EV8AQ160-DK
10
BDC- 1-Sep-10
e2v semiconductors SAS 2010
3 Main functions
3.1. Analog input signal
The user only needs to provide an analog signal at the input.
This signal is digitized by the ADC depending on the chosen operating mode:
•
4 channel mode (1 channel per ADC core),
•
2 channel mode (2 interleaved ADC cores),
•
1 channel mode (4 interleaved ADC cores).
Each channel input is driven in different ways on the board:
•
Single to Differential Amplifier from National Semiconductor (A channel: LMH6555),
•
Single to Differential Balun RF transformer (B channel: MACOM)
•
Single to Differential Amplifier from Analog Devices (C channel: ADA4939-1)
•
Direct input via SMA connector (D channel) (free for customer use)
Figure 5.
Analog input SMA configuration
A channel
B channel
C channel
D channel
Ext Clock
