Overview
The AD6654BBC is a mixed-signal IF-to-baseband receiver produced by Analog Devices Inc. This component is designed to handle demanding filtering requirements for wideband standards such as CDMA2000, UMTS, TD-SCDMA, and WiMAX. It features a 14-bit, 92.16 MSPS analog-to-digital converter (ADC) and a 4-/6-channel multimode digital down-converter (DDC). The AD6654BBC is optimized for processing up to six WCDMA channels and is typically used in radio systems for digitally demodulating and filtering IF sampled signals.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14-bit |
| Sampling Rate | 92.16 MSPS |
| Channels | 4-/6-channel |
| Input Frequency Range | Up to 200 MHz |
| Package Type | 256-Lead CSPBGA (Ball Grid Array) |
| Operating Temperature Range | -25°C to +85°C |
| Clock Frequency | Up to 200 MHz (DDC master clock) |
| Decimation Range | 1 to 32 |
| Interface | High-speed parallel ports, DSP-compatible microprocessor interface |
Key Features
- High-performance track-and-hold input amplifier (T/H) and integrated voltage reference.
- Digital automatic gain control (AGC) block and phase and amplitude dither for improved spurious performance.
- 32-bit complex numerically controlled oscillator (NCO) with greater than 110 dBc SDFR.
- Fifth-order CIC filter with programmable decimation between 1 and 32.
- Fractional clock multiplier to produce a DDC master clock up to 200 MHz.
- Multiple modes for clocking data out of the chip, with programming via serial or microport interfaces.
- Support for various wideband standards including CDMA2000, UMTS, TD-SCDMA, and WiMAX.
Applications
The AD6654BBC is designed for use in radio systems that require the digital demodulation and filtering of IF sampled signals. It is particularly suited for applications in wireless communication systems, including those using CDMA2000, UMTS, TD-SCDMA, and WiMAX standards. Other potential applications include baseband processing in cellular base stations, wireless infrastructure, and other high-performance communication systems.
Q & A
- What is the resolution and sampling rate of the AD6654BBC?
The AD6654BBC has a 14-bit resolution and a sampling rate of 92.16 MSPS.
- How many channels does the AD6654BBC support?
The AD6654BBC supports both 4-channel and 6-channel configurations.
- What is the input frequency range of the AD6654BBC?
The input frequency range of the AD6654BBC is up to 200 MHz.
- What type of package does the AD6654BBC come in?
The AD6654BBC comes in a 256-Lead CSPBGA (Ball Grid Array) package.
- What is the operating temperature range of the AD6654BBC?
The operating temperature range of the AD6654BBC is -25°C to +85°C.
- What interfaces are available for data output on the AD6654BBC?
The AD6654BBC supports high-speed parallel ports and a DSP-compatible microprocessor interface.
- What is the purpose of the 32-bit complex NCO in the AD6654BBC?
The 32-bit complex NCO is used for frequency translation, translating a real input signal from an intermediate frequency (IF) to a baseband complex digital output).
- Is the AD6654BBC still in production?
No, the AD6654BBC is obsolete and no longer manufactured).
- What are some of the supported wideband standards for the AD6654BBC?
The AD6654BBC supports various wideband standards including CDMA2000, UMTS, TD-SCDMA, and WiMAX).
- How does the AD6654BBC handle decimation?
The AD6654BBC features a fifth-order CIC filter with programmable decimation between 1 and 32).
