HMC900LP5E
v04.0811
50 MHz DUAL PROGRAMMABLE
LOW PASS FILTER with DRIVER
Features
low Noise Figure: 12 dB
High linearity: Output IP3 +30 dBm
Pre-programmed and/or Programmable Bandwidth:
3.5 MHz to 50 MHz. (Please see
“HMC900lP5e
Ordering Information”)
Integrated aDC Driver amplifier
exceptional 3 dB Bandwidth accuracy: ±2.5%
6
th
order Butterworth Magnitude & Phase Response
automatic Filter Calibration
externally Controlled Common Mode Output level
simplifies Interface
Filter Bypass Option: 100 MHz Bandwidth
Read/Write serial Port Interface (sPI)
32 lead 5x5 mm sMT Package 25 mm
2
Typical Applications
The HMC900lP5e is ideal for various modulation
systems:
• Baseband filtering before a/D or after D/a converters
for point-to-point fixed wireless or base station
transceivers (gsM/gPRs, WCDMa & TD-sCDMa)
• Integrated direct conversion receiver (DCR) when
mated with mixer and Vga
• software defined radio applications
• anti-aliasing and reconstruction filters
• Test and measurement equipment
3
IF / BaseBaND sIgNal PROCessINg
Functional Diagram
General Description
The HMC900lP5e is a 6th order, programmable
bandwidth, fully calibrated, dual low pass filter. It
features 0 or 10 dB input gain setting and supports
arbitrary bandwidths from 3.5 MHz to 50 MHz,
and when calibrated, is accurate to +/-2.5% of the
desired bandwidth. It includes a 100 MHz bandwidth
filter bypass option while retaining gain setting and
common mode control.
Housed in a compact 5x5 mm sMT QFN package,
the
HMC900lP5e
requires
minimal
exter-
nal components and provides a low cost alternative to
more complicated switched discrete filter architectures.
The integrated aDC driver and externally controlled
common mode output level further simplify system
implementations.
Filter calibration for the HMC900lP5e is accomp-
lished with any reference clock rate from 20 to 80
MHz. One time programmable (OTP) memory offers
unsurpassed flexibility allowing the user “set and
forget” parameters like gain and bandwidth setting.
Matched filter paths provide excellent quadrature
balance, making the HMC900lP5e ideal for I/Q
communications applications.
The 6th order Butterworth transfer function delivers
superior stop band rejection while maintaining both a
flat passband and minimal group delay variation.
3-1
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
2 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Phone: 781-329-4700 • Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
HMC900LP5E
v04.0811
50 MHz DUAL PROGRAMMABLE
LOW PASS FILTER with DRIVER
Table 1. Electrical Specifications
T
a
= +25°C, VDDI, VDDQ, VDDCal, VDDBg, DVDD = 5V +/-5%, gND = 0V, 400 Ω load unless otherwise stated.
Parameter
Analog Performance
Passband gain
[1]
3dB corner frequency (fc)
Programmable to any frequency in this range
3dB corner frequency variation
3dB corner frequency variation vs temperature
Max passband gain error
[2]
Max passband group delay variation
(group delay * 3dB frequency fc )
e.g. for 1.0 dB BW of 40 MHz (fc ~ 44.9 MHz):
max group delay variation = 0.400/ 44.9 MHz = 8.9 ns
min gain setting
max gain setting
[1]
Conditions
Min.
Typ.
Max.
Units
0
10
3.5
75
100
± 20
±2.5
± 3.5
±0.03
±0.5
0.250
0.350
0.400
0.400
22
22
25
25
8
8
8
8
25
17
19
12
50
dB
dB
MHz
MHz
%
%
% / °C
dB
Bypass mode
uncalibrated
calibrated
over -40°C to +85°C
vs ideal 6th order lPF H(s)
at 0.1dB BW (~0.73 fc)
at 0.5dB BW (~0.83 fc)
at 1.0dB BW (~ 0.89 fc)
at 3.0dB BW (at fc)
min gain, fc = 3.5 MHz
min gain, fc = 28 MHz
max gain fc = 3.5 MHz
max gain, fc = 28 MHz
min gain, fc = 3.5 MHz
max gain, fc = 3.5 MHz
min gain fc = 28 MHz
max gain, fc = 28 MHz
min gain
max gain
min gain
max gain
half scale tones at 0.8fc and
0.6fc
fc = 20 MHz
fc = 50 MHz
[2]
half scale tones at 1.2fc and
1.6fc. IM3 product at 0.8fc
fc = 20 MHz
fc = 50 MHz
[2]
half scale tones at 2fc and 3fc.
IM3 product at 0.5fc
fc = 20 MHz
fc = 50 MHz
[2]
half scale tones at 0.8fc and
0.6fc
fc = 20 MHz
fc = 50 MHz
half scale tones at 1.2fc and
1.6fc. IM3 product at 0.8fc
fc = 20 MHz
fc = 50 MHz
[2]
half scale tones at 2fc and 3fc.
IM3 product at fc
fc = 20 MHz
fc = 50 MHz
[2]
half scale tones at 0.8fc and
0.6fc IM2 product at 0.2fc
fc = 20 MHz
fc = 50 MHz
[2]
3
nV/rtHz
nV/rtHz
nV/rtHz
nV/rtHz
nV/rtHz
nV/rtHz
nV/rtHz
nV/rtHz
dB
dB
dB
dB
Output Noise (f = 1 MHz)
Output noise (f > 10*fc)
Noise Figure (100 Ω source)
Noise Figure (1 kΩ source)
Input referred Passband IM3
-60
-50
dBc
dBc
Input referred Out of Band IM3
-60
-50
dBc
dBc
Input referred Out of Band IM3
-50
-45
dBc
dBc
Output IP3 (inband)
25
17
30
20
dBm
dBm
Output IP3 (out of band)
25
17
30
20
dBm
dBm
Output IP3 (out of band)
25
17
30
20
dBm
dBm
Output IP2 (inband)
55
55
60
60
dBm
dBm
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
2 Elizabeth Drive, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700
Fax: 978-250-3373
978-250-3343
• Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
3-2
IF / BaseBaND sIgNal PROCessINg
HMC900LP5E
v04.0811
50 MHz DUAL PROGRAMMABLE
LOW PASS FILTER with DRIVER
Table 1. Electrical Specifications, TA = +25°C
(Continued)
Parameter
Output IP2 (out of band)
[2]
sideband suppression (Uncalibrated)
I/Q Channel Balance
magnitude
phase
I/Q Channel Isolation
Analog I/O
Differential Input Impedance
Full scale Differential Input
(400 Ω Differential load)
min gain
max gain
min gain
max gain
1
400 Ω Differential load
100 Ω Differential load
0.5
Vdd/2-1
Use doubler mode for clocks
between 20 MHz and 40 MHz
Vdd/2
1000
2
0.613
0.5
0.156
4
2
0.5
Vdd-0.5
Vdd/2+1
Ω
Vppd
Vppd
Vppd
Vppd
V
Vppd
Vppd
V
V
60
Conditions
half scale tones at 1.2fc and
1.6fc. IM2 product at 0.4fc
complex signal measured at
0.8fc vs -0.8fc
Min.
60
40
Typ.
65
45
Max.
Units
dBm
dB
dB
o
0.04
0.5
80
dB
3
IF / BaseBaND sIgNal PROCessINg
Full scale Differential Input
(100 Ω Differential load)
Input Common Mode Voltage Range
Full scale Differential Output
Full scale Differential Output
Output Voltage Range
Output Common Mode Voltage Range
Digital I/O
CalCK Frequency
CalCK Duty Cycle
sClK Frequency
Digital Input low level (VIl)
Digital Input High level (VIH)
Digital Output low level (VOl)
Digital Output High level (VOH)
Power supply
supply Current
Power on Reset
20
40
40
50
20
80
60
30
0.4
MHz
%
MHz
V
V
1.5
0.4
Vdd - 0.4
analog & Digital supplies
4.75
5
130
250
5.25
V
V
ma
us
[1] The attenuation of the filter transfer function can be calculated directly at any frequency f as: attenuation = 10*log
10
(1+(f/f
0
)
^(2*6)
), where
f
0
is the 3dB bandwidth or corner frequency for the filter. similarly, for a given maximum attenuation and 3dB bandwidth, f
0
, the frequency
at which the attenuation is achieved can be calculated as: f=(10
^(attenuation/10)
-1)^
(1/(2*6))
* f
0
. Note that for a 6th order Butterworth filter the
1dB bandwidth is at ~89% of the filter bandwidth and 0.5dB bandwidth is at 84% of the filter bandwidth.
[2] specified distortion is measured with in “high linearity” mode with opamp_bias[1:2]=2 and drvr_bias[1:0] = 2. see
Reg 02h.
Table 2. Test Conditions
Unless otherwise specified, the following test conditions were used
Parameter
Temperature
Filter Bandwidth setting
gain setting
bias settings (opamp_bias[1:0]/ drvr_bias[1:0])
Input signal level
Input/Output Common Mode level
Output load
supply
Condition
+25 °C
20 MHz
0 dB
01/10
2 Vppd
2.5V
200Ω / Output
analog: +5V, Digital +5V
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
2 Elizabeth Drive, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700
Fax: 978-250-3373
978-250-3343
• Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
3-3
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
HMC900LP5E
v04.0811
50 MHz DUAL PROGRAMMABLE
LOW PASS FILTER with DRIVER
Figure 2. Filter Noise Figure vs Bandwidth
[1]
26
24
Figure 1. Filter Attenuation
(all Bandwidths)
0
-20
3.5 MHz
FILTER GAIN (dB)
0 dB Gain
-40
Bypass
3.5MHz
5MHz
7MHz
10MHz
14MHz
20MHz
28MHz
35MHz
50MHz
1
FREQUENCY (MHz)
NOISE FIGURE (dB)
22
20
-60
+27C
+85C
-40C
10 dB Gain
50 MHz
18
-80
16
-100
0.1
14
10
100
3.5
5
7
10
14
20
28
35
50
FILTER BANDWIDTH (MHz)
3
50 MHz
0.3
100
0.2
0.1
FILTER GAIN (dB)
0
-0.1
-0.2
-0.3
-0.4
-0.5
1
3.5 MHz
3.5MHz
7MHz
5MHz
10MHz
14MHz
20MHz
28MHz
35MHz
50MHz
50 MHz
3.5MHz
5MHz
7MHz
10MHz
14MHz
20MHz
28MHz
35MHz
50MHz
10
3.5 MHz
10
FREQUENCY (MHz)
100
0.001
0.01
0.1
1
FREQUENCY (MHz)
10
100
Figure 5. Filter 3 dB Cutoff vs
Temperature, 10 MHz Bandwidth
5
+27C
+85C
-40C
FILTER GAIN (dB)
0
Figure 6. Filter Side Band Rejection vs
Bandwidth
55
SIDEBAND REJECTION (dBc)
0dB
10dB
50
-3dB
-5
45
-10
5
6
7
8
9
10
20
40
3.5
5
7
10
14
20
28
35
50
FREQUENCY (MHz)
FILTER BANDWIDTH (MHz)
[1] Measured with 100 Ω source impedance
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
2 Elizabeth Drive, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700
Fax: 978-250-3373
978-250-3343
• Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
3-4
IF / BaseBaND sIgNal PROCessINg
Figure 3. Filter Passband Gain Response
Figure 4. Filter Output Noise
OUTPUT NOISE (nV/rtHz)
HMC900LP5E
v04.0811
50 MHz DUAL PROGRAMMABLE
LOW PASS FILTER with DRIVER
Figure 8. In-band OIP3
[1]
and OIP2
[1]
vs
Temperature, 0 dB Gain (high linearity)
45
OUTPUT IP2
75
40
OUTPUT IP3 (dBm)
70
Figure 7. In-band OIP3
[1]
& OIP2
[1]
vs
Temperature, 0 dB Gain (standard bias)
45
OUTPUT IP2
40
OUTPUT IP3 (dBm)
70
OUTPUT IP2 (dBm)
75
35
65
35
OUTPUT IP2 (dBm)
65
30
OUTPUT IP3
60
30
OUTPUT IP3
60
25
55
25
55
20
-40C
-40C
+27C
85C
+85C
27C
3.5
5
7
10
14
20
28
FILTER BANDWIDTH (MHz)
35
50
50
20
-40C
-40C
+27C
85C
+85C
27C
5
7
10
14
20
28
35
50
50
15
45
15
3.5
45
FILTER BANDWIDTH (MHz)
3
IF / BaseBaND sIgNal PROCessINg
Figure 9. In-band OIP3
[1]
and OIP2
[1]
vs
Bandwidth (standard bias)
45
70
40
OUTPUT IP2
60
65
Figure 10. In-band OIP3
[1]
and OIP2
[1]
vs
Bandwidth (high linearity)
45
70
40
OUTPUT IP2
60
65
OUTPUT IP3 (dBm)
35
OUTPUT IP3 (dBm)
35
OUTPUT IP2 (dBm)
OUTPUT IP2 (dBm)
30
OUTPUT IP3
25
55
30
OUTPUT IP3
25
55
50
0dB
0dB
10dB
10dB
50
20
45
20
0dB
10dB
10dB
5
7
10
14
20
28
35
50
45
15
3.5
40
5
7
10
14
20
28
35
50
FILTER BANDWIDTH (MHz)
15
3.5
40
FILTER BANDWIDTH (MHz)
Figure 11. Out-of-band OIP3
[1]
and
OIP2
[1]
vs Bandwidth (standard bias)
50
45
40
OUTPUT IP2 (dBm)
70
35
30
25
20
15
3.5
0dB
10dB
10dB
60
OUTPUT IP2
80
Figure 12. Out-of-band OIP3
[1]
and
OIP2
[1]
vs Bandwidth (high linearity)
55
50
OUTPUT IP2
45
75
OUTPUT IP2 (dBm)
70
65
60
55
50
45
5
7
10
14
20
28
35
50
FILTER BANDWIDTH (MHz)
85
80
OUTPUT IP3 (dBm)
OUTPUT IP3 (dBm)
40
35
30
25
OUTPUT IP3
50
OUTPUT IP3
20
0dB
0dB
10dB
10dB
40
5
7
10
14
20
28
35
50
FILTER BANDWIDTH (MHz)
15
3.5
[1] OIP3 and OIP2 measured into 400 Ω differential load. OIP3 and OIP2 can be translated from dBm into dBVrms as follows:
IPx [dBVrms] = IPx [dBm] -4 dB
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
3-5
For price, delivery, and to place orders: Analog Devices, Inc.,
For price, delivery, and to place orders, please contact Hittite
Way, P.O. Box 9106, Norwood, MA 02062-9106
Microwave Corporation:
One Technology
2 Elizabeth Drive, Chelmsford, MA 01824 Phone:
Phone: 781-329-4700
Fax: 978-250-3373
978-250-3343
• Order online at www.analog.com
Application Support: Phone: 1-800-ANALOG-D
Order On-line at www.hittite.com
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