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LTC1565-31IS8 Datasheet

  • LTC1565-31IS8

  • 650kHz Continuous Time, Linear Phase Lowpass Filter

  • 8頁

  • LINER

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Final Electrical Specifications
LTC1565-31
650kHz Continuous Time,
Linear Phase Lowpass Filter
March 2000
FEATURES
s
s
s
s
s
s
s
s
s
DESCRIPTIO
7th Order, 650kHz Linear Phase Filter in an SO-8
Differential Inputs and Outputs
Operates on a Single 5V or a
鹵5V
Supply
Low Offset: 5mV Typical
75dB THD and SNR
78dB SNR
Shutdown Mode
Requires No External Components
Requires No External Clock Signal
APPLICATIO S
s
s
s
s
s
s
CDMA Base Stations
Data Communications
Antialiasing Filters
Smoothing or Reconstruction Filters
Matched Filter Pairs
Replacement for LC Filters
The LTC
廬
1565-31 is a 7th order, continuous time, linear
phase lowpass filter. The selectivity of the LTC1565-31,
combined with its linear phase and dynamic range, make it
suitable for filtering in data communications or data acqui-
sition systems. The filter attenuation is 37dB at 2脳 f
CUTOFF
and at least 72dB for frequencies above 3脳 f
CUTOFF
. Unlike
comparable LC filters, the LTC1565-31 achieves this selec-
tivity with a linear phase response in the passband.
With 5% accuracy of the cutoff frequency, the LTC1565-31
can be used in applications requiring pairs of matched filters,
such as transceiver I and Q channels. Furthermore, the
differential inputs and outputs provide a simple interface for
these wireless systems.
With a single 5V supply and a 2V
P-P
input, the LTC1565-31
features an impressive spurious free dynamic range of 75dB.
The maximum signal-to-noise ratio is 78dB and it is achieved
with a 2.5V
P-P
input signal.
The LTC1565-31 features a shutdown mode where power
supply current is reduced to less than 10碌A(chǔ).
Other cutoff frequencies and single-ended I/O can be pro-
vided upon request. Please contact LTC Marketing.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
Frequency Response
20
2.0
GAIN
1.8
1.6
Single 5V Supply, Differential 650kHz Lowpass Filter
ATTENUATION (dB)
V
IN+
V
IN鈥?/div>
1
2
+IN
鈥揑N
+OUT
鈥揙UT
8
7
V
OUT+
V
OUT
5V
鈥?/div>
0
鈥?0
GROUP DELAY
鈥?0
鈥?0
鈥?0
1.4
1.2
1.0
0.8
10
7
1565-31 TA02
LTC1565-31
3
0.1碌F
4
GND
V
鈥?/div>
5V
6
5
0.1碌F
V
+
SHDN
15645-31 TA01
鈥?00
10
4
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
U
DELAY (碌s)
10
5
10
6
FREQUENCY (Hz)
U
U
1

LTC1565-31IS8 產(chǎn)品屬性

  • LTC1565-31

  • 100

  • 集成電路 (IC)

  • 接口 - 濾波器 - 有源

  • -

  • 線性相位，連續(xù)時間低通

  • 650kHz

  • 1

  • 7th

  • 4.75 V ~ 11 V，±4.75 V ~ 5.5 V

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 管件

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