DC ELECTRICAL CHARACTERISTICS (CONT’D) Test Conditions:
參數(shù)資料
型號(hào)： XR2211ACP-F
廠商： Exar Corporation
文件頁(yè)數(shù)： 20/24頁(yè)
文件大小： 0K
描述： IC FSK DEMOD/TONE DECOD 14PDIP
標(biāo)準(zhǔn)包裝： 25
功能： FSK 解調(diào)器，音頻解碼器
電源電壓： 4.5 V ~ 20 V
電流 - 電源： 5mA
功率（瓦特）： 900mW
工作溫度： 0°C ~ 70°C
安裝類(lèi)型： 通孔
封裝/外殼： 14-DIP（0.300"，7.62mm）
供應(yīng)商設(shè)備封裝： 14-PDIP
包裝： 管件
包括： 載波檢測(cè)
其它名稱(chēng)： 1016-1309-5
XR-2211A
5
Rev. 1.04
DC ELECTRICAL CHARACTERISTICS (CONT’D)
Test Conditions: VCC = 12V, TA = +25°C, RO = 30KW, CO = 0.033mF, unless otherwise specified.
Parameter
Min.
Typ.
Max.
Unit
Conditions
Voltage Comparator Section
Input Impedance
2
M
W
Measured at Pins 3 and 8
Input Bias Current
100
nA
Voltage Gain
55
70
dB
RL = 5.1KW
Output Voltage Low
300
500
mV
IC = 3mA
Output Leakage Current
0.01
10
mA
VO = 20V
Internal Reference
Voltage Level
4.75
5.3
5.85
V
Measured at Pin 10
Output Impedance
100
W
AC Small Signal
Maximum Source Current
80
mA
Notes
Parameters are guaranteed over the recommended operating conditions, but are not 100% tested in production.
Bold face parameters are covered by production test and guaranteed over operating temperature range.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS
Power Supply
20V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Signal Level
3V rms
. . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation
900mW
. . . . . . . . . . . . . . . . . . . . . . .
Plastic Package
800mW
. . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above TA = 25°C
6mW/
°C
. . . . . . . . .
JEDEC SOIC
390mW
. . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above TA = 25°C
5mW/
°C
. . . . . . . . . .
SYSTEM DESCRIPTION
The main PLL within the XR-2211A is constructed from an
input preamplifier, analog multiplier used as a phase
detector and a precision voltage controlled oscillator
(VCO). The preamplifier is used as a limiter such that
input signals above typically 10mV rms are amplified to a
constant high level signal. The multiplying-type phase
detector acts as a digital exclusive or gate. Its output
(unfiltered) produces sum and difference frequencies of
the input and the VCO output.
The VCO is actually a
current controlled oscillator with its normal input current
(fO) set by a resistor (R0) to ground and its driving current
with a resistor (R1) from the phase detector.
The output of the phase detector produces sum and
difference of the input and the VCO frequencies
(internally connected). When in lock, these frequencies
are fIN+ fVCO (2 times fIN when in lock) and fIN - fVCO (0Hz
when lock). By adding a capacitor to the phase detector
output, the 2 times fIN component is reduced, leaving a
DC voltage that represents the phase difference between
the two frequencies. This closes the loop and allows the
VCO to track the input frequency.
The FSK comparator is used to determine if the VCO is
driven above or below the center frequency (FSK
comparator).
This will produce both active high and
active low outputs to indicate when the main PLL is in lock
(quadrature
phase
detector
and
lock
detector
comparator).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR2211ACP-F 制造商:Exar Corporation 功能描述:IC DEMODULATOR/DECODER FSK 2211
XR2211ACP-F 制造商:Exar Corporation 功能描述:FSK Demodulator/ Tone Decoder IC
XR-2211CN 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:ASK/FSK Demodulator
XR2211CP 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:
XR-2211CP 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:ASK/FSK Demodulator
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