EVX10AS008BGL ETC-unknow, EVX10AS008BGL Datasheet - Page 42

• Manufacturer Part Number: EVX10AS008BGL
• Description: Adc Single 2.2gsps 10-bit Lvds 152-pin Cbga
• Manufacturer: ETC-unknow

8.7.6
8.7.7
Figure 8-12. Typical Tuning Range is ±45 ps for Applied Control Voltage Varying Between
Note:
42
The variation of the delay in function of the temperature is negligible.
0811A–BDC–12/08
ADC Gain Control
Sampling Delay Adjust
The ADC gain is adjustable by the means of the pin R9 of CBGA package.
Figure 8-11. Gain Adjust Transfer Function
Sampling delay adjust (SDA pin) allows to fine tune the sampling ADC aperture delay TAD around its
nominal value. This functionality is enabled thanks to the SDAEN signal, which is active when tied to V
and inactive when tied to GND.
This feature is particularly interesting for interleaving ADCs to increase sampling rate.
The variation of the delay around its nominal value as a function of the SDA voltage is shown in the fol-
lowing graph (simulation result):
-10
-20
-30
-40
-50
50
40
30
20
10
0
-600
-400
1.30
1.20
1.10
1.00
0.90
0.80
0.70
0.60
0.50
-0.5
-200
-0.4
-0.3
Variation SDA
Tension (mV)
-0.2
0
V GA Gain Adjust Voltage (V)
-0.1
0
200
0.1
Typical
0.2
Min
400
0.3
–
0.5V to 0.5V on SDA Pin
0.4
e2v semiconductors SAS 2008
600
EV10AS008B
0.5
CC