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LT5568-2EUF#PBF
GSM/EDGE Optimized, High Linearity Direct Quadrature Modulator
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Manufacturer:
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Mfr.Part #:
LT5568-2EUF#PBF
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Datasheet:
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packingQty:
Tube,91
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packingOption:
Tube
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tempRange:
-40 to 85C
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Operating Supply Current:
110 mA
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EDA/CAD Models:
Availability: 5481 PCS
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LT5568-2EUF#PBF General Description
The LT5568-2 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals. It supports GSM, EDGE, CDMA, CDMA2000 and other systems that operate in the 850MHz to 965MHz band. It may be configured as an image reject upconverting mixer, by applying 90° phase-shifted signals to the I and Q inputs. The I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balanced mixers. The outputs of these mixers are summed and applied to an on-chip RF transformer, which converts the differential mixer signals to a 50Ω single-ended output. The four balanced I and Q baseband input ports are intended for DC coupling from a source with a common mode voltage level of about 0.5V. The LO path consists of an LO buffer with single-ended input, and precision quadrature generators that produce the LO drive for the mixers. The supply voltage range is 4.5V to 5.25V.
Key Features
- Optimized Image Rejection for 850MHz to 965MHz
- High OIP3: +22.9dBm at 900MHz
- Low Output Noise Floor at 5MHz Offset:
- No RF: –159.4dBm/Hz
- POUT = 4dBm: –153dBm/Hz
- Integrated LO Buffer and LO Quadrature Phase Generator
- 50Ω AC-Coupled Single-Ended LO and RF Ports
- 50Ω DC Interface to Baseband Inputs
- Low Carrier Leakage: –43dBm at 900MHz
- High Image Rejection: –52dBc at 900MHz
- 16-Lead 4mm × 4mm QFN Package
Application
- Infrastructure Tx for GSM/Cellular Bands
- Image Reject Up-Converters for Cellular Bands
- Low-Noise Variable Phase-Shifter for 700MHz to 1050MHz Local Oscillator Signals
- RFID Reader
Specifications
model | LT5568-2EUF#PBF | packingQty | Tube,91 |
packingOption | Tube | lifeCycle | production |
tempRange | -40 to 85C | Product Category | Modulator / Demodulator |
Operating Supply Current | 110 mA | Technology | Si |
Mounting Style | SMD/SMT | Product Type | Modulator / Demodulator |
Series | LT5568-2 | Factory Pack Quantity | 91 |
Subcategory | Wireless & RF Integrated Circuits |
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LT5568-2EUF#PBF Datasheet PDF
LT5568-2EUF#PBF PDF Preview
Availability: 5481 PCS
+BOMQty. | Unit Price | Ext. Price |
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1+ | - | - |
The prices below are for reference only.
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