Datasheet

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Table 1. Jumper List (continued)

Jumper Function Default Jumper Setting

ADC Circuit

JP12 Parallel 1-2

JP11 SDA Open

JP9 SEN 1-2

JP15 OE Open

J2 DFS 7-8

J1 SEN 7-8

Clock Interface Circuit CDCE72010 (Bypassed)

R81/107 CLOCK IN R81

R113/114/115 CLOCK IN, Y0, Y1P SELECT R115

R108/110 Y1N SELECT R110

JP1 PWRDWN CDC 1-2

Power Supply

JP13 1.8VA_IN 1-2

JP14 1.8VD_IN 1-2

JP3 3.3V CDC 1-2

JP17 3.3V input select for LDO or switching 1-2

regulator

JP19 1.8V output select from LDO or switching 1-2

regulator

2. Connect the 3.3-V supply between J16 and J12 (GND). Do not connect a voltage source greater than

3.6 V.

3. Switch on external 3.3-V power supply.

4. Using a function generator with 50-Ω output impedance, generate a 0-V offset, 1.5-Vpp sine-wave

clock into J19. The frequency of the clock must be within the specification for the device speed grade.

5. Use a frequency generator with a 50-Ω output impedance to provide a 0-V offset, –1-dBFS-amplitude

sine-wave signal into J6. This provides a transformer-coupled differential input signal to the ADC.

6. Connect the TSW1200 or suitable logic analyzer to J10 to capture the resulting digital data. If a

TSW1200 is being used to capture data, follow the additional alphabetically labeled steps. For more

information, see Section 5.

(a) After installing the TSW1200 software and connecting the TSW1200 to the USB port, open the

TSW1200 software.

(b) Depending on the ADC under evaluation, select from the TI ADC Selection pull-down menu.

(d) After selecting a Single Tone FFT test, press the Capture Data button.

SLWU067C–November 2009–Revised May 2012 ADS41xx/58B18EVM

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