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HFA3783IN96 PDF даташит

Спецификация HFA3783IN96 изготовлена ​​​​«Intersil Corporation» и имеет функцию, называемую «I/Q Modulator/Demodulator and Synthesizer».

Детали детали

Номер произв HFA3783IN96
Описание I/Q Modulator/Demodulator and Synthesizer
Производители Intersil Corporation
логотип Intersil Corporation логотип 

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HFA3783IN96 Даташит, Описание, Даташиты
TM
Data Sheet
HFA3783
March 2000 File Number 4633.2
I/Q Modulator/Demodulator and
Synthesizer
The HFA3783 is a highly integrated and
fully differential SiGe baseband
converter for half duplex wireless
applications. It features all the
necessary blocks for quadrature
modulation and demodulation of “I” and “Q” baseband
signals.
It has an integrated AGC receive IF amplifier with frequency
response to 600MHz. The AGC has 70dB of voltage gain
and better than 70dB of gain control range. The transmit
output also features gain control with 70dB of range.
The receive and transmit IF paths can share a common
differential matching network to reduce the filter component
count required for single IF half duplex transceivers. A pair of
2nd order antialiasing filters with an integrated DC offset
cancellation architecture is included in the receive chain for
baseband operation down to DC. In addition, an IF level
detector is included in the AGC chain for threshold
comparison. Up and down conversion are performed by
doubly balanced mixers for “I” and “Q” IF processing. These
converters are driven by a broadband quadrature LO
generator with frequency of operation phase locked by an
internal 3 wire interface synthesizer and PLL.
The device operates at low LO levels from an external VCO
with a PLL reference signal up to 50MHz. The HFA3783 is
housed in a thin 48 lead LQFP package well suited for
PCMCIA board applications.
Simplified Block Diagram
Features
• Integrates All IF Transmit and Receive Functions
• Broad Quadrature Frequency Range . . . . . .70 to 600MHz
• 600MHz AGC IF Strip with Level Detector . . . . . . . . .69dB
• DC Coupled Baseband Interfaces
• Integrates a Receiver DC Offset Calibration Loop
• Integrated 3 Wire Interface PLL For LO Applications
• Low LO Drive Level . . . . . . . . . . . . . . . . . . . . . . . -15dBm
• Fast Transmit-Receive Switching . . . . . . . . . . . . . . . . <1µs
• Power Management/Standby Mode
• Single Supply 2.7 to 3.3V Operation
Applications
• IEEE802.11 1 and 2Mbps Standard
• Systems Targeting IEEE 802.11 11Mbps Standard
• Wireless Local Area Networks
• PCMCIA Wireless Transceivers
• ISM Systems
• TDMA Packet Protocol Radios
Ordering Information
PART
NUMBER
HFA3783IN
HFA3783IN96
TEMP. RANGE
(oC)
PACKAGE PKG. NO.
-40 to 85
48 Ld LQFP Q48.7x7A
-40 to 85 Tape and Reel
IF_IN
IF_OUT
IF DETECTOR OUT
RECEIVE AGC
I BASEBAND RXI
OFFSET
CAL
CAL ENABLE
Q BASEBAND RXQ
0o/90oPLL MODULE
IF 2X LO / VCO IN
CHARGE PUMP OUT
3 WIRE INTERFACE
REF IN
BASEBAND TX I
BASEBAND TXQ
TRANSMIT IF AGC
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil and Design is a trademark of Intersil Corporation. | Copyright © Intersil Corporation 2000
PRISM is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.









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HFA3783IN96 Даташит, Описание, Даташиты
Pinout
HFA3783
RX_VCC
GND
IF_RX+
IR_RX-
GND
TX_VAGC
TX_VCC
IF_TX+
IF_TX-
TX_VCC
GND
GND
48 47 46 45 44 43 42 41 40 39 38 37
1 36
2 35
3 34
4 33
5 32
6 31
7 30
8 29
9 28
10 27
11 26
12 25
13 14 15 16 17 18 19 20 21 22 23 24
RXQ+
RXQ-
TXI+
TXI-
1.2V_OUT
TXQ+
TXQ-
GND
LO_VCC
LO_IN+
LO_IN-
GND
Pin Descriptions
PIN NUMBER
NAME
1 RX_VCC
3 IF_RX+
4 IF_RX-
6 TX_VAGC
7 TX_VCC
8 IF_TX+
9 IF_TX-
10 TX_VCC
13 REF_BYP
14 REF_IN
17 SYN_VDD
18 CLK
19 DATA
20 LE
DESCRIPTION
Receive AGC Amplifier Power Supply. Requires high quality capacitor decoupling.
Receive AGC Differential Amplifier Non-Inverting IF Input. Requires a DC blocking capacitor.
Receive AGC Differential Amplifier Inverting IF Input. Requires a DC blocking capacitor. Pins 3 and 4 are
interchangeable and can be used single ended with the other being capacitively bypassed to ground.
Transmit AGC amplifier DC gain control input.
Transmit AGC Amplifier Power Supply. Requires high quality capacitor decoupling.
Transmit AGC Differential Amplifier Positive Output. Open collector requiring DC bias from VCC through
an inductor.
Transmit AGC Differential Amplifier Negative Output. Open collector requiring DC bias from VCC through
an inductor.
Transmit AGC Amplifier Power Supply. Requires high quality capacitor decoupling.
PLL Reference Buffer Signal Negative Differential Input. Pin has active bias and can be used in
conjunction with pin 14 either differential or single ended. CMOS inputs must be DC coupled. Small
sinusoidal inputs must be DC blocked with this pin bypassed to ground via a capacitor.
PLL Reference Buffer Signal Positive Differential Input. Pin has active bias and can be used in conjunction
with pin 13 either differential or single ended. CMOS inputs must be DC coupled. Small sinusoidal inputs
must be DC blocked with this pin used as an input for the reference signal. When used with single ended
CMOS inputs, pin 13 must be left floating. Pins 13 and 14 are interchangeable.
PLL Synthesizer Digital Power Supply. Requires high quality capacitor decoupling.
PLL Synthesizer Serial Interface Clock. CMOS input.
PLL Synthesizer Serial Interface Data. CMOS input.
PLL Synthesizer Serial Interface Latch Enable Control. CMOS input.
2









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HFA3783IN96 Даташит, Описание, Даташиты
HFA3783
Pin Descriptions (Continued)
PIN NUMBER
NAME
DESCRIPTION
21
CP_VDD
PLL Charge Pump Power Supply. Independent supply for the charge pump, not to exceed 3.6V. Requires
high quality capacitor decoupling.
22
CP_D0
PLL Charge Pump Current Output.
24 LD PLL Lock Detect Output. Requires low capacitive loading not to exceed 5pF.
26
LO_IN-
Local Oscillator Differential Buffer Negative Input. Requires AC coupling. For single ended applications
its complementary input, Pin 27, must be bypassed to ground via a capacitor.
27
LO_IN+
Local Oscillator Differential Buffer Positive Input. Requires AC coupling. For single ended applications its
complementary input, Pin 26, must be bypassed to ground via a capacitor. Pins 26 and 27 are
interchangeable.
NOTE: High second harmonic content LO waveforms may degrade I/Q phase accuracy.
28
LO_VCC
Local Oscillator Buffer Amplifier Power Supply. Requires high quality capacitor decoupling.
30
TXQ-
Baseband Quadrature Differential Inputs for IF Transmission. DC coupled requiring 1.3V common mode
bias voltages.
31 TXQ+
32
1.2V_OUT
Highly Regulated Band Gap 1.2V Buffered Output. Used in conjunction with ADCs and DACs for voltage
/temperature tracking. Requires high quality 0.1µF capacitor decoupling to ground.
33 TXI- Baseband In Phase Differential Inputs for IF Transmission. DC coupled requiring 1.3V common mode
bias voltages.
34 TXI+
35
RXQ-
Baseband Quadrature Differential Outputs From IF Demodulation. DC coupled output with 1.2V common
mode DC outputs. AC coupling pins 35, 36, 37 and 38 requires programmable register activation for DC
36
RXQ+
hold during TX to RX switching.
37
RXI-
Baseband In Phase Differential Outputs From IF Demodulation. DC coupled output with 1.2V common
mode DC outputs.
38 RXI+
40
BB_VCC
Baseband Receive LPF Output and Offset Control Power Supply. Requires high quality capacitor
decoupling.
42
CAL_EN
CMOS Input for Activation Of Internal DC Offset Adjust Circuit for the Receive Baseband Outputs. A rising
edge activates the calibration cycle, which completes within a programmable time and holds the
calibration while this pin is held high. In applications where the synthesizer is not used, this pin needs to
be grounded.
43 PE2 Power Enable Control Pins: Please refer to the POWER ENABLE TRUTH TABLE in the Electrical
Specifications section.
44 PE1
45
IF_DET
IF Detector Current Output. A current source of 175µA typical is generated at this pin when the IF AGC
receive differential or single ended signal at pins 3 and 4 is between 100 and 200mVPP.
47
RX_VAGC
Receive AGC amplifier DC gain control input.
2, 5, 11, 12, 15,
16, 23, 25, 29,
39, 41, 46, 48
GND
Grounds. Connect to a solid ground plane.
3










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Номер в каталогеОписаниеПроизводители
HFA3783IN96I/Q Modulator/Demodulator and SynthesizerIntersil Corporation
Intersil Corporation

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