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參數(shù)資料
| 型號： | HFA3761IN |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 400MHz AGC and Quadrature IF Demodulator |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQFP80 |
| 文件頁數(shù)： | 5/9頁 |
| 文件大?。?/td> | 68K |
| 代理商： | HFA3761IN |
4-5
35
DEMOD_RXQ+
Quadrature demodulator positive output. AC coupling is required. Normally connects to the non inverting input of
the Low pass filter (LPF_RXQ+), pin 28.
36
DEMOD_RXQ-
Quadrature demodulator negative output. AC coupling is required. Normally connects to the inverting input of the
Low pass filter (LPF_RXQ+), pin 27.
37
NC
Connected internally for test purposes. Pin must be left floating.
38
NC
Connected internally for test purposes. Pin must be left floating.
39
NC
Connected internally for test purposes. Pin must be left floating.
40
NC
Connected internally for test purposes. Pin must be left floating.
41
GND
Ground. Connect to a solid ground plane.
42
DEMOD_V
CC
Supply pin for the Demodulator. Use high quality decoupling capacitors right at the pin.
43
DEM_RX_PE
Digital input control to enable the demodulator section. Enable logic level is High.
44
DEM_LO_In
(2XLO)
Single ended local oscillator current input. Frequency of input signal must be twice the required demodulator LO
frequency. Input current is optimum at 200
μ
A
RMS
. Input matching networks and filters can be designed for a wide
range of power and impedances at this port. Typical input impedance is 130
.
This pin requires AC coupling.
NOTE: High second harmonic content input waveforms may degrade I/Q phase accuracy.
45
DEMOD_V
CC
Supply pin for the Demodulator. Use high quality decoupling capacitors right at the pin.
46
DEM_LO_Out
Divide by 2 buffered output reference from “DEMOD_LO_in” input. Used for external applications where the
demodulating carrier reference frequency is required. 50
single end driving capability. This output can be
disabled by use of pin 50. AC coupling is required.
47
DEMOD_V
CC
Supply pin for the Demodulator. Use high quality decoupling capacitors right at the pin.
48
DEMOD_IFIN+
Demodulator, non-inverting input. Requires AC coupling.
49
DEMOD_IFIN-
Demodulator, inverting input. Requires AC coupling.
50
LO_GND
When grounded, this pin enables the LO buffer (DEMOD_LO_Out). When open (NC) it disables the LO buffer.
51, 52, 53
GND
Ground. Connect to a solid ground plane.
54
AGC2_V
CC
Supply pin for the AGC amplifier 2. Use high quality decoupling capacitors right at the pin.
55
AGC2_Out-
Positive output of AGC amplifier 2. Requires AC coupling.
56
AGC2_Out+
Negative output of AGC amplifier 2. Requires AC coupling.
57
AGC2_PE
Digital input control to enable the AGC amplifier 2. Enable logic level is High.
58
AGC2_V
CC
Supply pin for the AGC amplifier 2. Use high quality decoupling capacitors right at the pin.
59
GND
Ground. Connect to a solid ground plane.
60
AGC2_V
AGC
AGC amplifier 2, AGC control input.
61
AGC2_BYP+
DC feedback pin for AGC amplifier 2. Requires good decoupling and minimum wire length to a solid signal ground.
62
AGC2_In+
Non-inverting analog input of AGC amplifier 2.
63
GND
Ground. Connect to a solid ground plane.
64
AGC2_In-
Inverting input of AGC amplifier 2.
65
AGC2_BYP-
DC feedback pin for AGC amplifier 2. Requires good decoupling and minimum wire length to a solid signal ground.
66 - 73
GND
Ground. Connect to a solid ground plane.
74
AGC1_V
CC
AGC amplifier 1 supply pin. Use high quality decoupling capacitors right at the pin.
75
AGC1_Out-
Negative output of AGC amplifier 1. Requires AC coupling.
76
AGC1_Out+
Positive output of AGC amplifier 1. Requires AC coupling.
77
AGC1_PE
Digital input control to enable the AGC amplifier 1. Enable logic level is High.
78
AGC1_V
CC
AGC amplifier 1 supply pin. Use high quality decoupling capacitors right at the pin.
79
GND
Ground. Connect to a solid ground plane.
80
AGC1_V
AGC
AGC amplifier 1, AGC control input.
Pin Descriptions
(Continued)
PIN
SYMBOL
DESCRIPTION
HFA3761
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| HFA3763 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:400MHz Quadrature Modulator and AGC |
| HFA3763IN | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:400MHz Quadrature Modulator and AGC |
| HFA3763IN WAF | 制造商:Harris Corporation 功能描述: |
| HFA3765 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:AGC and Quadrature IF Demodulator |
| HFA3765IA | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:AGC and Quadrature IF Demodulator |
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