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參數(shù)資料
| 型號： | MAX2078CTK+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 10/26頁 |
| 文件大小： | 0K |
| 描述： | IC FRNT-END ULTRASOUND 8CH 68QFN |
| 應(yīng)用說明： | Ultrasound Imaging Systems Application Note |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 特色產(chǎn)品： | MAX2078 Octal-Channel Ultrasound Front-End with CW Doppler Mixers |
| 標(biāo)準(zhǔn)包裝： | 30 |
| 類型： | 超聲波接收器 |
| 應(yīng)用： | 醫(yī)療用超聲波成像，聲納 |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 68-TQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 68-TQFN-EP（10x10） |
| 包裝： | 管件 |
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MAX2078
Each mixer can be programmed to 1 of 16 phases;
therefore, 4 bits are required for each channel for pro-
gramming. Each CW channel can be programmed to
an off state by setting bit Di to 1. The power-down
mode (PD) line overrides this soft shutdown.
After the serial shift registers have been programmed,
the
CS signal, when going high, loads the phase infor-
mation in the form of 5 bits per channel into the I/Q
phase divider/selectors. This presets the dividers,
selecting the appropriate mixer phasing. See Table 3
for mixer phase configurations.
CW Mixer Output Summation
The outputs from the octal-channel mixer array are
summed internally to produce the total CWD summed
beamformed signal. The octal array produces eight
differential quadrature (Q) outputs and eight differential
in-phase (I) outputs. All quadrature and in-phase out-
puts are summed into single I and Q differential current
outputs (CQ+, CQ-, CI+, CI-).
LO Phase Select
The LO phase dividers can be programmed through
the shift registers to allow for 16 quadrature phases for
a complete CW beamforming solution.
Synchronization
Figure 1 illustrates the serial programming of the eight
individual channels through the serial data port. Note
that the serial data can be daisy-chained from one part
to another, allowing a single data line to be used to pro-
gram multiple chips in the system.
Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
18
______________________________________________________________________________________
PER CHANNEL
MSB
LSB
SHUTDOWN
PHASE (DEGREE)
Di + 4
Di + 3
Di + 2
Di + 1
Di
0
0/1
22.5
1
0
0/1
45
0
1
0
0/1
67.5
1
0
0/1
90
0
1
0
0/1
112.5
1
0
1
0
0/1
135
01
10
0/1
157.5
1
0
0/1
180
00
01
0/1
202.5
1
0
1
0/1
225
01
0/1
247.5
1
0
1
0/1
270
00
11
0/1
292.5
1
0
1
0/1
315
01
11
0/1
337.5
1
0/1
Table 3. Mixer Phase Configurations
CHANNEL 1
DIN
DOUT
CLK
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 2
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 3
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 4
AB
C
DSD
B3 B2 B1 B0
B4
D43
D42
D41
D40
D44
D45
D46
CHANNEL 5
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 6
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 7
AB
C
DSD
B3 B2 B1 B0
B4
CHANNEL 8
AB
C
DSD
B3 B2 B1 B0
B4
Figure 1. Data Flow of Serial Shift Register
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2078CTK+ | 功能描述:射頻前端 8Ch Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數(shù)據(jù)速率:54 Mbps 噪聲系數(shù): 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-32 |
| MAX2078CTK+T | 功能描述:射頻前端 8Ch Ultrasound Front-End RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數(shù)據(jù)速率:54 Mbps 噪聲系數(shù): 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-32 |
| MAX2078EVKIT | 功能描述:射頻前端 Ultrasound Integrated Analog Front End Octal LNA RoHS:否 制造商:Skyworks Solutions, Inc. 類型: 工作頻率:2.4 GHz, 5 GHz 最大數(shù)據(jù)速率:54 Mbps 噪聲系數(shù): 工作電源電壓:3.3 V 電源電流:180 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-32 |
| MAX2079 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:每個通道具有獨立的混頻器，以優(yōu)化CWD靈敏度 |
| MAX2079CXE+ | 功能描述:射頻接收器 8Ch Ultrasound Front End w/ADC+CW Doppler RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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