Datasheet

C25

R24

49.9 Ω

C32

R29

49.9 Ω

IOUT1

IOUT2

DAC

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Printed Circuit Assembly Options Available

1.5.3 CommsDAC Output Configurations

The THS56X1A CommsDAC output can be configured as single-ended outputs or as a differential output

(see also THS5661A, 12-bit, 100MSPS, CommsDAC data sheet SLAS247A). Differential output

configuration requires IOUT1 and IOUT2 to feed directly into SMA connectors, J8 and J9 (see Figure 1-5).

Figure 1-5. Connecting the THS56X1A Outputs to J8 and J9

1.6 Printed Circuit Assembly Options Available

To ensure the flexibility of the printed-circuit board (PCB), four possible CommsDACs featured in this

series are described in Table 1-3.

Table 1-3. Possible DACs

DAC Part No. No. of Bits Speed EVM Order No.

THS5671A 14 100 MSPS THS5671 EVM

THS5661A 12 100 MSPS THS5661 EVM

THS5651A 10 100 MSPS THS5651 EVM

THS5641A 8 100 MSPS THS5641 EVM

Ensure that the printed-circuit assembly (PCA) has the correct check mark on the silkscreen.

Each PCA may have additional hardware to install, if appropriate.

SLAU032C– February 2001– Revised April 2011 EVM Overview

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