Overview
The AD6654CBC is a high-performance, mixed-signal IF-to-baseband receiver produced by Analog Devices Inc. This component integrates a 14-bit, 92.16 MSPS analog-to-digital converter (ADC) and a 4-/6-channel, multimode digital down-converter (DDC). It is designed to meet the demanding filtering requirements of wideband standards such as CDMA2000, UMTS, TD-SCDMA, and WiMAX. The AD6654CBC is typically used in radio systems for digitally demodulating and filtering IF sampled signals.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 14 |
| Sampling Rate | 92.16 MSPS |
| Channels | 4-/6-channel |
| Operating Temperature | −25°C to +85°C |
| Package Type | 256-Lead CSPBGA (Ball Grid Array) |
| Input Frequency Range | Up to 200 MHz |
| DDC Master Clock | Up to 200 MHz |
| Decimation Range | 1 to 32 |
Key Features
- High-performance track-and-hold input amplifier (T/H) and integrated voltage reference.
- 32-bit complex numerically controlled oscillator (NCO) with greater than 110 dBc SDFR.
- Phase and amplitude dithering to improve spurious performance of the NCO.
- 16-bit phase-offset word for creating a known phase relationship between multiple AD6654 chips or channels.
- Fifth-order CIC filter with programmable decimation between 1 and 32.
- Fractional clock multiplier to produce a DDC master clock from the ADC clock.
- High-speed parallel ports and DSP-compatible microprocessor interface for data output.
- Multiple modes supported for clocking data out of the chip.
- Serial or microport interfaces for programming.
Applications
The AD6654CBC is widely used in various wireless communication systems, including those based on CDMA2000, UMTS, TD-SCDMA, and WiMAX standards. It is also suitable for other wideband communication applications where high-performance IF-to-baseband conversion is required. Additionally, it can be used in radio systems that need to digitally demodulate and filter IF sampled signals.
Q & A
- What is the AD6654CBC?
The AD6654CBC is a mixed-signal IF-to-baseband receiver that includes a 14-bit ADC and a 4-/6-channel DDC. - What are the key applications of the AD6654CBC?
It is used in wireless communication systems based on CDMA2000, UMTS, TD-SCDMA, and WiMAX standards. - What is the sampling rate of the AD6654CBC?
The sampling rate is 92.16 MSPS. - What is the operating temperature range of the AD6654CBC?
The operating temperature range is −25°C to +85°C. - What type of package does the AD6654CBC come in?
The AD6654CBC comes in a 256-Lead CSPBGA (Ball Grid Array) package. - What is the input frequency range of the AD6654CBC?
The input frequency range is up to 200 MHz. - How does the AD6654CBC handle frequency translation?
Frequency translation is accomplished with a 32-bit complex NCO. - What is the decimation range of the CIC filter in the AD6654CBC?
The decimation range is between 1 and 32. - How is data output from the AD6654CBC?
Data is output via high-speed parallel ports or a DSP-compatible microprocessor interface. - What interfaces are available for programming the AD6654CBC?
Programming is accomplished via serial or microport interfaces.
