LTC1565-31 Linear Technology, LTC1565-31 Datasheet - Page 4

• Manufacturer Part Number: LTC1565-31
• Description: 650kHz Continuous Time/ Linear Phase Lowpass Filter
• Manufacturer: Linear Technology

BLOCK DIAGRA
LTC1565-31
PIN
SHDN (Pin 5): Shutdown. When the Pin 5 voltage is low,
the LTC1565-31 goes into the current saving shutdown
mode. Pin 5 has a 4 A pull-up current. Leaving Pin 5 open
will place the LTC1565-31 in its normal operating mode.
4
U
FUNCTIONS
U
GND
+IN
–IN
V
–
U
1
2
3
4
W
V
V
+
–
–
+
+
–
~1M
5k
5k
~1M
SHUTDOWN
SWITCH
SHUTDOWN
SWITCH
TRANSLATION CIRCUIT
WITH COMMON MODE
INPUT BUFFERS
+
–
R
R
– OUT, + OUT (Pins 7, 8): Output Pins. Pins 7 and 8 are the
filter differential output. Each pin can drive 1k or 300pF
loads. The common mode voltage at the output pins is the
same as the voltage at Pin 3.
7th ORDER
NETWORK
SHUTDOWN
LINEAR
PHASE
FILTER
OUTPUT
OUTPUT
BUFFER
BUFFER
V
+
4 A
1565-31 BD
8 +OUT
7 –OUT
6
5
V
SHDN
+