MAX2078CTK(2009) 查看數據表（PDF） - Maxim Integrated
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MAX2078CTK Datasheet PDF : 25 Pages
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Octal-Channel Ultrasound Front-End
with CW Doppler Mixers
DC ELECTRICAL CHARACTERISTICS—VGA MODE (continued)
(Typical Application Circuit, VREF = 2.475V to 2.525V, VCC1 = 3.13V to 3.47V, VCC2 = 4.5V to 5.25V, TA = 0°C to +70°C, VGND = 0V,
NP = 0, V/C = 1, CLP = 0, PD = 0, no RF signals applied. Typical values are at VCC1 = 3.3V, VCC2 = 4.75V, TA = +25°C, unless other-
wise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Differential Analog Control
Voltage Range
VGAIN_RANG VG+ - VG-
±3
V
Common-Mode Voltage for
Difference Analog Control
VGAIN_COMM (VG+ + VG-)/2
1.65
±5%
V
Source/Sink Current for Gain
Control Pins
I_ACONTROL Per pin
±1.6 ±2.3
µA
Reference Voltage Input
Reference Current
Output Common-Mode Level
VREF
IREF
VCMO
All channels
2.475
2.525
V
9.7
13
µA
1.73
V
DC ELECTRICAL CHARACTERISTICS—CW MODE
(Typical Application Circuit, VREF = 2.475V to 2.525V, VCC1 = 3.13V to 3.47V, VCC2 = 4.5V to 5.25V, TA = 0°C to +70°C, VGND = 0V,
NP = 0, PD = 0, CLP = 0, V/C = 0, no RF signals applied. CI_, CQ_ pulled up to 11V through four separate 0.1% 162Ω resistors.
Typical values are at VCC1 = 3.3V, VCC2 = 4.75V, TA = +25°C, unless otherwise noted.) (Note 2)
PARAMETER
Reference Current
Mixer LVDS LO Input Common-Mode
Voltage
SYMBOL
IREF
V_LVDS_CM
CONDITIONS
LO+ and LO-
MIN TYP MAX UNITS
82.7
µA
1.25
V
±0.2
LVDS LO Differential Input Voltage
V_LVDS_DM
Common-mode input voltage =
1.25V (Note 4)
200
700
mVP-P
LVDS LO Input Common-Mode
Current
I_LVDS_CM
Current out of each pin,
V_LVDS_CM = 1.25V
130
µA
LVDS LO Differential Input Resistance R_DM_LVDS (Note 5)
4
kΩ
POWER-DOWN MODE
4.75V/5V Supply Current per Channel
3.3V Supply Current per Channel
LOW-POWER MODE
4.75V/5V Supply Current per Channel
3.3V Supply Current per Channel
11V Supply Current per Channel
On-Chip Power Dissipation (All 8
Channels)
NORMAL POWER MODE
4.75V/5V Supply Current per Channel
3.3V Supply Current per Channel
11V Supply Current per Channel
On-Chip Power Dissipation (All 8
Channels)
I_C_5V_P
I_C_3_3V_P
PD = 1
PD = 1
I_C_5V_N
I_C_3_3V_N
I_C_11V_N
CLP = 1
CLP = 1
CLP = 1
PDIS_FP_TOT_N CLP = 1
I_C_5V_L
I_C_3_3V_L
I_C_11V_L
PDIS_FP_TOT_L (Note 6)
0.6
10
µA
0.1
10
µA
27
30
mA
0.4
0.95
mA
6.8
8.4
mA
1.44
1.7
W
31
34
mA
0.4
0.95
mA
11.3
13
mA
1.87
2.2
W
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