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PDF LTM9001 Data sheet ( Hoja de datos )
| Número de pieza | LTM9001 | |
| Descripción | 16-Bit IF/Baseband Receiver Subsystem | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
n Integrated 16-Bit, High-Speed ADC, Passive Filter
and Fixed Gain Differential Amplifier
n Up to 300MHz IF Range
Low-Pass and Bandpass Filter Versions
n Low Noise, Low Distortion Amplifiers
Fixed Gain: 8dB, 14dB, 20dB or 26dB
50Ω, 200Ω or 400Ω Input Impedance
n 72dB SNR, 82dB SFDR (LTM9001-AA)
n Integrated Bypass Capacitance, No External
Components Required
n Optional Internal Dither
n Optional Data Output Randomizer
n LVDS or CMOS Outputs
n 3.3V Single Supply
n Power Dissipation: 1.65W
n Clock Duty Cycle Stabilizer
n 11.25mm × 11.25mm × 2.32mm LGA Package
APPLICATIONS
n Telecommunications
n High Sensitivity Receivers
n Cellular Base Stations
n Spectrum Analyzers
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other
trademarks are the property of their respective owners.
LTM9001
16-Bit IF/Baseband
Receiver Subsystem
DESCRIPTION
The LTM®9001 is an integrated System in a Package (SiP)
that includes a high-speed 16-bit A/D converter, matching
network, anti-aliasing filter and a low noise, differential
amplifier with fixed gain. It is designed for digitizing wide
dynamic range signals with an intermediate frequency (IF)
range up to 300MHz. The amplifier allows either AC- or
DC-coupled input drive. A low-pass or bandpass filter
network can be implemented with various bandwidths.
Contact Linear Technology regarding semi-custom con-
figurations.
The LTM9001 is perfect for IF receivers in demanding
communications applications, with AC performance that
includes 72dBFS noise floor and 82dB spurious free dy-
namic range (SFDR) at 162.5MHz (LTM9001-AA).
The digital outputs can be either differential LVDS or
single-ended CMOS. There are two format options for the
CMOS outputs: a single bus running at the full data rate or
demultiplexed buses running at half data rate. A separate
output power supply allows the CMOS output swing to
range from 0.5V to 3.3V.
The differential ENC+ and ENC– inputs may be driven with
a sine wave, PECL, LVDS, TTL or CMOS inputs. An optional
clock duty cycle stabilizer allows high performance at full
speed with a wide range of clock duty cycles.
TYPICAL APPLICATION
Simplified IF Receiver Channel
VCC
RF
LO
SAW
IN–
ANTI-ALIAS
FILTER
IN+
DIFFERENTIAL
FIXED GAIN
AMPLIFIER
GND
SENSE VDD = 3.3V
LTM9001
0VDD = 0.5V TO 3.6V
16-BIT
130Msps ADC
CLKOUT
OF
D15
•
CMOS
• OR
• LVDS
D0
ENC+ ENC–
ADC CONTROL PINS
9001 TA01
OGND
64k Point FFT, FIN = 162.4MHz,
–1dBFS, PGA = 1
0
–20
–40
–60
–80 HD3 HD2
–100
–120
0 4096
12288 20480 28672
FFT BIN NUMBER (32k TOTAL)
9001 TA01b
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LTM9001
DIGITAL INPUTS AND OUTPUTS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
ISOURCE
ISINK
OVDD = 2.5V
VOH
Output Source Current
Output Sink Current
High Level Output Voltage
VOL
OVDD = 1.8V
VOH
VOL
Low Level Output Voltage
High Level Output Voltage
Low Level Output Voltage
Logic Outputs (LVDS Mode)
CONDITIONS
VOUT = 0V
VOUT = 3.3V
VDD = 3.3V, IO = –200μA
VDD = 3.3V, IO = 1.6mA
VDD = 3.3V, IO = –200μA
VDD = 3.3V, IO = 1.6μA
MIN TYP MAX UNITS
–50 mA
50 mA
2.49 V
0.1 V
1.79 V
0.1 V
Standard LVDS
VOD
VOS
Low Power LVDS
VOD
VOS
Differential Output Voltage
Output Common Mode Voltage
Differential Output Voltage
Output Common Mode Voltage
100Ω Differential Load
100Ω Differential Load
100Ω Differential Load
100Ω Differential Load
l 247 350 454
l 1.125 1.2 1.375
l 125 175 250
l 1.125 1.2 1.375
mV
V
mV
V
POWER REQUIREMENTS The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
VDD ADC Analog Supply Voltage
VCC Amplifier Supply Voltage
ICC Amplifier Supply Current
PSHDN
Total Shutdown Power
Standard LVDS Output Mode
(Note 9)
AMPSHDN = ADCSHDN = 3.3V
l 3.135 3.3 3.465
2.85 3.5
l 100 136
10
V
V
mA
mW
OVDD
IVDD
Output Supply Voltage
Analog Supply Current
IOVDD
PDISS
Output Supply Current
Power Dissipation
Low Power LVDS Output Mode
(Note 9)
LTM9001-AA
LTM9001-BA
LTM9001-AA
LTM9001-BA
l3
l
l
l
l
l
3.3 3.6
400 500
465 550
74 90
1564 1947
1779 2112
V
mA
mA
mA
mW
mW
OVDD
IVDD
Output Supply Voltage
Analog Supply Current
IOVDD
PDISS
Output Supply Current
Power Dissipation
CMOS Output Mode
(Note 9)
LTM9001-AA
LTM9001-BA
LTM9001-AA
LTM9001-BA
l3
l
l
l
l
l
3.3 3.6
400 500
465 550
41 50
1455 1815
1670 1980
V
mA
mA
mA
mW
mW
OVDD
IVDD
Output Supply Voltage
Analog Supply Current
(Note 9)
LTM9001-AA
LTM9001-BA
l 0.5
3.6
l 380 450
l 460 530
V
mA
mA
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TYPICAL PERFORMANCE CHARACTERISTICS (LTM9001-BA)
LTM9001
Differential Non-Linearity (DNL)
vs Output Code
1.0
0.8
0.6
0.4
0.2
0.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
16384 32768 49152
OUTPUT CODE
65536
9001 G17
Best Fit Integral Non-Linearity
(INL) vs Output Code
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
–3.5
–4.0
0
16384 32768 49152 65536
OUTPUT CODE
9001 G18
SNR vs Frequency
71
69
67
65
63
61
59
57
55
53
51
1 10 100
IF FREQUENCY (MHz)
1000
9001 G19
Input Impedance vs Frequency
400
MAGNITUDE
350
300
PHASE
250
0
–8
IF Frequency Response
0
–5
–10
200 –16 –15
150
–20
100 –24
–25
50
0 –32
1 10 100 1000
FREQUENCY (MHz)
9001 G20
–30
1
10 100
IF FREQUENCY (MHz)
1000
9001 G21
64k Point FFT, fIN = 140MHz,
–1dBFS, PGA = 0, RAND “Off”,
Dither “Off”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
HD3
HD2
10 20 30 40 50 60
FREQUENCY (MHz)
9001 G22
64k Point FFT, fIN = 250MHz,
–1dBFS, PGA = 0, RAND “Off”,
Dither “Off”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
HD3
HD2
10 20 30 40 50 60 70 80
FREQUENCY (MHz)
9001 G23
64k Point 2-Tone FFT, fIN = 136MHz,
–7dBFS Per Tone, PGA = 0, RAND
“Off”, Dither “Off”
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
10 20 30 40 50 60
FREQUENCY (MHz)
9001 G24
9001fa
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11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LTM9001.PDF ] | |
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