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參數(shù)資料
| 型號(hào)： | MAX2108 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| 中文描述： | 直接變頻調(diào)諧器IC |
| 文件頁(yè)數(shù)： | 3/12頁(yè) |
| 文件大?。?/td> | 155K |
| 代理商： | MAX2108 |
M
Direc t-Conversion Tuner IC
_______________________________________________________________________________________
3
AC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V; PS_SEL = 0.5V; P
RFIN
= -20dBm; f
LO
= f
RFIN
+125kHz; GC set via servo loop for V
IOUT
- V
IOUT
= 200mVp-p (differen-
tial); T
A
= +25°C; unless otherwise noted.)
CONDITIONS
SYMBOL
PARAMETER
V
PS_SEL
> 2.4V
Prescaler Divide Ratio
Note 1:
AC specifications with minimum/maximum limits are met within this frequency range.
Note 2:
LO and
LO
are differentially driven through an AC-coupled matching network.
Note 3:
P
RFIN
= -20dBm per tone, GC set via servo loop for V
IOUT
- V
IOUT
= 20mVp-p per tone. f1
RFIN
= 1749MHz, f2
RFIN
=
1751MHz, f
LO
= 1740MHz.
Note 4:
P
RFIN
= -20dBm per tone, GC set via servo loop for V
IOUT
- V
IOUT
= 20mVp-p per tone. f1
RFIN
= 1200MHz, f2
RFIN
=
2150MHz, f
LO
= 951MHz.
UNITS
MIN
32
TYP
MAX
32
V
PS_SEL
< 0.5V
C
PSOUT
= C
PSOUT
= 10pF to GND
33
33
Vp-p
1.0
V
PSOUT -
V
PSOUT
Differential Prescaler Output
Swing
At -3dB attenuation
f
IOUT
= f
IOUT
= f
QOUT
= f
QOUT
= 20MHz
MHz
150
f
IOUT
= f
IOUT
= f
QOUT
= f
QOUT
= 125kHz
Baseband Bandwidth
33
I/Q Channel Differential
Output Impedance
degrees
3
I/Q Channel Quadrature
Phase Error (Note 2)
f
IOUT
= f
IOUT
= f
QOUT
= f
QOUT
= 125kHz
dB
1
I/Q Amplitude Mismatch
(Note 2)
f
IOUT
= f
IOUT
= f
QOUT
= f
QOUT
= 10MHz,
no output load
Vp-p
1.4
I/Q Channel Clipping Level
Typic al Operating Charac teristic s
(T
A
= +25°C, unless otherwise noted.)
90
100
95
110
105
120
115
125
4.75
4.95
4.85
5.05
5.15
5.25
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
M
V
CC
(V)
I
C
T
A
= +70°C
T
A
= +25°C
T
A
= 0°C
-80
-70
-60
-50
-40
-30
-20
-10
0
1
1.5
2
2.5
3
3.5
CARRIER LEVEL vs. GAIN CONTROL
M
GC VOLTAGE (V)
R
GC SET FOR 10mVp-p
BASEBAND OUTPUT
f
RFIN
= 1750 MHz
0
2
4
6
8
10
900
1300
1100
1500
1700
INPUT IP3 vs. FREQUENCY
M
RF FREQUENCY (MHz)
I
TWO-TONE FREQUENCY
SPACING EQUALS 2MHz
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