參數(shù)資料
型號(hào)： MAX1196ECM+D
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 11/23頁(yè)
文件大?。?/td> 0K
描述： IC ADC 8BIT 40MSPS DL 48-TQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 250
位數(shù)： 8
采樣率（每秒）： 40M
數(shù)據(jù)接口： 并聯(lián)
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 108mW
電壓電源： 單電源
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 48-TQFP 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 48-TQFP 裸露焊盤(pán)（7x7）
包裝： 托盤(pán)
輸入數(shù)目和類(lèi)型： 4 個(gè)單端，雙極；2 個(gè)差分，雙極
MAX1196
Dual 8-Bit, 40Msps, 3V, Low-Power ADC with
Internal Reference and Multiplexed Parallel Outputs
______________________________________________________________________________________
19
Typical QAM Demodulation Application
A frequently used modulation technique in digital com-
munications applications is quadrature amplitude mod-
ulation (QAM). Typically found in spread- spectrum-
based systems, a QAM signal represents a carrier fre-
quency modulated in both amplitude and phase. At the
transmitter, modulating the baseband signal with quad-
rature outputs, a local oscillator followed by subse-
quent up-conversion can generate the QAM signal. The
result is an in-phase (I) and a quadrature (Q) carrier
component, where the Q component is 90 degrees
phase-shifted with respect to the in-phase component.
At the receiver, the QAM signal is divided down into its
I and Q components, essentially representing the mod-
ulation process reversed. Figure 10 displays the
demodulation process performed in the analog domain,
using the dual matched 3V, 8-bit ADC MAX1196, and
the MAX2451 quadrature demodulator to recover and
digitize the I and Q baseband signals. Before being
digitized by the MAX1196, the mixed-down signal com-
ponents can be filtered by matched analog filters, such
1/4 MAX4252
MAX6066
1/4 MAX4252
1.47k
21.5k
21.5k
21.5k
21.5k
21.5k
47k
3.3V
11
2
3
4
1
REFOUT
REFP
REFIN
1
F
10
F
6V
MAX1196
N = 1
REFN
29
N.C.
31
32
1
2
29
31
32
1
2
COM
REFOUT
NOTE: ONE FRONT-END REFERENCE CIRCUIT DESIGN CAN BE USED WITH UP TO 32 ADCs.
REFP
REFIN
MAX1196
N = 32
REFN
COM
2.0V AT 8mA
3
0.1
F
0.1
F
MAX4254 POWER-SUPPLY
BYPASSING. PLACE CAPACITOR
AS CLOSE AS POSSIBLE TO
THE OP AMP.
3.3V
1.47k
47k
3.3V
1.5V
11
6
5
4
7
10
F
6V
1.5V AT 0mA
1.47k
47k
3.3V
11
9
10
4
8
10
F
6V
0.1
F
0.1
F
0.1
F
0.1
F
0.1
F
2.2
F
10V
0.1
F
0.1
F
1.0V AT -8mA
330
F
6V
330
F
6V
330
F
6V
2.0V
1.0V
Figure 9. External Unbuffered Reference Drive With MAX4252 and MAX6066
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1196ECM-TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1197ECM 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1197ECM+D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 60Msps 3V High Speed ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1197ECM+TD 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-Bit 2Ch 60Msps 3V High Speed ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX1197ECM-D 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類(lèi)型:Differential 信噪比:107 dB 接口類(lèi)型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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