain LNA = 2 4dB, PGA = 30 dB, Med power mode 52.5 dB LNA = 24 dB, PGA = 30 dB, Low power mode 52.5 Ch-CH Noise Correlation Factor without Summing of 8 channels 0 Signal (1) Full band (VCNTL = 0/0.8) 0.15/0.17 Ch-CH Noise Correlation Factor with Signal (1) 1MHz band over carrier (VCNTL= 0/0.8) 0.18/0.75 VCNTL = 0.6V(22 dB total channel gain) 68 70 Signal to Noise Ratio (SNR) VCNTL = 0, LNA = 18 dB, PGA =24 dB 59.3 63 dBFS VCNTL = 0, LNA = 24 dB, PGA = 24 dB 58 SNR over 2 MHz band around carrier at VCNTL = 0.6 V ( 22 dB total Narrow Band SNR 75 77 dBFS gain) Input Common-mode Voltage At INP and INM pins 2.4 V 8 k Ω Input resistance Preset active termination enabled 50/100/200/400 Ω Input capacitance 20 pF Input Control Voltage VCNTLP - VCNTLM 0 1.5 V Common-mode voltage VCNTLP and VCNTLM 0.75 V Gain Range -40 dB Gain Slope VCNTL= 0.1 V to 1.1 V 35 dB/V Input Resistance Between VCNTLP and VCNTLM 200 K Ω Input Capacitance Between VCNTLP and VCNTLM 1 pF TGC Response Time VCNT L= 0 V to 1.5 V step function 1.5 µs 3rd order-Low-pass Filter 10, 15, 20, 30 MHz Settling time for change in LNA gain 14 µs Settling time for change in active 1 µs termination setting (1) Noise correlation factor is defined as Nc/(Nu+Nc), where Nc is the correlated noise power in single channel; and Nu is the uncorrelated noise power in single channel. Its measurement follows the below equation, in which the SNR of single channel signal and the SNR of summed eight channel signal are measured. 6 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Link(s): AFE5808A |
|
链接网址 |
| ALLDATASHEET是否为您带来帮助? [ DONATE ] |
关于 Alldatasheet | 广告服务 | 联系我们 | 隐私政策 | 数据表链接 | 链接交换 | 制造商名单 All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Chinese ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
