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Updated at 17/06/2025 10:30:15(UTC+8)
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Description
- Product Details
- The AD9789 is a flexible QAM encoder/interpolator/upconverter combined with a high performance, 2400 MSPS, 14-bit RF digital-to-analog converter (DAC). The flexible digital interface can accept up to four channels of complex data. The QAM encoder supports constellation sizes of 16, 32, 64, 128, and 256 with SRRC filter coefficients for all standards.
- The on-chip rate converter supports a wide range of baud rates with a fixed DAC clock. The digital upconverter can place the channels from 0 to 0.5 × fDAC. This permits four contiguous channels to be synthesized and placed anywhere from dc to fDAC/2.
- The AD9789 includes a serial peripheral interface (SPI) for device configuration and status register readback. The flexible digital interface can be configured for data bus widths of 4, 8, 16, and 32 bits. It can accept real or complex data.
- The AD9789 operates from 1.5 V, 1.8 V, and 3.3 V supplies for a total power consumption of 1.6 W. It is supplied in a 164-ball chip scale package ball grid array for lower thermal impedance and reduced package parasitics. No special power sequencing is required. The clock receiver powers up muted to prevent start-up noise.
- **Product Highlights**
- 1. Highly integrated and configurable QAM mappers, interpolators, and upconverters for direct synthesis of 1 to 4 DOCSIS or DVB compatible channels in a block.
- 2. Low noise and intermodulation distortion (IMD) performance enable high quality synthesis of signals up to 1 GHz.
- 3. Flexible data interface supports LVDS for outstanding SFDR or CMOS input data for less demanding applications.
- 4. Interface is configurable from 4-bit nibbles to 32-bit words and can run at up to 150 MHz CMOS or 150 MHz LVDS DDR.
- 5. Manufactured on a CMOS process, the AD9789 uses a proprietary switching technique that enhances dynamic performance.
- **Applications**
- Broadband communications systems
- CMTS/DVB
- Cellular infrastructure
- Point-to-point wireless
- ### Features and Benefits
- Power: 1.7 W (IFS = 20 mA; fDAC = 2.4 GHz, LVDS I/F)
- Excellent dynamic performance:
- DOCSIS 3.0 ACLR: 4 QAM carriers
- -75 dBc @ fOUT = 200 MHz
- -71 dBc @ fOUT = 800 MHz (noise)
- -67 dBc @ fOUT = 800 MHz (harmonics)
- Unequalized MER = 42 db
- On-chip and bypassable:
- 4 QAM encoders with SRRC filters, 16X – 512X
- interpolation, rate converters and modulators
- Flexible data interface:
- 4, 8, 16, or 32 bits wide with parity
- Direct to RF synthesis support w/ Fs Mix Mode
- Built-in self-test (BIST) supports
- Input connectivity check
- Internal random data generator
AD9789 Specifications
| Attribute | Attribute Value |
|---|---|
| Datasheet | Datasheet |
| 3D Model | 3D Model |
| Show | |
| Product Lifecycle Status | Active |
Order guide
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- Please confirm with the logistics company in advance for remote areas.
(Additional charges ($35-$50) may apply for delivery in these areas)
- Delivery date: usually 2 to 7 working days.
- A tracking number will be sent after your order ships.
- - Carefully inspected and packed by ManyChip warehouse - Vacuum packaging - Anti-static packaging - Shockproof foam
- The terms here are for reference only, the actual terms are subject to the sales quotation. - Please confirm product specifications when ordering. - MOQ refers to the minimum order quantity required to purchase each part. - If you have special ordering instructions, please indicate them on the ordering page. - Inspection (PSI) will be performed prior to shipment.
- - Income Quality Control (IQC), 1000+ qualified dealers. - Chips are tested by authoritative organizations to ensure the quality, authenticity and safety of your device. - Decapsulation control - X-ray control - XRF inspection - Electrical testing - Surface testing -Digital components warehouse, covering an area of 800 square meters, with constant temperature and humidity
Contact Us
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