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參數(shù)資料
| 型號： | MAX2104 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Buffers/Drivers With 3-State Outputs 48-TSSOP -40 to 85 |
| 中文描述： | 直接變頻調(diào)諧器IC，適合數(shù)字DBS應用 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 148K |
| 代理商： | MAX2104 |
M
Direct-Conversion Tuner IC for
Digital DBS Applications
_______________________________________________________________________________________
5
Note 1:
Note 2:
Note 3:
Note 4:
Minimum and maximum values are guaranteed by design and characterization over supply voltage.
With external 100
termination resistor.
Driving differential load of 10k
|| 15pF.
Two signals are applied to RFIN_ at f
LO
- 100MHz and f
LO
- 199MHz. V
GC2
= 1V; V
GC1
is set such that the baseband out-
puts are at 590mV
P-P
. IM products are measured at baseband outputs but are referred to RF inputs.
Two signals are applied to RFIN_ at 1200MHz and 2150MHz. V
GC2
= 1V, V
GC1
is set such that the baseband outputs are
at 590mV
P-P
. IM products are measured at baseband outputs but are referred to RF inputs.
P
RFIN_
= -40dBm so that front end IM contributions are minimized.
Using L64733/L64734 demo board from LSI Logic.
Downconverted level, in dBc, of carrier present at f
LO
x 2, f
LO
= 1180MHz, f
VCO
= 590MHz, V
FDOUB
= 2.4V.
Downconverted level, in dBc, of carrier present at f
O
/ 2, f
LO
= 2175MHz, f
VCO
= 1087.5MHz, V
FDOUB
= 2.4V.
Note 10:
Leakage is dominated by board parasitics.
Note 11:
V
CPG1
= V
CPG2
= V
FDOUB
= V
INSEL
= 0.5V, f
FLCLK
= 0.5MHz.
Note 12:
Measured at tuned frequency with PLL locked. All phase noise measurements assume tank components have a Q > 50.
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 4.75V to 5.25V, V
IOUT_
= V
QOUT_
= 0.59V
P-P
, C
IOUT_
= C
QOUT_
= 10pF, f
FLCLK
= 2MHz, R
IOUT_
= R
QOUT_
= 10k
,
V
FDOUB
= V
INSEL
= V
CPG1
= V
CPG2
= 2.4V, V
PLLIN+
= V
MOD+
= 1.3V, V
PLLIN-
= V
MOD-
= 1.1V, T
A
= +25°C. Typical values are at
V
CC
= 5.0V and T
A
= +25°C, unless otherwise noted.)
LOCAL OSCILLATOR
LO Tuning Range (Note 1)
SYNTHESIZER
XTLOUT Output Voltage Swing
XTLOUT Output Voltage DC
-95
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
At 100kHz offset, f
LO
= 2175MHz
dBc/Hz
LO Phase Noise (Notes 7, 12)
-75
At 10kHz offset, f
LO
= 2175MHz
57
0
Figure 1
f
RFIN_
= 2150MHz
dB
RFIN_ to LO Input Isolation
(Note 10)
-55
590
1180
MHz
ns
4
7
7.26
MHz
ns
Crystal Frequency Range (Note 1)
MOD+, MOD- Setup Time (Note 1)
2
0.75
1
1.5
Load = 10pF
||
10k
, f
XTLOUT
= 6MHz
V
P-P
V
At 1kHz offset, f
LO
= 2175MHz
MOD+, MOD- Hold Time (Note 1)
t
HM
Figure 1
CONDITIONS
t
SUM
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