ADC1413D NXP Semiconductors, ADC1413D Datasheet - Page 15

• Manufacturer Part Number: ADC1413D
• Description: Dual 14-bit ADC
• Manufacturer: NXP Semiconductors

NXP Semiconductors
ADC1413D_SER_4
Preliminary data sheet
13.1.2 Anti-kickback circuitry
13.1.3 Transformer
Anti-kickback circuitry (RC filter in
charge injection generated by the sampling capacitance.
The RC filter is also used to filter noise from the signal before it reaches the sampling
stage. The value of the capacitor should be chosen to maximize noise attenuation without
degrading the settling time excessively.
The component values are determined by the input frequency and should be selected so
as not to affect the input bandwidth.
Table 9.
The configuration of the transformer circuit is determined by the input frequency. The
configuration shown in
Input frequency
3 MHz
70 MHz
170 MHz
Fig 7.
Fig 8.
Anti-kickback circuit
Single transformer configuration
RC coupling versus input frequency, typical values
Analog
input
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100 nF
Figure 8
Rev. 04 — 23 April 2010
100 nF
ADT1-1WT
Resistance
25 Ω
12 Ω
12 Ω
would be suitable for a baseband application.
Figure
R
R
ADC1413D series; serial JESD204A interface
7) is needed to counteract the effects of a
100 nF
100 nF
100 nF
005aaa073
C
ADC1413D series
INM
INP
25 Ω
25 Ω
25 Ω
25 Ω
Capacitance
12 pF
8 pF
8 pF
12 pF
100 nF
005aaa070
INAM
INBM
INAP
INBP
VCM
© NXP B.V. 2010. All rights reserved.
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