National Semiconductor ADC121C021 Скачать руководство пользователя страница 18

FCC Interference Statement for Class B EVM devices

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

For EVMs annotated as IC – INDUSTRY CANADA Compliant

This Class A or B digital apparatus complies with Canadian ICES-003.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the
equipment.

Concerning EVMs including radio transmitters

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this
device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired
operation of the device.

Concerning EVMs including detachable antennas

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain
approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should
be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum
permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain
greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada.

Les changements ou les modifications pas expressément approuvés par la partie responsable de la conformité ont pu vider l’autorité de
l'utilisateur pour actionner l'équipement.

Concernant les EVMs avec appareils radio

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout
brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain
maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à
l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente
(p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.

Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel
d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans
cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.

SPACER

SPACER

SPACER

SPACER

SPACER

SPACER

SPACER

SPACER

Содержание ADC121C021

Страница 1: ...from www national com National Semiconductor January 3 2008 Rev 1 1 CC RoHS Compliant Evaluation Board User s Guide I2 C Compatible 12 Bit 10 Bit or 8 Bit Analog to Digital Converter ADC with Alert F...

Страница 2: ...rcuitry 7 4 4 I 2 C Interface 7 4 5 Alert Function 7 4 6 Automatic Conversion Mode 8 4 7 Power Supply Connections 8 5 0 Software Operation and Settings 8 5 1 Software Quick Start 8 5 2 Data Analysis 9...

Страница 3: ...he board to evaluate the ADC121C021 s performance In the Computer mode data capture and evaluation are simplified by connecting the evaluation board to National Semiconductor s WaveVision 4 Data Captu...

Страница 4: ...ut signal Figure 3 Figure 2 DC Coupled Input Configuration Figure 3 AC Coupled Input Configuration If needed the input can be terminated by adding an appropriate termination resistor at R3 The V_IN fo...

Страница 5: ...ent limit to power connector TP7 Ground TP6 4 Move the shorting jumper at JP5 to pins 9 10 NOTE only two consecutive pins may be shorted on JP5 at a time 5 Turn on the power supply 6 Connect the input...

Страница 6: ...oftware Operation and Settings to setup the WaveVision 4 software 4 0 Functional Description 4 1 Jumper Settings Table 1 describes the function of the various jumpers on the ADC121C021 evaluation boar...

Страница 7: ...e better than 90dBc THD 4 3 ADC Reference Circuitry The ADC121C021 family is internally referenced Therefore the Analog to Digital converter gets its reference from the analog supply VA Hence a clean...

Страница 8: ...ating in the computer mode the supply voltage for VA can be applied externally or supplied directly by the WV4 board through J1 The external supply voltage is selected by placing a jumper across pins...

Страница 9: ...rt function and Automatic Conversion Mode are setup through the Configuration register After making changes to a register value press the Enter key to write the register Figure 10 10 To capture a data...

Страница 10: ...the Control Panel window Each of the registers is read and displayed in the control panel To write to a register simply type in the 8 bit or 16 bit hex value to be written to the register and press En...

Страница 11: ...tions D and E 5 4 2 Solutions Solution A Ensure power is supplied to the VA supply on the board A single jumper must be placed across either pins 1 2 pins 3 4 pins 7 8 or pins 9 10 of JP5 to select th...

Страница 12: ...nd Located at the bottom right of the board TP9 WV_CLK_IN Not Used TP10 AGND Ground Located at the right side of the board Connectors on the ADC121C021 Evaluation Board J1 WV4S 14 pin dual row right a...

Страница 13: ...7 9 JP5 1 1 TP7 VA_EXT L3 0 Ohm R 1 2 JP7 VA_EXT_SHUNT R12 0 1 1 VIA6 C7 10 0uF 1 2 JP2 V_PULL L1 100uH 1 2 3 JP1 INPUT SELECT 1 1 TP10 AGND 1 1 VIA5 R10 0 1 1 TP6 AGND C4 0 1uF R6 20 1 1 VIA10 R2 0 R...

Страница 14: ...national com 14 9 0 Evaluation Board Layers Figure 11 ADC121C021 Evaluation Board All Layers with Silk Screen Figure 12 ADC121C021 Evaluation Board Top Layer Figure 13 ADC121C021 Evaluation Board Bott...

Страница 15: ...513 40 ND 1 JP8 NS JUMPER 1 J1 WV4S HEAD Digikey S5803 07 ND Sullins PRPN072PARN RC 1 J2 V_IN TP Center Via of SMA Digikey 5011K ND 2 L1 L2 100uH IND Digikey 490 1056 1 ND Murata BLM31PG121SN1L 1 L3 0...

Страница 16: ...THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or systems which a are intended for surgical implant into the body or b support or sus...

Страница 17: ...ncy energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES 003 rules which are designed to provide reasonable protection against radio fr...

Страница 18: ...na type and its gain should be so chosen that the equivalent isotropically radiated power e i r p is not more than that necessary for successful communication This radio transmitter has been approved...

Страница 19: ...roduct only after you obtained the license of Test Radio Station as provided in Radio Law of Japan with respect to this product or 3 Use of this product only after you obtained the Technical Regulatio...

Страница 20: ...property damage personal injury or death If there are questions concerning these ratings please contact a TI field representative prior to connecting interface electronics including input power and in...

Страница 21: ...egulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related information or support that may be provided...

Отзывы: