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參數(shù)資料
| 型號： | MAX2510 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Voltage IF Transceiver with Limiter/RSSI and Quadrature Modulator |
| 中文描述： | 低電壓IF收發(fā)器，帶有限幅放大器接收信號強度指示及正交調(diào)制器 |
| 文件頁數(shù)： | 8/12頁 |
| 文件大?。?/td> | 126K |
| 代理商： | MAX2510 |
M
Low-Voltage IF Transc eiver with
Limiter/RS S I and Quadrature Modulator
8
_______________________________________________________________________________________
Pin Desc ription
PIN
Offset-Correction Capacitor Pins. Connect a 0.01μF capacitor between CZ and
CZ
.
CZ,
CZ
2, 3
Limiter Input. Connect a 330
(typical) resistor to VREF for DC bias, as shown in the Typical Operating
Circuit.
LIMIN
1
FUNCTION
NAME
Gain-Control Pin. Applying a DC voltage to GC between 0V and 2.0V adjusts the transmitter gain by
more than 40dB. GC is internally terminated to 1.35V via an 85k
resistor.
GC
5
Received Signal-Strength Indicator Output. The voltage on RSSI is proportional to the signal power at
LIMIN. The RSSI output sources current pulses into a 330pF (typical) external capacitor. This output is
internally terminated with 11k
, and this RC time constant sets the decay time.
RSSI
4
Local-Oscillator Input Ground. Connect to PC board ground plane with minimal inductance.
GND
7
Differential LO Inputs. In a typical application, externally terminate LO with 50
to ground, then AC cou-
ple into LO. AC terminate
LO
directly to ground for single-ended operation, as shown in the Typical
Operating Circuit.
LO,
LO
6, 9
Baseband In-Phase Inputs. The differential voltage across these inputs forms the quadrature modulator’s
I-channel input. The signal input level is typically up to 500mVp-p centered around a 1.4V (typical) DC
bias level on
I
.
I,
I
15, 16
Differential Outputs of the Limiting Amplifier. These outputs are complementary emitter followers capable
of driving 250
single-ended loads to ±300mV.
LIMOUT,
LIMOUT
13, 14
Baseband Quadrature-Phase Inputs. The differential voltage across these inputs forms the quadrature
modulator’s Q-channel input. The signal input level is typically up to 500mVp-p, centered around a 1.4V
(typical) DC bias level on
Q
.
Q
, Q
17, 18
Receiver Enable Pin. When high, RXEN enables the receiver if TXEN is low. If both RXEN and TXEN are
high, the part is in standby mode; if both are low, the part is in shutdown. See the Power Management
section for details.
RXEN
12
Transmitter-Enable Pin. When high, TXEN enables the transmitter if RXEN is low. If both TXEN and
RXEN are high, the part is in standby mode; if both are low, the part is in shutdown. See the Power
Managementsection for details.
TXEN
11
Differential Outputs of the Upconverter. In a typical application, these open-collector outputs are pulled
up to V
CC
with two external inductors and AC coupled to the load. See the Applications Informationsec-
tion for more details, including information on impedance matching these outputs to a load.
TXOUT
,
TXOUT
23, 24
Differential Inputs of the Downconverter Mixer. An impedance-matching network may be required in
some applications. See the Applications Informationsection for details.
RXIN
,
RXIN
22, 25
Reference Voltage Pin. VREF provides an external bias voltage for the MIXOUT and LIMIN pins. Bypass
this pin with a 0.1μF capacitor to ground. The VREF voltage is equal to V
CC
/ 2. See the Typical
Operating Circuitfor more information.
VREF
28
Receiver Mixer Ground. Connect to PC board ground plane with minimal inductance.
GND
26
General-Purpose V
CC
Pins. Bypass with a 0.047μF low-inductance capacitor to GND.
Receiver/Transmitter Ground. Connect to PC board ground plane with minimal inductance.
V
CC
GND
19, 21
Local-Oscillator Input V
CC
Pin. Bypass directly to local-oscillator input ground (pin 8).
Limiter Ground. Connect to PC board ground plane with minimal inductance.
V
CC
GND
8
10
20
Single-Ended Output of the Downconverter Mixer. This pin is high-impedance and must be biased to the
VREF pin through an external terminating resistor whose value depends on the interstage filter character-
istics. See the Applications Informationsection for details.
MIXOUT
27
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| MAX2510EEI | 功能描述:射頻收發(fā)器 RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
| MAX2510EEI+ | 功能描述:射頻收發(fā)器 IF Txr w/Limitr RSSI Quadrature Mod RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray |
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