參數(shù)資料
型號： MAX2038CCQ+T
廠商： Maxim Integrated Products
文件頁數(shù)： 19/24頁
文件大小： 0K
描述： IC VGA W/OCTAL MIXER 8CH 100TQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 250
類型： 可變增益放大器
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： 100-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 100-TQFP-EP（14x14）
包裝： 帶卷 (TR)
MAX2038
Ultrasound VGA Integrated
with CW Octal Mixer
4
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS—VGA MODE
(
Typical Application Circuit, Figure 7. VCC = VREF = 4.75V to 5.25V, VCM = (3/5)VREF, TA = 0
°C to +70°C, VGND = 0V, LOW_PWR = 0,
M4_EN = 0, CW_FILTER = 1, TEST_MODE = 0, PD = 0, CW_VG = 1, CW_M1 = 0, CW_M2 = 0, VG_CLAMP_MODE = 1, fRF = fLO/16
= 5MHz, capacitance to GND at each of the VGA differential outputs is 60pF, differential capacitance across the VGA outputs is
10pF, RL = 1k
Ω, CW mixer outputs pulled up to +11V through four separate ±0.1% 115Ω resistors, differential mixer inputs are driven
from a low impedance source. Typical values are at VCC = VREF = 5V, TA = +25
°C, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Mode Select Response Time
CW_VG set from logic 1 to 0 or from 0 to 1
(Note 9)
2s
VGA MODE
Differential output
capacitance is 10pF,
capacitance to GND
at each single-ended
output is 60pF,
RL = 1k
Ω
18
Full-Scale Bandwidth
f-1.3dB
VOUT = 1.5VP-P,
1.3dB bandwidth,
gain = 10dB
No capacitive load
RL = 1k
Ω
29
MHz
Small-Signal Bandwidth
f-1.3dB
VOUT = 1.5mVP-P, 3dB bandwidth,
gain = 10dB
30
MHz
Differential Input Resistance
RIN
170
200
230
Ω
Input Effective Capacitance
CIN
fRF = 10MHz, each input to ground
15
pF
Differential Output Resistance
ROUT
100
Ω
Maximum Gain
+29.5
dB
Minimum Gain
-12.5
dB
Gain Range
42
dB
Absolute Gain Error
TA = +25
°C, full gain range 0% to 100%,
VREF = 5V
±0.25
±1.5
dB
VGA Gain Response Time
40dB gain change to within 1dB final value
1
s
Input-Referred Noise
VG_CTL set for maximum gain,
no input signal
2
nV/
√Hz
No input signal
22
Output-Referred Noise
VG_CTL set for
+10dB of gain
VOUT = 1.5VP-P, 1kHz
offset
55
nV/
√Hz
VG_CLAMP_MODE = 1, VG_CTL set for
+10dB of gain, fRF = 5MHz, VOUT = 1.5VP-P
-70
Second Harmonic
HD2
VG_CLAMP_MODE = 1, VG_CTL set for
+10dB of gain, fRF = 10MHz, VOUT = 1.5VP-P
-55
-65
dBc
Third-Order Intermodulation
Distortion
IMD3
VG_CLT set for +10dB of gain, fRF1 = 5MHz,
fRF2 = 5.01MHz, VOUT = 1.5VP-P,
VREF = 5V (Note 3)
-40
-52
dBc
Channel-to-Channel Crosstalk
VOUT = 1VP-P differential, fRF = 10MHz,
VG_CTL set for +10dB of gain
-80
dB
Maximum Output Voltage at
Clamp ON
VG_CLAMP_MODE = 0, VG_CTL set for
+20dB of gain, 350mVP-P differential input
2.4
VP-P
differential
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