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参数资料
| 型号： | MICRF001BN |
| 厂商： | Micrel Inc |
| 文件页数： | 7/8页 |
| 文件大小： | 0K |
| 描述： | IC RCVR/DATA DEMOD RF/IF 14DIP |
| 标准包装： | 25 |
| 频率： | 300MHz ~ 440MHz |
| 灵敏度： | -95dBm |
| 数据传输率 - 最大： | 4.8 kbps |
| 调制或协议： | OOK |
| 应用： | 车库门，RKE |
| 电流 - 接收： | 6.3mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 特点： | 自动调谐 |
| 电源电压： | 4.75 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 14-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 14-DIP |
| 包装： | 管件 |
MICRF001
QwikRadio tm
Micrel
3. CAGC Pin
Figure 3 illustrates the CAGC pin interface circuit. The AGC
control voltage is developed as an integrated current into a
capacitor CAGC. The attack current is nominally 15 μ A,
while the decay current is a 1/10th scaling of this,
approximately 1.5 μ A. Signal gain of the RF/IF strip inside
the IC diminishes as the voltage on CAGC decreases. By
simply adding a capacitor to CAGC pin, the attack/decay
time constant ratio is fixed at 1:10. Further discussion on
setting the attack time constant is found in “Application Note
22, MICRF001 Theory of Operation”, section 6.5.
Modification of the attack/decay ratio is possible by adding
resistance from CAGC pin either to VDDBB or VSSBB, as
desired.
4. DO Pin
The output stage for the Data Comparator (DO pin) is shown
in Figure 4. The output is a 10μA push-10μA pull, switched
current stage. Such an output stage is capable of driving
CMOS-type loads.
Figure 2 CTH Pin
5. REFOSC Pin
The REFOSC input circuit is shown in Figure 5. Input
impedance is quite high (200k ? ). This is a Colpitts oscillator,
with internal 30pF capacitors. This input is intended to work
with standard ceramic resonators, connected from this pin to
VSSBB. The resonators should not contain integral
capacitors, since these capacitors are contained inside the
IC. Externally applied signals should be AC-coupled,
amplitude limited to approximately 0.5Vpp. The nominal DC
bias voltage on this pin is 1.4V.
6. Control Inputs (SEL0, SEL1, SWEN)
Control input circuitry is shown in Figure 6. The standard
input is a logic inverter constructed with minimum geometry
MOSFETs (Q2, Q3). P-channel MOSFET Q1 is a large
channel length device which functions essentially as a
“weak” pullup to VDDBB. Typical pullup current is 5 μ A,
leading to an impedance to the VDDBB supply of typically
1M ? .
Figure 3 CAGC Pin
Figure 4 DO Pin
June 1998
Figure 5 REFOSC Pin
7
Figure 6 SEL0, SEL1, SWEN
MICRF001
相关PDF资料 |
PDF描述 |
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| MICRF001BM TR | IC RCVR/DATA DEMOD RF/IF 14SOIC |
| AMB345906 | SENSOR REFL LONG V TYPE W/OSC |
| AMB345905 | SENSOR REFL LONG V TYPE W/OSC |
| AMB340912 | SENSOR REFL LONG H TYPE W/OSC |
| AMB340910 | SENSOR REFL LONG H TYPE W/OSC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MICRF001YM | 功能描述:射频接收器 300-440MHz RF Receiver( Lead Free) RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MICRF001YM TR | 功能描述:射频接收器 300-440MHz RF Receiver( Lead Free) RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MICRF001YM-TR | 功能描述:- RF Receiver OOK 300MHz ~ 440MHz -95dBm 4.8 kbps PCB, Surface Mount 14-SOIC 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:过期 频率:300MHz ~ 440MHz 灵敏度:-95dBm 数据速率（最大值）:4.8 kbps 调制或协议:OOK 应用:车库门，RKE 电流 - 接收:6.3mA 数据接口:PCB，表面贴装 存储容量:- 天线连接器:PCB，表面贴装 特性:自动调谐 电压 - 电源:4.75 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商器件封装:14-SOIC 标准包装:1 |
| MICRF001YN | 功能描述:射频接收器 300-440MHz RF Receiver ( Lead Free) RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MICRF002 | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:300-440MHz QwikRadio? ASK Receiver |
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