|
|
PDF MAX2620 Data sheet ( Hoja de datos )
| Número de pieza | MAX2620 | |
| Descripción | 10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX2620 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
|
No Preview Available !
19-1248; Rev 1; 5/98
EVAALVUAAILTAIOBNLEKIT
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
_________________General Description
The MAX2620 combines a low-noise oscillator with two
output buffers in a low-cost, plastic surface-mount,
ultra-small µMAX package. This device integrates func-
tions typically achieved with discrete components. The
oscillator exhibits low phase noise when properly
mated with an external varactor-tuned resonant tank
circuit. Two buffered outputs are provided for driving
mixers or prescalers. The buffers provide load isolation
to the oscillator and prevent frequency pulling due to
load-impedance changes. Power consumption is typi-
cally just 27mW in operating mode (VCC = 3.0V), and
drops to less than 0.3µW in standby mode. The MAX2620
operates from a single +2.7V to +5.25V supply.
________________________Applications
Analog Cellular Phones
Digital Cellular Phones
900MHz Cordless Phones
900MHz ISM-Band Applications
Land Mobile Radio
Narrowband PCS (NPCS)
____________________________Features
♦ Low-Phase-Noise Oscillator: -110dBc/Hz
(25kHz offset from carrier) Attainable
♦ Operates from Single +2.7V to +5.25V Supply
♦ Low-Cost Silicon Bipolar Design
♦ Two Output Buffers Provide Load Isolation
♦ Insensitive to Supply Variations
♦ Low, 27mW Power Consumption (VCC = 3.0V)
♦ Low-Current Shutdown Mode: 0.1µA (typ)
_______________Ordering Information
PART
MAX2620EUA
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 µMAX
MAX2620E/D
-40°C to +85°C
Dice*
*Dice are tested at TA = +25°C, DC parameters only.
Pin Configuration appears at end of data sheet.
____________________________________________________Typical Operating Circuit
VCC
10Ω
VTUNE
1k
D1
ALPHA
SMV1204-34
C17
1.5pF
1000pF
C5
1.5pF
CERAMIC
RESONATOR
L1
C6
C3
2.7pF
C4
1pF
1 VCC1
2 TANK
3 FDBK
MAX2620
4 SHDN BIAS
SUPPLY
SHDN
VCC
10nH
OUT 8
VCC2 7
GND 6
OUT 5
1000pF
1.5pF
VCC
0.1µF
1000pF
OUT TO MIXER
OUT TO SYNTHESIZER
1000pF
51Ω
VCC
900MHz BAND OSCILLATOR
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
1 page  
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
_____________________________Typical Operating Characteristics (continued)
(Per Typical Operating Circuit, VCC = +3.0V, VTUNE = 1.5V, SHDN = VCC, load at OUT = 50Ω, load at OUT = 50Ω, L1 = coaxial
ceramic resonator: Trans-Tech SR8800LPQ1357BY, C6 = 1pF, TA = +25°C, unless otherwise noted.)
REVERSE ISOLATION vs. FREQUENCY
0 VCC = 2.7V TO 5.25V
C3, C4 REMOVED
-10
-20
-30
-40
-50
-60
-70
-80
-90
50
250 450 650 850
FREQUENCY (MHz)
1050
900MHz BAND CIRCUIT*
TYPICAL 1/S11 vs. FREQUENCY
MEASURED AT TEST PORT
MAX2620-04
1050MHz
21 + j78
900MHz
36 + j90
650MHz
800MHz 84 + j142
49 + j105
*SEE FIGURE 1
10MHz BAND CIRCUIT
TYPICAL 1/S11 vs. FREQUENCY
MEASURED AT TEST PORT
MAX2620-05
15MHz
28 + j79.8
10MHz
63.6 + j121.5
5MHz
262 + j261
C3 = C4 = 270pF
L3 = 10µH
C2 = C10 = C13 = 0.01µF
SUPPLY CURRENT
vs. TEMPERATURE
10.0
9.5
VCC = 5.25V
9.0
8.5
VCC = 2.7V
8.0
7.5
7.0
-40 -20
0 20 40 60 80 100
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
5 Page 
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
________________________________________________________Package Information
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX2620.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX262 | Microprocessor Programmable Universal Active Filters | Maxim Integrated |
| MAX2620 | 10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs | Maxim Integrated |
| MAX2622 | (MAX2622 - MAX2624) Monolithic Voltage-Controlled Oscillators |  Maxim Integrated Products |
| MAX2623 | (MAX2622 - MAX2624) Monolithic Voltage-Controlled Oscillators | Maxim Integrated Products |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |