參數(shù)資料
型號(hào)： MAX19711ETN+T
廠商： Maxim Integrated Products
文件頁數(shù)： 22/36頁
文件大?。?/td> 0K
描述： IC ANLG FRNT END 56-TQFN
產(chǎn)品變化通告： Product Discontinuation 09/Jun/2011
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 10
通道數(shù)： 2
功率（瓦特）： 37.5mW
電壓 - 電源，模擬： 3V
電壓 - 電源，數(shù)字： 3V
封裝/外殼： 56-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 56-TQFN-EP（7x7）
包裝： 帶卷 (TR)
MAX19711
10-Bit, 11Msps, Full-Duplex
Analog Front-End
______________________________________________________________________________________
29
Applications Information
Using Balun Transformer AC-Coupling
An RF transformer (Figure 10) provides an excellent
solution to convert a single-ended signal source to a
fully differential signal for optimum ADC performance.
Connecting the center tap of the transformer to COM
provides a VDD / 2 DC level shift to the input. A 1:1
transformer can be used, or a step-up transformer can
be selected to reduce the drive requirements. In gener-
al, the MAX19711 provides better SFDR and THD with
fully differential input signals than single-ended signals,
especially for high input frequencies. In differential
Figure 9. Aux-ADC Conversions Timing
CS/WAKE
2. CONTINUOUS AUX-ADC CONVERSIONS
tDCS
tCONV
SCLK
00
01
1
11
1
00
1
11
1
00
1
11
16
1
10
11
12
13
14
15
16
1
10
11
12
13
14
15
16
1
DIN
DOUT
D1
D0
D0 HELD
D9
D1
D0
D0 HELD
D9
FIRST 10 BIT AUX-ADC
CONVERSION RESULT IS
SHIFTED OUT ON DOUT ON
THE FALLING EDGE OF SCLK
MSB FIRST
SECOND 10 BIT AUX-ADC
CONVERSION RESULT IS
SHIFTED OUT ON DOUT ON
THE FALLING EDGE OF SCLK
MSB FIRST
AD10 = 1, AD0 = 1,
PERFORM CONVERSION,
DOUT ENABLED
AD10 = 1, AD0 = 1,
PERFORM CONVERSION,
DOUT ENABLED
AD10 = 1, AD0 = 1,
PERFORM CONVERSION,
DOUT ENABLED
DOUT TRANSITIONS FROM
HIGH IMPEDANCE TO LOGIC-
HIGH INDICATING START OF
FIRST CONVERSION
DOUT TRANSITIONS HIGH
INDICATING START OF
SECOND CONVERSION
DOUT TRANSITIONS HIGH
INDICATING START OF
THIRD CONVERSION
DOUT TRANSITIONS LOW
INDICATING END OF FIRST
CONVERSION, DATA IS AVAILABLE
AND CAN BE SHIFTED OUT IF DOUT
IS ENABLED, AD0 CLEARED
DOUT TRANSITIONS LOW
INDICATING END OF SECOND
CONVERSION, DATA IS AVAILABLE
AND CAN BE SHIFTED OUT IF DOUT
IS ENABLED, AD0 CLEARED
DOUT TRANSITIONS LOW
INDICATING END OF THIRD
CONVERSION, DATA IS AVAILABLE
AND CAN BE SHIFTED OUT IF DOUT
IS ENABLED, AD0 CLEARED
AUX-ADC REGISTER
ADDRESS
tCSD
tCD
tCHZ
CS/WAKE
SCLK
1. SINGLE AUX-ADC CONVERSION WITH CONVERSION DATA READOUT AT A LATER TIME
1
00
1
0
1
0
1
DIN SET HIGH DURING SINGLE READ
11
16
1
16
1
16
1
16
10
D1
D0
D0 HELD
D9
11
DIN
DOUT
AD10 = 0, AD0 = 1,
PERFORM CONVERSION,
DOUT DISABLED
DOUT TRANSITIONS FROM
HIGH IMPEDANCE TO LOGIC-
HIGH INDICATING START OF
CONVERSION
DOUT TRANSITIONS LOW
INDICATING END OF CONVERSION,
DATA IS AVAILABLE AND CAN BE
SHIFTED OUT IF DOUT IS ENABLED,
AD0 CLEARED
0
IF AUX-ADC CONVERSION
DOES NOT NEED TO BE
READ IMMEDIATELY, THE SPI
INTERFACE IS FREE AND
CAN BE USED FOR OTHER
FUNCTIONS, SUCH AS
HOUSEKEEPING AUX-DAC
ADJUSTMENT, ETC.
AUX-ADC REGISTER
ADDRESS
CONVERSION RESULT DATA
BIT D0 IS HELD FOR THE SIX
LEAST SIGNIFICANT BITS
DOUT TRANSITIONS TO
HIGH-IMPEDANCE
10 BIT AUX-ADC
CONVERSION RESULT IS
SHIFTED OUT ON DOUT ON
THE FALLING EDGE OF SCLK
MSB FIRST
AUX-ADC REGISTER
ADDRESS
AD10 = 1, AD0 = 0,
AUX-ADC IDLE
(NO CONVERSION),
DOUT ENABLED AND
CONVERSION DATA IS
SHIFTED OUT ON NEXT
CS/WAKE FALLING EDGE
FIRST FALLING EDGE OF
CS/WAKE AFTER DOUT IS
ENABLED STARTS SHIFTING THE
AUX-ADC CONVERSION DATA ON
THE FALLING EDGE OF SCLK
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX19711EVCMODU+ 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX19710/13 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX19711EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX19711EVKIT+ 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX19710/13 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX19712ETN 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19712ETN+ 功能描述:ADC / DAC多通道 22Msps CODEC/AFE Full Duplex RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40
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