參數(shù)資料
型號(hào)： MAX2370
廠商： Maxim Integrated Products, Inc.
英文描述： Complete 450MHz Quadrature Transmitter
中文描述： 完備的、450MHz正交發(fā)送器
文件頁(yè)數(shù)： 6/19頁(yè)
文件大?。?/td> 387K
代理商： MAX2370
M
Complete 450MHz Quadrature Transmitter
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
RFOUT
Transmitter RF Output. This open-collector output requires a pullup inductor to the supply voltage,
which can be part of the output matching network.
2, 10, 11, 16,
17, 32
–
35,
43, 47
N.C.
No Connection. Leave these pins open-circuit. Some of these pins are internally connected.
3
LOCK
Open-Drain Output Indicating LOCK Status of the IF and/or the RF PLLs. Requires an external
pullup resistor. Control using configuration register bits LD_MODE[1:0].
4
V
CCDRV
Power Supply for the RF Driver Stage. Bypass to PC board ground with a capacitor placed as
close to the pin as possible. Do not share capacitor ground vias with other ground connections.
5
IDLE
Digital Input. Drive to logic-high for normal operation. Logic-low on
IDLE
shuts down everything
except the RF PLL. A small RC lowpass filter can be used to filter digital noise.
6
V
CC
Power Supply for the Upconverter Stage. Bypass to PC board ground with a capacitor placed as
close to the pin as possible. Do not share capacitor ground vias with other ground connections.
7
TXGATE
D g al Inp ut. D ve to logic-high for nor m al op er ati on. Logic-low on
TXG ATE
shuts d ow n ever ythi ng
excep the RF P LL, IF P LL, IF V C O. A sm al RC l ow p ass can b e used to fi er d g al noi se.
8, 9
IFIN+, IFIN-
Differential IF Inputs to the RF Upconverter. IFIN+ and IFIN- are internally biased to typically V
CC
-
1.5V. The input impedance for this port is nominally 400
differential. AC-couple the output of the
differential IF filter to this port. Keep the differential lines as short as possible to minimize the
effects of stray pickup.
12
RBIAS
Bias Resistor Connection. Internally biased to typically 1.18V. An external resistor must be
connected from RBIAS to ground to set the bias current for the upconverters and PA driver
stages. The nominal resistor value is 10k
. This value can be altered to optimize the linearity of
the driver stage.
Typical Operating Characteristics (continued)
(MAX2370 EV kit, V
CC_
=
SHDN
=
IDLE
=
TXGATE
=
CS
= 3.0V, f
REF
= 19.2MHz, LO input power = -15dBm, f
LO
= 575MHz, f
RFOUT
=
455MHz, f
IF
= 120MHz, R
BIAS
= 10k
, V
GC
= 2.5V, registers set according to Table 1, input voltage at I and Q = 130mV
RMS
differential,
T
A
= +25
°
C, unless otherwise noted.)
-90
-70
-80
-50
-60
-30
-40
-20
0
-10
10
FREQUENCY
RF OUTPUT SPECTRUM
M
P
P
OUT
= +8dBm
CENTER: 455MHz, SPAN: 5MHz, RBW: 30kHz
-100
-80
-90
-60
-70
-50
-40
-20
-30
-10
239.8
239.9
240.0
FREQUENCY
(MHz)
240.1
240.2
240.3
IF LOCAL OSCILLATOR SPECTRUM
M
I
P
REF
= -10dBm
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX2370ETM 功能描述:射頻發(fā)射器 Complete 450MHz Quadrature Txr RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel
MAX2370ETM+ 功能描述:射頻發(fā)射器 Complete 450MHz Quadrature Txr RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel
MAX2370ETM+T 功能描述:射頻發(fā)射器 Complete 450MHz Quadrature Txr RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel
MAX2370ETM-T 功能描述:射頻發(fā)射器 Complete 450MHz Quadrature Txr RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel
MAX2370EVKIT 功能描述:射頻開(kāi)發(fā)工具 MAX2370 Eval Kit RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評(píng)估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V
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