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參數(shù)資料
| 型號： | MICRF011BM |
| 廠商： | MICREL INC |
| 元件分類： | 消費家電 |
| 英文描述： | QwikRadiotm Receiver/Data Demodulator Preliminary Information |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封裝： | SOIC-14 |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 147K |
| 代理商： | MICRF011BM |
QwikRadio
tm
4
December 1998b
MICRF011
MICRF011
Micrel
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDDRF, VDDBB).................................+7V
Voltage on any I/O Pin.........................VSS-0.3 to VDD+0.3
Junction Temperature..............................................+150
°
C
Storage Temperature Range.....................-65
°
C to + 150
°
C
Lead Temperature (soldering, 10 seconds).............+ 260
°
C
Operating Ratings
Supply Voltage (VDDRF, VDDBB)..................4.75V to 5.5V
Ambient Operating Temperature (TA)..........-40
°
C to +85
°
C
Package Thermal Resistance
θ
JA (14 Pin DIP)........90
°
C/W
Package Thermal Resistance
θ
JA (14 Pin SOIC)...120
°
C/W
This device is ESD sensitive: Meets Class 1ESD test
requirements (Human body Model, HBM), in
accordance with MIL-STD-883C, Method 3015. Do
not operate or store near strong electrostatic fields.
Use appropriate ESD precautions.
Electrical Characteristics
Unless otherwise stated, these specifications apply for Ta=-40
°
C to 85
°
C, 4.75<VDD<5.5V. All voltages are with respect to
Ground; Positive currents flow into device pins. CAGC = 4.7μF, CTH = .047μF, VDDRF= VDDBB = VDD. REFOSC
frequency =4.90MHz.
Note: Items in bold represent changes from the MICRF001 specification.
Parameter
Power Supply
Operating Current
RF/IF Section
Receiver Sensitivity
IF Center Frequency
IF 3dB Bandwidth
RF Input Range
Receive Modulation Duty-Cycle
Maximum Receiver Input
Spurious Reverse Isolation
AGC Attack / Decay ratio
Local Oscillator Stabilization Time
Demod Section
CTH Source Impedance
CTH Source Impedance Variation
Demod Filter Bandwidth
Demod Filter Bandwidth
Test Conditions
MIN
TYP
MAX
UNITS
2.4
mA
Note 1, 3
Note 4
Note 3, 4
-103
0.86
0.43
dBm
MHz
MHz
MHz
%
dBm
μ
Vrms
300
20
440
80
Rsc = 50
ANT pin, Rsc = 50
Note 2
T(Attack) / T(Decay)
To 1% of Final Value
-20
30
0.1
2.5
msec
Note 5
118k
%
Hz
Hz
-15
+15
SEL0 = SEL1 = SWEN = VDD, Note 4, 6
SEL0 = SEL1 = VDD, SWEN = VSS
Note 4, 6
4160
8320
Digital Section
REFOSC Input Impedance
Input Pullup Current
Input High Voltage
Input Low Voltage
Output Current
Output High Voltage
Output Low Voltage
Output Tr, Tf
200k
8
μA
V
V
μA
V
V
μsec
SEL0, SEL1, SWEN = VSS
SEL0, SEL1, SWEN
SEL0, SEL1, SWEN
DO pin, Push-Pull
DO pin, Iout = -1μA
DO pin, Iout = +1μA
DO pin, Cload= 15pF
0.8VDD
0.2VDD
10
0.9VDD
0.1VDD
10
Note 1:
Sensitivity is defined as the average signal level measured at the input necessary to achieve 10e-2 Bit Error Rate (BER). The
input signal is defined as a return-to-zero (RZ) waveform with 50% average duty cycle (e.g., Manchester Encoded Data) at a
data rate of 300bps. The RF input is assumed to be matched into 50
.
Note 2:
Spurious reverse isolation represents the spurious components which appear on the RF input (ANT) pin measured into 50
with an input RF matching network.
Note 3:
Sensitivity, a commonly specified Receiver parameter, provides an indication of the Receiver’s input referred noise, generally
input thermal noise. However, it is possible for a more sensitive receiver to exhibit range performance no better than that of a
less sensitive receiver, if the “ether” noise is appreciably higher than the thermal noise. “Ether” noise refers to other interfering
“noise” sources, such as FM radio stations, pagers, etc.
A better indicator of receiver range performance is usually given by its Selectivity, often stated as Intermediate Frequency (IF)
or Radio Frequency (RF) bandwidth, depending on receiver topology. Selectivity is a measure of the rejection by the receiver
of “ether” noise. More selective receivers will almost invariably provide better range. Only when the receiver selectivity is so
high that most of the noise on the receiver input is actually thermal will the receiver demonstrate sensitivity-limited
performance.
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