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參數(shù)資料
| 型號(hào)： | MAX2100 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Quadrature Digitizer Circuits(正交數(shù)字轉(zhuǎn)換器電路) |
| 中文描述： | 正交數(shù)字轉(zhuǎn)換電路（正交數(shù)字轉(zhuǎn)換器電路） |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 72K |
| 代理商： | MAX2100 |
M
IF Amplifier with Variable Gain
_______________________________________________________________________________________
3
____________________________Features
o
24dB Gain
o
800MHz Bandwidth
o
Over 40dB of Gain Range
_________________________Desc ription
The X2112 IF Amplifier with Variable Gain cell compris-
es a differential input amplifier with 10dB insertion gain,
an AGC amp with 40dB of control range, and a second
IF amp with 12dB gain. The differential input can be
driven single-ended by proper AC grounding or by ter-
minating the inverting input. There is sufficient linearity
to provide IIP3 of +10dBm at minimum AGC setting.
Cell Dimensions: 780μm x 725μm
AGC IN
X2112 IF AMPLIFIER WITH VARIABLE GAIN
IF IN
OUT
X2112
KEY ELECTRICAL CHARACTERISTICS
(T
A
= 0°C to +70°C, unless otherwise noted.)
_____________________Bloc k Diagram
PORT LIST
f = 650MHz, V
AGC
= max
f = 650MHz, V
AGC
= min
f = 650MHz
f = 650MHz, V
AGC
= max
Max gain to min gain
Max gain, Pin = -48dBm
Z0 = 50
/side
Z0 = 50
/side
f = 650MHz, min gain
f = 650MHz, max gain
CONDITIONS
dB
dB
dB
dB
22
AVmax
AVmin
AV
NF
NF
Maximum Gain
Minimum Gain
Gain-Control Range
Noise Figure
Noise-Figure Variation
MHz
800
BW-3dB
Bandwidth (-3dB)
2:1
2:1
Input VSWR
Output VSWR
Supply Current
+10
dBm
-35
IIP3
Input Third-Order Intercept
-18
40
15
18
1
dB/dB
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
mA
20
I
CC
Bandgap-derived 2.5V output
+ IF output
- IF output
Bandgap reference (1.2V) output
Voltage proportional to absolute T output
250μA PTAT reference current for X2114
AGC control voltage input
Ground
Substrate connection (ground)
+ IF input
- IF input
250μA constant reference current for X2118
250μA PTAT reference current for X2118
500μA PTAT reference current for X2111
+5V supply
DESCRIPTION
2R5
OP
OPB
BGR
VPTAT
(I/Q)BIAS
AGCIP
PORT NAME
DESCRIPTION
V
EE
SUB
IP
IPB
K250
P250
MIX(I/Q)
V
CC
PORT NAME
V
CC
= 5.0V ±5%, R
L
= 1k
, C
L
= 2pF
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