參數(shù)資料
型號： MAX2079CXE+T
廠商： Maxim Integrated Products
文件頁數(shù)： 45/49頁
文件大小： 0K
描述： IC OCT ULTRASOUND RCVR 144CTBGA
標準包裝： 1,000
系列： *
Low-Power, High-Performance, Fully Integrated
Octal Ultrasound Receiver (Octal LNA, VGA,
AAF, ADC, and CWD Beamformer)
MAX2079
5
Maxim Integrated
AC eLeCTRICAL CHARACTeRISTICS—VGA MODe (CWD BeAMFORMeR OFF) (continued)
(VREF = 2.5V, VCC3 = 3.13V to 3.47V, VCC5 = 4.5V to 5.25V, VAVDD = VOVDD = 1.7V to 1.9V, TA = 0NC to +70NC, VGND = 0V, SHDN = 0,
CWD = 0, LOON = 0, fRF = 5MHz, 50mVP-P, ADC fCLK = 50Msps, digital HPF set to 60/64, two poles, 15/16 digital gain, VGC+ -
VGC- = -3V (minimum gain), high LNA gain. Typical values are at VREF = 2.5V, VCC3 = 3.3V, VCC5 = 4.75V, VAVDD = VOVDD = 1.8V,
VGC+ - VGC- = 0V, TA = +25NC, unless otherwise noted.) (Note 3)
DC eLeCTRICAL CHARACTeRISTICS—CWD MODe (VGA, AAF, AND ADC OFF)
(VREF = 2.5V, VCC3 = 3.13V to 3.47V, VCC5 = 4.5V to 5.25V, VAVDD = VOVDD = 1.7V to 1.9V, TA = 0NC to +70NC, VGND = 0V,
SHDN = 0, CWD = 1, LOON = 1, RIN = 200I, high LNA gain, CI+, CI-, CQ+, CQ- pulled up to +11V through four separate 0.1%
120I resistors. No RF signals applied. Typical values are at VREF = 2.5V, VCC3 = 3.3V, VCC5 = 4.75V, VAVDD = VOVDD = 1.8V,
TA = +25NC, unless otherwise noted.) (Note 3)
PARAMeTeR
CONDITIONS
MIN
TYP
MAx
UNITS
Signal-to-Noise Over 2MHz
Bandwidth
VOUT_ = -1dBFS, VIN = 200mVP-P, fRF = 5MHz at -1dBFS,
anti-alias filter = 9MHz, 50Msps sample rate
76
dBFS
Near-Carrier Signal-to-Noise
Ratio
VGC+ - VGC- = 0V (gain = 22dB), fRF = 5.3MHz at
-0.5dBFS, measured at 1kHz from fRF, 50Msps sample rate
-137
dBFS/Hz
Second Harmonic (HD2)
VIN = 50mVP-P, fRF = 2MHz, ADC out = -3dBFS
-71
dBc
VIN = 50mVP-P, fRF = 5MHz, ADC out = -3dBFS
-70
IM3 Distortion
VIN = 50mVP-P, fRF1 = 5MHz, fRF2 = 5.01MHz
ADC out = -3dBFS (Note 7)
-54
dBc
Nap Mode Power-Up Response
Time
VGC+-VGC- = 0.6V (gain = 28dB), fRF = 5MHz,
ADC out = -3dBFS, settled with in 1dB from transition on
SHDN pin (includes ADC)
2
F
s
Nap Mode Power-Down
Response Time
To reach DC current target Q10%, on VCC5, VCC3, AVDD,
OVDD from transition on SHDN pin
4
F
s
Sleep Mode Power-Up
Response Time
VGC+ - VGC- = 0.6V (gain = 28dB), fRF = 5MHz,
VOUT_ = -1dBFS, settled within 1dB from transition on
SHDN
2
ms
Sleep Mode Power-Down
Response Time
VGC+ - VGC- = 0.6V (gain = 28dB), fRF = 5MHz, DC power
reaches 1mW/channel, from transition on SHDN
(includes ADC)
4
ms
Adjacent-Channel Crosstalk
VOUT_ = -3dBFS, fRF = 5MHz, VGC+ - VGC- = 0.6V
(gain = 28dB)
-60
dBc
Alternate-Channel Crosstalk
VOUT_ = -3dBFS, fRF = 5MHz, VGC+ - VGC- = 0.6V
(gain = 28dB)
-80
dBc
Phase Matching Between
Channels
VGC+-VGC- = 0.6V (gain = 28dB), fRF = 5MHz,
VOUT_ = -3dBFS
Q
1.2
Degrees
PARAMeTeR
SYMBOL
CONDITIONS
MIN
TYP
MAx
UNITS
Mixer LVDS LO Input Common-
Mode Voltage
V_LVDS_CM
Pins LO+ and LO-
1.25 Q
0.2
V
LVDS LO Differential Input
Voltage
V_LVDS_DM
Common-mode input voltage = 1.25V
(Note 8)
200
700
mVP-P
LVDS LO Input Common-Mode
Current
I_LVDS_CM
Input bias current, common-mode
input voltage = 1.25V (Note 8)
160
F
A
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