t1 SCLK SDATA B 1 2 3 4 11 12 t
參數(shù)資料
型號(hào)： AD7468BRTZ-REEL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 17/29頁(yè)
文件大小： 0K
描述： IC ADC 8BIT 1.6V LP SOT23-6
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 8
采樣率（每秒）： 200k
數(shù)據(jù)接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 900µW
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： SOT-23-6
供應(yīng)商設(shè)備封裝： SOT-23-6
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類(lèi)型： 1 個(gè)單端，單極
產(chǎn)品目錄頁(yè)面： 777 (CN2011-ZH PDF)
其它名稱(chēng)： AD7468BRTZREEL7DKR
AD7466/AD7467/AD7468
Rev. C | Page 23 of 28
t1
SCLK
SDATA
B
1
2
3
4
11
12
t2
t6
tCONVERT
tQUIET
4 LEADING ZEROS
THREE-STATE
8 BITS OF DATA
DB7
DB0
t3
t4
t7
t5
t8
CS
02643-032
0
Figure 31. AD7468 Serial Interface Timing Diagram
MICROPROCESSOR INTERFACING
The serial interface on the AD7466/AD7467/AD7468 allows
the parts to be connected directly to many different micro-
processors. This section explains how to interface the AD7466/
AD7467/AD7468 with some of the more common microcontroller
and DSP serial interface protocols.
AD7466/AD7467/AD7468 to TMS320C541 Interface
The serial interface on the TMS320C541 uses a continuous
serial clock and frame synchronization signals to synchronize
the data transfer operations with peripheral devices like the
AD7466/AD7467/AD7468. The CS input allows easy inter-
facing between the TMS320C541 and the AD74xx devices,
without requiring any glue logic. The serial port of the
TMS320C541 is set up to operate in burst mode (FSM = 1
in the serial port control register, SPC) with internal CLKX
(MCM = 1 in the SPC register) and internal frame signal
(TXM = 1 in the SPC register), so both pins are configured as
outputs. For the AD7466, the word length should be set to
16 bits (FO = 0 in the SPC register). The standard synchronous
serial port interface in this DSP allows only frames with a word
length of 16 bits or 8 bits. Therefore, for the AD7467 and
AD7468 where 14 and 12 bits are required, the FO bit also
would be set up to 16 bits. In these cases, the user should keep
in mind that the last 2 bits and 4 bits for the AD7467 and
AD7468, respectively, are invalid data as the SDATA line goes
back into three-state on the 14th and 12th SCLK falling edge.
To summarize, the values in the SPC register are FO = 0,
FSM = 1, MCM = 1, and TXM = 1.
Figure 32 shows the connection diagram. For signal processing
applications, it is imperative that the frame synchronization
signal from the TMS320C541 provide equidistant sampling.
AD7466/
AD7467/
AD74681
SCLK
1ADDITIONAL PINS OMITTED FOR CLARITY.
SDATA
TMS320C5411
CLKX
CLKR
DR
FSX
FSR
02643-033
CS
Figure 32. Interfacing to the TMS320C541
AD7466/AD7467/AD7468 to ADSP-218x Interface
The ADSP-218x family of DSPs is interfaced directly to the
AD7466/AD7467/AD7468 without any glue logic. The SPORT
control register must be set up as described in Table 9.
Table 9. SPORT Control Register Setup
Setting
Description
TFSW = RFSW = 1
Alternate framing
INVRFS = INVTFS = 1
Active low frame signal
DTYPE = 00
Right-justify data
ISCLK = 1
Internal serial clock
TFSR = RFSR = 1
Frame every word
IRFS = 0
Sets up RFS as an input
ITFS = 1
Sets up TFS as an output
SLEN = 1111
16 bits for the AD7466
SLEN = 1101
14 bits for the AD7467
SLEN = 1011
12 bits for the AD7468
相關(guān)PDF資料
PDF描述
VI-20L-MY-B1 CONVERTER MOD DC/DC 28V 50W
LT1011CS8 IC VOLTAGE COMPARATOR 5V 8-SOIC
VI-272-MY-B1 CONVERTER MOD DC/DC 15V 50W
VE-2TR-IX-B1 CONVERTER MOD DC/DC 7.5V 75W
LT6700CS6-2#TRPBF IC COMP DUAL 400MV REF TSOT23-6
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD746A 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Dual Precision, 500 ns Settling, BiFET Op Amp
AD746AH 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Voltage-Feedback Operational Amplifier
AD746AQ 功能描述:IC OPAMP BIFET 13MHZ DUAL 8CDIP RoHS:否 類(lèi)別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類(lèi)型:J-FET 電路數(shù):2 輸出類(lèi)型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類(lèi)型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件
AD746B 制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Dual Precision, 500 ns Settling, BiFET Op Amp
AD746BH 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Voltage-Feedback Operational Amplifier
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*