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PDF LTC2230 Data sheet ( Hoja de datos )
| Número de pieza | LTC2230 | |
| Descripción | (LTC2230 / LTC2231) Electrical Specifications Subject to Change | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LTC2230 (archivo pdf) en la parte inferior de esta página. Total 28 Páginas | ||
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Electrical Specifications Subject to Change
LTC2230/LTC2231
10-Bit,170Msps/
135Msps ADCs
FEATURES
DESCRIPTIO
■ Sample Rate: 170Msps/135 Msps
The LTC®2230 and LTC2231 are 170Msps/135Msps, sam-
■ 61dB SNR up to 140MHz Input
pling 10-bit A/D converters designed for digitizing high
■ 75dB SFDR up to 200MHz Input
frequency, wide dynamic range signals. The LTC2230/
■ 775MHz Full Power Bandwidth S/H
LTC2231 are perfect for demanding communications
■ Single 3.3V Supply
applications with AC performance that includes 61dB SNR
■ Low Power Dissipation: 890mW/660mW
and 75dB spurious free dynamic range for signals
■ LVDS, CMOS, or Demultiplexed CMOS Outputs
■ Selectable Input Ranges: ±0.5V or ±1V
up to 200MHz. Ultralow jitter of 0.15psRMS allows
undersampling of IF frequencies with excellent noise
■ No Missing Codes
performance.
■ Optional Clock Duty Cycle Stabilizer
■ Shutdown and Nap Modes
■ Data Ready Output Clock
■ Pin Compatible Family
DC specs include ±0.2LSB INL (typ), ±0.1LSB DNL (typ)
and no missing codes over temperature. The transition
noise is a low 0.12LSBRMS.
170Msps: LTC2220 (12-Bit), LTC2230 (10-Bit)
The digital outputs can be either differential LVDS, or
135Msps: LTC2221 (12-Bit), LTC2231 (10-Bit)
single-ended CMOS. There are three format options for
■ 64-Pin 9mm x 9mmQFN Package
U
APPLICATIO S
the CMOS outputs: a single bus running at the full data rate
or two demultiplexed buses running at half data rate with
DataShee
DataSheet4eUit.hceorminterleaved or simultaneous update. A separate
output power supply allows the CMOS output swing to
■ Wireless and Wired Broadband Communication
range from 0.5V to 3.3V.
■ Cable Head-End Systems
■ Power Amplifier Linearization
■ Communications Test Equipment
The ENC+ and ENC– inputs may be driven differentially or
single ended with a sine wave, PECL, LVDS, TTL, or CMOS
inputs. An optional clock duty cycle stabilizer allows high
, LTC and LT are registered trademarks of Linear Technology Corporation.
performance at full speed for a wide range of clock duty
cycles.
TYPICAL APPLICATIO
3.3V
VDD
REFH
REFL
FLEXIBLE
REFERENCE
ANALOG
INPUT
+
INPUT
S/H
–
10-BIT
PIPELINED
ADC CORE
CORRECTION
LOGIC
CLOCK/DUTY
CYCLE
CONTROL
DataSheet4U.com ENCODE INPUT
OUTPUT
DRIVERS
0.5V
TO 3.3V
OVDD
D9
•
•
•
D0
CMOS
OR
LVDS
OGND
22301 TA01
SFDR vs Input Frequency
90
85
80
75
70
65
60
55
50
45
40
0
4th OR HIGHER
2nd OR 3rd
100 200 300 400 500 600
INPUT FREQUENCY (MHz)
2230 TA01b
22301p
1
1 page  
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LTC2230/LTC2231
POWER REQUIRE E TS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 9)
SYMBOL
PARAMETER
CONDITIONS
LTC2230
MIN TYP MAX
LTC2231
MIN TYP MAX
UNITS
VDD Analog Supply Voltage
PSHDN
Shutdown Power
PNAP Nap Mode Power
LVDS OUTPUT MODE
SHDN = H, OE = H, No CLK
SHDN = H, OE = L, No CLK
● 3.1 3.3 3.5
2
35
3.1 3.3 3.5
2
35
V
mW
mW
OVDD
Output Supply Voltage
IVDD Analog Supply Current
IOVDD
Output Supply Current
PDISS
Power Dissipation
CMOS OUTPUT MODE
● 3 3.3 3.6
● 264 290
● 55 61
● 1050 1160
3 3.3 3.6
196 216
55 61
828 915
V
mA
mA
mW
OVDD
Output Supply Voltage
● 0.5 3.3 3.6
0.5 3.3 3.6
V
IVDD Analog Supply Current
● 264 290
196 216
mA
PDISS
Power Dissipation
890 660 mW
WU
TI I G CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
et4U.com
SYMBOL
PARAMETER
CONDITIONS
LTC2230
MIN TYP MAX
LTC2231
MIN TYP MAX
DataShee
UNITS
fS Sampling Frequency
DataSheet4U.c●om 1
170 1
135 MHz
tL ENC Low Time
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
● 2.8 2.94 500
● 2 2.94 500
3.5 3.7 500
2 3.7 500
ns
ns
tH ENC High Time
Duty Cycle Stabilizer Off
Duty Cycle Stabilizer On
● 2.8 2.94 500
● 2 2.94 500
3.5 3.7 500
2 3.7 500
ns
ns
tAP Sample-and-Hold Aperture Delay
tOE Output Enable Delay
LVDS OUTPUT MODE
(Note 7)
0
● 5 10
0
5 10
ns
ns
tD ENC to DATA Delay
(Note 7)
● 1.3 2.2 3.5
1.3 2.2 3.5
ns
tC
ENC to CLOCKOUT Delay
(Note 7)
● 1.3 2.2 3.5
1.3 2.2 3.5
ns
DATA to CLOCKOUT Skew
(tC - tD) (Note 7)
● –0.6 0 0.6 –0.6 0 0.6
ns
Rise Time
0.5 0.5 ns
Fall Time
0.5 0.5 ns
Pipeline Latency
5 5 Cycles
CMOS OUTPUT MODE
tD ENC to DATA Delay
tC ENC to CLOCKOUT Delay
DATA to CLOCKOUT Skew
Pipeline Latency Full Rate CMOS
(Note 7)
(Note 7)
(tC - tD) (Note 7)
● 1.3
● 1.3
● –0.6
2.1
2.1
0
5
3.5
3.5
0.6
1.3 2.1
1.3 2.1
–0.6 0
5
3.5
3.5
0.6
ns
ns
ns
Cycles
Demuxed Interleaved
5 5 Cycles
Demuxed Simultaneous
5 and 6
5 and 6
Cycles
DataSheet4U.com
22301p
5
5 Page 
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC2230/LTC2231
LTC2231: 8192 Point FFT,
fIN = 30MHz, –1dB, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G14
et4U.com
LTC2231: 8192 Point FFT,
fIN = 70MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G17
LTC2231: 8192 Point FFT,
fIN = 30MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G15
LTC2231: 8192 Point FFT,
fIN = 140MHz, –1dB, 2V Range
0
– 10
– 20
– 30
–40 DataSheet4U.com
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G18
LTC2231: 8192 Point FFT,
fIN = 70MHz, –1dB, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G16
LTC2231: 8192 Point FFT,
fIN = 140MHz, –1dB, 1V Range
0
– 10
–20 DataShee
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G19
LTC2231: 8192 Point FFT,
fIN = 250MHz, –1dB, 2V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G20
DataSheet4U.com
LTC2231: 8192 Point FFT,
fIN = 250MHz, –1dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G21
LTC2231: 8192 Point FFT,
fIN = 500MHz, –6dB, 1V Range
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
– 120
0 5 10 15 20 25 30 35 40 45 50 55 60 65
FREQUENCY (MHz)
2231 G22
22301p
11
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet LTC2230.PDF ] | |
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