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PDF ML2111 Data sheet ( Hoja de datos )
| Número de pieza | ML2111 | |
| Descripción | Universal Dual High Frequency Filter | |
| Fabricantes | Micro Linear | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ML2111 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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May 1997
ML2111*
Universal Dual High Frequency Filter
GENERAL DESCRIPTION
The ML2111 consists of two independent switched
capacitor filters that operate at up to 150kHz and perform
second order filter functions such as lowpass, bandpass,
highpass, notch and allpass. All filter configurations,
including Butterworth, Bessel, Cauer, and Chebyshev can
be formed.
The center frequency of these filters is tuned by an
external clock or the external clock and resistor ratio.
The ML2111 frequency range is specified up to 150kHz
with ±5.0V ±10% power supplies. Using a single 5.0V
±10% power supply the frequency range is up to 100kHz.
These filters are ideal where center frequency accuracy
and high Qs are needed.
The ML2111 is a pin compatible superior replacement for
MF10, LMF100, and LTC1060 filters.
FEATURES
s Specified for operation up to 150kHz
s Center frequency x Q product £ 5MHz
s Separate highpass, notch, allpass, bandpass, and
lowpass outputs
s Center frequency accuracy of ±0.4% or ±0.8% max.
s Q accuracy of ±4% or ±8% max.
s Clock inputs are TTL or CMOS compatible
s Single 5V (±2.25V) or ±5V supply operation
* Some Packages Are End Of Life and Obsolete
BLOCK DIAGRAM
INVA
4
78
3
VA+ VD+ N/AP/HPA
-+
+
AGND
15
CLKA
10
50/100HOLD
12
LEVEL SHIFT
9
CLKB
11
LEVEL NON-OVERLAP
SHIFT
CLOCK
CONTROL
LEVEL NON-OVERLAP
SHIFT
CLOCK
5
- S1A
Σ
- S2A
∫
INVB
17
-+
+
VA-
14
VD- N/AP/HPB
13 18
- S2B
Σ
- S1B
16
∫
2
BPA
∫
∫
BPB
19
1
LPA
SA/B
6
LPB
20
1
1 page  
ML2111
ELECTRICAL CHARACTERISTICS (Continued)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
FILTER, VA+ = VD+ = 2.25V, VA- = VD- = -2.25V, VIN = 0.707 x VPK (0.5 x VRMS) (Continued)
Noise (Note 3)
Bandpass
100kHz, 50:1
Figure 15 (Mode 1),
50kHz, 100:1
Q = 1, R1 = R2 = R3 = 2kW
Lowpass
100kHz, 50:1
50kHz, 100:1
Notch
100kHz, 50:1
50kHz, 100:1
Noise (Note 3)
Bandpass,
100kHz, 50:1
Figure 15 (Mode 1), Q = 10,
R1 = 20kW
50kHz, 100:1
R3 = 20kW, R2 = 2kW
Lowpass,
100kHz, 50:1
R1 = 2kW
50kHz, 100:1
Notch,
100kHz, 50:1
R1 = 2kW
50kHz, 100:1
OPERATIONAL AMPLIFIERS
105
123
122
152
117
138
265
335
270
245
65
73
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
µVRMS
VOS1
AVOL
DC Offset Voltage
DC Open Loop Gain
Gain Bandwidth Product
RL = 1kW
2 15 mV
95 dB
2.4 MHz
Slew Rate
2.0 V/µs
Output Voltage Swing (Clipping Level)
Output Short Circuit Current
RL = 2kW, |V| from VA+ or VA-
Source
0.5 1.2 V
50 mA
Sink 25 mA
CLOCK
SUPPLY
VCLK Input Low Voltage
VCLK Input High Voltage
CLKA, CLKB Pulse Width
CLKA, CLKB Pulse Width
|VD+| - |VD-| ³ 4.5V
|VD+| - |VD-| ³ .90V
0.6 V
3.0 V
100 ns
66 ns
(IA+)+(ID+) Supply Current, (VA+) + (VD+)
(IA-)+(ID-) Supply Current, (VA-) + (VD-)
ILSh Supply Current, LSh
fCLK = 5MHz
fCLK = 5MHz
fCLK = 5MHz
13 22 mA
12 21 mA
0.5 1 mA
Note 1:
Note 2:
Note 3:
Limits are guaranteed by 100% testing, sampling, or correlation with worst case test conditions.
The center frequency is defined as the peak of the bandpass output.
The noise is meassured with an HP8903A audio analyzer with a bandwidth of 700kHz, which is 7.5 times the f0 at 50:1 and 15 times the f0 at 100:1.
5
5 Page 
TYPICAL PERFORMANCE CURVES (Continued)
250
Mode 1
50:1
200 R1 = R2 = R3 = 2kΩ
BANDPASS OUTPUT
VS = ±5V
f0 = 100kHz
150 fCLK = 5MHz
100
50
0
0 100 200 300 400 500
Frequency (kHz)
Figure 7A. Noise Spectrum Density (Q = 1)
0.8
0.4
0.0 100:1
50:1
–0.4
–0.8
Mode 1
–1.2
TA = 25ºC
Q = 10
VS = ±5V
VIN = 0.707VRMS
–1.6
024
6
fCLK (MHz)
8
Figure 8. fCLK/fNOTCH vs. fCLK
10
16
Q = 10
TA = 25ºC
LSh = VSS
50:1
14
fCLK = 10MHz
fCLK = 5MHz
12 fCLK = 3MHz
10 fCLK = 250kHz
8
23456
Supply Voltage (±V)
Figure 10. Supply Current vs. Supply Voltage
ML2111
2500
2000
1500
1000
Mode 1
50:1
R1 = R3 = 20kΩ,
R2 = 2kΩ
BANDPASS OUTPUT
VS = ±5V
f0 = 100kHz
fCLK = 5MHz
500
0
0 100 200 300 400 500
Frequency (kHz)
Figure 7B. Noise Spectrum Density (Q = 10)
100
80
100:1
60
50:1
40
Mode 1
TA = 25ºC
20 Q = 10
VS = ±5V
VIN = 0.707VRMS
0
0246
fCLK (MHz)
8
Figure 9. Notch Depth vs. fCLK
10
15
Mode 1
14
VS = ±5V
fCLK = 5MHz
50:1
13
12
11
10
–40 –20
0 20 40 60
Temperature (ºC)
80 100
Figure 11. Supply Current vs. Temperature
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet ML2111.PDF ] | |
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