|
|
PDF MD1730 Data sheet ( Hoja de datos )
| Número de pieza | MD1730 | |
| Descripción | 8-Channel Ultra-Low Phase Noise Continuous Waveform Transmitter | |
| Fabricantes | Microchip | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MD1730 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
MD1730
8-Channel Ultra-Low Phase Noise
Continuous Waveform Transmitter with Beamformer
Features
• 8-Channel Ultrasound Continuous Waveform
(CW) Transmitter with Integrated Beamformer
• CW Output ±1V to ±6Vp-p with Low RON
• -160 dbc/Hz Ultra-Low Phase Noise at 1 kHz
Offset and 5 MHz
• 8-Bit Programmable Per-Channel Beamforming
Phase Delay
• 8-Bit Programmable Dividers for CW Frequency
with Input Clock Frequency up to 250 Mhz
• Input Clock Compatible with LVDS/SSTL or
Single-Ended LVCMOS
• LVCMOS 2.5V Logic for the Control I/O pins
• Fast SPI Interface Supports up to 200 MHz
• SPI Interface Supports Daisy Chaining and
Broadcasting Mode
Applications
• Medical Ultrasound Imaging System for
Cardiovascular Application
• Ultrasound Fetal Heart Monitoring Device
• Ultrasound Flow Meter
• Programmable Array Pattern Generator
General Description
The MD1730 is an 8-channel ultra-low phase noise CW
transmitter with integrated beamformer. It is designed
for medical ultrasound imaging systems requiring
high-performance CW Doppler mode. The MD1730
has a dedicated signal path designed to minimize
phase noise to the output. In addition, it has a
high-speed SPI interface that enables CW
beamforming features. The outputs of the MD1730 can
swing up to ±6V and each output has a separate
programmable phase delay. Additionally, by
programming the internal frequency divider register,
the MD1730 can output different CW frequencies from
a single clock source. For instance, when the input
clock frequency is 160 MHz and the frequency divider
is set to 16, an output CW frequency of 5 MHz can be
obtained with a phase delay step size of 6.25 ns, which
translates to an angular resolution of 11.25 degrees.
Package Type
MD1730
6x6x0.9 mm 36-lead VQFN*
36 35 34 33 32 31 30 29 28
EN 1
27 CW0
CLKP 2
CLKN 3
VLL 4
GND 5
VDD 6
SCK 7
26 CW1
25 CW2
EP 24 CW3
37 23 VGN
22 CW4
21 CW5
CSN 8
20 CW6
SDI 9
19 CW7
10 11 12 13 14 15 16 17 18
* Includes Exposed Thermal Pad (EP); see Table 3-1.
2016 Microchip Technology Inc.
DS20005586B-page 1
1 page  
MD1730
1.0 ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings †
Positive Logic Supply (VLL) ........................................................................................................................ -0.5V to +3.0V
Positive Supply Voltage (VDD).................................................................................................................... -0.5V to +6.0V
Positive Supply Voltage (VGP).................................................................................................................. -0.5V to +13.5V
Negative Supply Voltage (VGN)................................................................................................................ +0.5V to -13.5V
CW Output Positive Supply Voltage (VCW+) ............................................................................................... -0.5V to +12V
CW Output Negative Supply Voltage (VCW-)............................................................................................... +0.5V to -12V
All Digital Inputs (VIN)................................................................................................................................. -0.5V to +3.0V
CW Outputs (VOUT)...................................................................................................................................... -12V to +12V
Operating Ambient Temperature ................................................................................................................. 0°C to +85°C
Maximum Junction Temperature ................................................................................................................. 0°C to +85°C
Storage Temperature ............................................................................................................................................ +125°C
Thermal Resistance Junction to Ambient (ƟJA, JESD51-5)..................................................................................25°C/W
Thermal Resistance Junction to Bottom Cu Pad (ƟJB, JESD51-5) ....................................................................6.4°C/W
Thermal Resistance Junction to Package Top (ƟJC, JESD51-5).......................................................................13.5°C/W
ESD Rating All Pins ............................................................................................................................................. ±1.0 kV
† Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at those or any other conditions above those indicated in the
operational sections of this specification is not intended. Exposure to maximum rating conditions for extended periods
may affect device reliability.
TABLE 1-1: INPUT/OUTPUT PIN DC CHARACTERISTICS
Electrical Specifications: Unless otherwise indicated, VLL = +2.5V, VGP = +10V, VGN = -10V, VCW+ = +6.0V,
VCW- = -6.0V, VDD = +5V, TA = 25°C.
Parameters
Sym. Min. Typ. Max. Units
Conditions
Operating Supply
Logic Supply Voltage
VLL 2.35 2.50
VDD Supply Voltage
VDD 4.75 5.0
Positive Supply Voltage
VGP 8.0
10
Negative Supply Voltage
VGN -12 -10
CW Output Positive Supply
VCW+
1.0
—
CW Output Negative Supply
VCW-
-6.0
—
VLL Quiescent Current
ILLQ — 0.02
VDD Quiescent Current
IDDQ — 0.15
VGP Quiescent Current
IGPQ — 1.0
VGN Quiescent Current
IGNQ
—
33
VCW+ Quiescent Current
ICW+Q
—
26
VCW- Quiescent Current
ICW-Q
—
6
VLL Enabled Current
ILLEN
—
6.0
VDD Enabled Current
IDDEN
—
0.2
VGP Enabled Current
IGPEN
—
2.0
VGN Enabled Current
IGNEN
—
2.0
VCW+ Enabled Current
ICW+EN
—
2.0
VCW- Enabled Current
ICW-EN
—
2.0
Note 1: Characterized only; not 100% tested in production.
2: Design Guidance Only (DGO).
2.65
5.25
12
-8.0
6.0
-1.0
0.1
0.2
2.0
45
45
10
9.0
0.3
3.0
3.0
3.0
3.0
V (VGP+|VCW-|) ≥ 10V
V (VGN+|VCW+|) ≥ 10V
V TA= 0 to +85°C, Note 2
V
V
V
mA EN = 0, fCLK = fSCK = 0
mA All logic input no transit
µA
µA
µA
µA
mA EN = 1, fSCK = 120 MHz
mA TXRW = 0, SDI = 0,
mA SDO no load.
mA
mA
mA
2016 Microchip Technology Inc.
DS20005586B-page 5
5 Page 
3
2.5
2
1.5
1
0.5
0
0
2
FIGURE 2-7:
Frequency.
VDD = 5V,
8-ch, 220 pF,
1 kȍ
468
CW Frequency (MHz)
10
12
IVDD vs. CW Output
400
350
300
250
200
150
100
50
0
0
2
FIGURE 2-8:
Frequency.
VCW+ = 5V,
8-ch, 220 pF,
1 kȍ
4 6 8 10
CW Frequency (MHz)
12
IVCW+ vs. CW Output
400
350
300
250
200
150
100
50
0
0
2
FIGURE 2-9:
Frequency.
VCW- = -5V,
8-ch, 220 pF,
1 kȍ
468
CW Frequency (MHz)
10
12
IVCW- vs. CW Output
MD1730
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
0
2
FIGURE 2-10:
Frequency.
VLL = 10V,
8-ch, 220 pF,
1 kȍ
4 6 8 10
CW Frequency (MHz)
12
IVLL vs. CW Output
15
13
11
9
7
5
3
1
-1 0
2
FIGURE 2-11:
Frequency.
4 6 8 10
CW Frequency (MHz)
12
IVGN vs. CW Output
10
9
8
7
6
5
4
3
2
1
0
0
2
FIGURE 2-12:
Frequency.
VGP = 10V,
8-ch, 220 pF,
1 kȍ
4 6 8 10
CW Frequency (MHz)
12
IVGP vs. CW Output
2016 Microchip Technology Inc.
DS20005586B-page 11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MD1730.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MD1730 | 8-Channel Ultra-Low Phase Noise Continuous Waveform Transmitter | Microchip |
| 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 |