LTC2412 Linear Technology, LTC2412 Datasheet - Page 11

• Manufacturer Part Number: LTC2412
• Description: 2-Channel Differential Input 24-Bit No Latency DS ADC
• Manufacturer: Linear Technology

PI FU CTIO S
F
controls the ADC’s notch frequencies and conversion
time. When the F
converter uses its internal oscillator and the digital filter
first null is located at 50Hz. When the F
FU CTIO AL BLOCK DIAGRA
TEST CIRCUITS
O
U
(Pin 14): Frequency Control Pin. Digital input that
U
U
U
SDO
O
pin is connected to V
CH0
CH0
CH1
CH1
REF
REF
GND
V
CC
U
+
–
+
–
+
–
Hi-Z TO V
V
V
1.69k
OL
OH
TO V
TO Hi-Z
MUX
OH
OH
IN
IN
+
–
C
LOAD
O
2412 TA03
CC
= 20pF
pin is connected
(F
Figure 1. Functional Block Diagram
O
DIFFERENTIAL
3RD ORDER
+
MODULATOR
= V
W
CC
), the
–
AUTOCALIBRATION
AND CONTROL
to GND (F
and the digital filter first null is located at 60Hz. When F
is driven by an external clock signal with a frequency f
the converter uses this signal as its system clock and the
digital filter first null is located at a frequency f
CH0/CH1
DECIMATING FIR
O
= OV), the converter uses its internal oscillator
OSCILLATOR
PING-PONG
INTERFACE
INTERNAL
SERIAL
SDO
Hi-Z TO V
V
V
OH
OL
2412 FD
V
TO Hi-Z
TO V
CC
1.69k
C
OL
OL
F
(INT/EXT)
SCK
SDO
CS
LOAD
O
2412 TA04
= 20pF
LTC2412
EOSC
11
/2560.
EOSC
2412f
O
,