LTC1060ACJ Linear Technology Corporation, LTC1060ACJ Datasheet

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LTC1060ACJ

Manufacturer Part Number
LTC1060ACJ
Description
Universal dual filter building block
Manufacturer
Linear Technology Corporation
Datasheet
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
1mV(RMS)
Guaranteed Filter Specification for ±2.37V and
±5V Supply
Operates Up to 30kHz
Low Power and 88dB Dynamic Range at ±2.5V Supply
Center Frequency Q Product Up to 1.6MHz
Guaranteed Offset Voltages
Guaranteed Clock-to-Center Frequency Accuracy Over
Temperature:
Guaranteed Q Accuracy Over Temperature
Low Temperature Coefficient of Q and Center
Frequency
Low Crosstalk, 70dB
Clock Inputs TTL and CMOS Compatible
Single 5V Supply Medium Frequency Filters
Very High Q and High Dynamic Range Bandpass,
Notch Filters
Tracking Filters
Telecom Filters
V
0.3% for LTC1060A
0.8% for LTC1060
IN
Single 5V, Gain of 1000 4th Order Bandpass Filter
3.16k
CLOCK IN
17.5kHz
U
100k
2k
5V
10
1
2
3
4
5
6
7
8
9
LTC1060
3.16k
U
20
19
18
17
16
15
14
13
12
11
100k
2k
1k
OUTPUT
1k
5V
0.1µF
LTC1060 • TA01
DESCRIPTIO
The LTC
capacitor filters. Each filter, together with 2 to 5 resistors,
can produce various 2nd order filter functions such as
lowpass, bandpass, highpass notch and allpass. The
center frequency of these functions can be tuned by an
external clock or by an external clock and resistor ratio. Up
to 4th order full biquadratic functions can be achieved by
cascading the two filter blocks. Any of the classical filter
configurations (like Butterworth, Chebyshev, Bessel, Cauer)
can be formed.
The LTC1060 operates with either a single or dual supply
from ±2.37V to ±8V. When used with low supply
(i.e. single 5V supply), the filter typically consumes 12mW
and can operate with center frequencies up to 10kHz. With
±5V supply, the frequency range extends to 30kHz and
very high Q values can also be obtained.
The LTC1060 is manufactured by using Linear
Technology’s enhanced LTCMOS™ silicon gate process.
Because of this, low offsets, high dynamic range, high
center frequency Q product and excellent temperature
stability are obtained.
The LTC1060 is pinout compatible with MF10.
LTCMOS trademark of Linear Technology Corporation.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
1060 consists of two high performance, switched
–10
70
60
50
40
30
20
10
0
0
Universal Dual Filter
100
Amplitude Response
U
125
INPUT FREQUENCY (Hz)
150
175
Building Block
200
225
LTC1060 • TA02
250
LTC1060
275
1060fb
1

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LTC1060ACJ Summary of contents

Page 1

... Technology’s enhanced LTCMOS™ silicon gate process. Because of this, low offsets, high dynamic range, high center frequency Q product and excellent temperature stability are obtained. The LTC1060 is pinout compatible with MF10. , LTC and LT are registered trademarks of Linear Technology Corporation. LTCMOS trademark of Linear Technology Corporation. OUTPUT 20 100k ...

Page 2

... 50/100/HOLD 12 10 CLKB 11 SW PACKAGE 20-LEAD PLASTIC SO WIDE = 100 C, = 100 C/W ( 150 C/W (SW PACKAGE LTC1060ACJ 20-LEAD CERDIP LTC1060MJ T = 150 C/W JMAX JA LTC1060AMJ LTC1060CJ = ± 5V, unless otherwise noted. s MIN TYP MAX 0.1 to 20k 0.1 to 16k 50 ± 0.3% 50 ± 0.8% 100 ± 0.3% 100 ± ...

Page 3

ELECTRICAL CHARACTERISTICS range, otherwise specifications are at T PARAMETER CONDITIONS Center Frequency Range f • Q ≤ 100kHz 0 Clock-to-Center Frequency Ratio LTC1060A Mode 1, 50:1, f LTC1060 Mode 1, 50:1, f LTC1060A Mode 1, 100:1, f LTC1060 Mode 1, ...

Page 4

LTC1060 W U TYPICAL PERFOR A CE CHARACTERISTICS Graph 1. Mode Deviation vs Q CLK ± 25° 250kHz CLK 0 –0.4 –0.8 f CLK –1.2 = ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Graph 10. Mode and Q CLK 0 CLK 1 ±2. 25° 0.8 CLK = 100 0.6 0.4 Q ...

Page 6

LTC1060 W U TYPICAL PERFOR A CE CHARACTERISTICS Graph 19. Mode 3 ( and Q CLK 0 CLK 0 ± 25°C A 0.6 f CLK = 100:1 ...

Page 7

PIN DESCRIPTION AND APPLICATIONS INFORMATIO Power Supplies + + The V and V (pins 7 and 8) and the (Pins 14 and 13) are, respectively, the analog and digital positive and negative supply pins. ...

Page 8

LTC1060 U U APPLICATIO S I FOR ATIO internal op amps, as well as the reference point of all the internal switches are connected to the AGND pin. Because of this, a “clean” ground is recommended Ratio CLK ...

Page 9

U U APPLICATIO S I FOR ATIO Table 2. Wideband RMS Noise f CLK 50:1 ±5V 100:1 ±5V 50:1 ±2.5V 100:1 ±2.5V 50:1 ±5V 100:1 ±5V 50:1 ±2.5V ±2.5V 100.1 50:1 ±5V 100:1 ±5V ±2.5V 50:1 ...

Page 10

LTC1060 U U DEFINITION OF FILTER FUNCTIONS 3. Highpass function: available only in mode 3 at the ouput Pins 3 (18). (Figure 3 G( OHP s(ω /Q) + ω gain ...

Page 11

W ODES OF OPERATIO Table 4. Modes of Operation: 2nd Order Functions MODE PIN 1 (20) PIN 2 (19 ...

Page 12

LTC1060 W ODES OF OPERATIO S1A 3 5 (16 – 4 – (17) – A/B 1/2 LTC1060 6 15 – CLK ...

Page 13

W ODES OF OPERATIO S1A 3 5 (18) (16 – – + (17) – A/B 1/2 LTC1060 6 15 – CLK CLK f ...

Page 14

LTC1060 W ODES OF OPERATIO R3 R2 AP2 S1A 3 5 (18) (16 – – + (17) – A/B 1/2 LTC1060 CLK ...

Page 15

W ODES OF OPERATIO LP1 S1A 3 5 (18) (16) – 4 – + (17) – A/B 1/2 LTC1060 CLK – ...

Page 16

LTC1060 COMM THE Modes 2, 2a, and 2b have a notch output which frequency can be tuned independently from the center frequency For all cases, however, f <f ...

Page 17

COMM THE mode 2b section (Figure 22), has a gain exceeding unity which limits the dynamic range of the overall filter. For very selective bandpass/bandreject filters, the mode 3a R41 R31 R21 R11 ...

Page 18

LTC1060 COMM THE LTC1060 R41 R31 R21 R11 ...

Page 19

... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCH (0.254mm) 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. ...

Page 20

... J20 0801 .496 – .512 NOTE .394 – .419 (10.007 – 10.643) N .037 – .045 (0.940 – 1.143) .004 – .012 (0.102 – 0.305) S20 (WIDE) 0502 LW/TP 1202 1K REV B • PRINTED IN USA  LINEAR TECHNOLOGY CORPORATION 1988 1060fb ...

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