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參數(shù)資料
| 型號： | MAX2031ETP |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Linearity, 815MHz to 1000MHz Upconversion/ Downconversion Mixer with LO Buffer/Switch |
| 中文描述： | 高線性度，815MHz至1000MHz上變頻/下變頻混頻器，LO緩沖器/開關(guān) |
| 文件頁數(shù)： | 12/16頁 |
| 文件大?。?/td> | 651K |
| 代理商： | MAX2031ETP |
M
Detailed Description
The MAX2031 can operate either as a downconverter or
an upconverter mixer that provides approximately 7dB of
conversion loss with a typical 7dB noise figure. IIP3 is
+36dBm for both upconversion and downconversion
modes. The integrated baluns and matching circuitry
allow for 50
single-ended interfaces to the RF port and
the two LO ports. The RF port can be used as an input
for downconversion or an output for upconversion. A sin-
gle-pole, double-throw (SPDT) switch provides 50ns
switching time between the two LO inputs with 49dB of
LO-to-LO isolation. Furthermore, the integrated LO buffer
provides a high drive level to the mixer core, reducing
the LO drive required at the MAX2031
’
s inputs to a
-3dBm to +3dBm range. The IF port incorporates a dif-
ferential output for downconversion, which is ideal for
providing enhanced IIP2 performance. For upconver-
sion, the IF port is a differential input.
Specifications are guaranteed over broad frequency
ranges to allow for use in cellular band WCDMA,
cdmaOne
, cdma2000, and GSM 850/GSM 900 2.5G
EDGE base stations. The MAX2031 is specified to oper-
ate over an 815MHz to 1000MHz RF frequency range, a
960MHz to 1180MHz LO frequency range, and a DC to
250MHz IF frequency range. Operation beyond these
ranges is possible; see the
Typical Operating
Characteristics
for additional details.
The MAX2031 is optimized for high-side LO injection
architectures. However, the device can operate in low-
side LO injection applications with an extended LO
range, but performance degrades as f
LO
decreases. See
the
Typical Operating Characteristics
for measurements
taken with f
LO
below 960MHz. For a pin-compatible
device that has been optimized for LO frequencies below
960MHz, contact the factory.
RF Port and Balun
For using the MAX2031 as a downconverter, the RF
input is internally matched to 50
, requiring no external
matching components. A DC-blocking capacitor is
required because the input is internally DC shorted to
ground through the on-chip balun. For upconverter
operation, the RF port is a single-ended output similarly
matched to 50
.
LO Inputs, Buffer, and Balun
The MAX2031 is optimized for high-side LO injection
architectures with a 960MHz to 1180MHz LO frequency
range. For a device with a 325MHz to 850MHz LO fre-
quency range, contact the factory. As an added fea-
ture, the MAX2031 includes an internal LO SPDT switch
that can be used for frequency-hopping applications.
The switch selects one of the two single-ended LO
ports, allowing the external oscillator to settle on a par-
ticular frequency before it is switched in. LO switching
time is typically less than 50ns, which is more than ade-
quate for nearly all GSM applications. If frequency hop-
ping is not employed, set the switch to either of the LO
inputs. The switch is controlled by a digital input
(LOSEL): logic-high selects LO2, logic-low selects LO1.
To avoid damage to the part, voltage MUST be applied
to V
CC
before digital logic is applied to LOSEL (see the
Absolute Maximum Ratings
). LO1 and LO2 inputs are
internally matched to 50
, requiring an 82pF DC-block-
ing capacitor at each input.
High-Linearity, 815MHz to 1000MHz Upconversion/
Downconversion Mixer with LO Buffer/Switch
12
______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1, 6, 8, 14
V
CC
Power-Supply Connection. Bypass each V
CC
pin to GND with capacitors as shown in the
Typical
Application Circuit
.
S ng e- E nd ed 50
RF Inp ut/O utp ut. Thi s p or i s i nter nal y m atched and D C shor ed to G N D thr oug h a b al un.
Center Tap of the Internal RF Balun. Connect to ground.
2
3
RF
TAP
4, 5, 10, 12,
13, 16, 17, 20
7
9
11
15
18, 19
EP
GND
Ground
LOBIAS Bias Resistor for Internal LO Buffer. Connect a 523
±1% resistor from LOBIAS to the power supply.
LOSEL
Local Oscillator Select. Logic-control input for selecting LO1 or LO2.
LO1
Local Oscillator Input 1. Drive LOSEL low to select LO1.
LO2
Local Oscillator Input 2. Drive LOSEL high to select LO2.
IF-, IF+
Differential IF Input/Outputs
GND
Exposed Ground Paddle. Solder the exposed paddle to the ground plane using multiple vias.
cdmaOne is a trademark of CDMA Development Group.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2031ETP+ | 功能描述:射頻混合器 .815GHz-1GHz Up/Down Mixer RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| MAX2031ETP+T | 功能描述:射頻混合器 .815GHz-1GHz Up/Down Mixer RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| MAX2031EVKIT | 功能描述:射頻混合器 RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| MAX2032 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Linearity, 650MHz to 1000MHz Upconversion/Downconversion Mixer with LO Buffer/Switch |
| MAX2032ETP+ | 功能描述:射頻混合器 .65GHz-1GHz Up/Down Mixer RoHS:否 制造商:NXP Semiconductors 頻率范圍: 轉(zhuǎn)換損失——最大: 工作電源電壓:6 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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