參數(shù)資料
型號(hào): MAX2683EUE
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 衰減器
英文描述: 3.5GHz Downconverter Mixers with Selectable LO Doubler
中文描述: RF/MICROWAVE DOWN CONVERTER
封裝: TSSOP-16
文件頁數(shù): 14/18頁
文件大?。?/td> 304K
代理商: MAX2683EUE
M
3.5GHz Downconverter Mixers
with Selectable LO Doubler
14
______________________________________________________________________________________
the LOX1 port. Disabling the LO doubler has the bene-
fit of reducing the supply current by 15mA. See Tables
2 and 3 for the LO input frequency ranges.
LOX1 and LOX2 are single-ended LO inputs that
achieve a return loss of typically -20dB over the speci-
fied LO input frequency range. They are internally
biased and require a DC-blocking capacitor. To
improve LOX2 input return loss, use a series inductor
between the blocking capacitor and LOX2 input. See
the
Typical Operating Circuit
for recommended compo-
nent values. See Tables 2 and 3 for LOX1 and LOX2
S-parameters. Leave the unused port unconnected.
IF Output
The MAX2683 is optimized for IF frequencies in the
100MHz to 400MHz range, while the MAX2684 is opti-
mized for IF frequencies in the 900MHz to 1000MHz
range. The differential, open-collector IFOUT- and
IFOUT+ ports require external pull-up inductors to V
CC
,
1400
0.210
-72.4
2800
0.305
-158.8
1450
0.209
LOX1
(ENX2 = V
CC
)
LOX1
FREQUENCY
(MHz)
S11 MAG
S11 PHASE
(degrees)
2700
0.296
-152.1
2600
0.281
-147.5
2500
0.266
-143.5
2400
0.249
-138.9
LOX2
(ENX2 = GND)
LOX2
FREQUENCY
(MHz)
S11 MAG
S11 PHASE
(degrees)
1350
0.212
-69.1
1300
0.215
-66.0
1250
0.219
-62.8
1200
0.225
-59.6
-75.4
2900
0.302
-167.3
1200
0.228
-64.7
2400
0.235
-135.3
1250
0.222
-68.9
2500
0.251
-139.8
1300
0.219
-71.2
2600
0.265
-143.5
1350
0.216
-74.4
2700
0.280
-147.8
1400
0.214
-77.8
2800
0.290
-152.8
1450
0.213
-81.0
2900
0.292
-157.0
1200
0.212
-75.4
2400
0.224
-132.3
1250
0.222
-63.1
2500
0.240
-136.6
1300
0.217
-66.2
2600
0.255
-140.1
1350
0.213
-69.2
2700
0.269
-143.8
1400
0.211
-72.3
2800
0.279
-147.6
1450
0.209
-75.3
2900
0.283
-150.3
R
BIAS
= 820
R
BIAS
= 1.2k
R
BIAS
= 2.0k
Table 3. MAX2684 LO Port S-Parameters (V
CC
= +5V, T
A
= +25
°
C)
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