Overview
The AD6643BCPZ-250 is an 11-bit, dual-channel intermediate frequency (IF) receiver produced by Analog Devices Inc. This component is specifically designed to support multi-antenna systems in telecommunications, where high dynamic range performance, low power consumption, and compact size are crucial. The AD6643BCPZ-250 operates at sample rates of up to 250 MSPS and is housed in a 64-lead, 9 mm × 9 mm lead frame chip scale package (LFCSP_VQ), making it ideal for applications requiring high performance and space efficiency.
Key Specifications
| Attribute | Value |
|---|---|
| Manufacturer | Analog Devices, Inc. |
| Package / Case | 64-VFQFN Exposed Pad, CSP |
| Mounting Type | Surface Mount |
| Function | IF Receiver |
| Sample Rates | Up to 250 MSPS |
| Resolution | 11-bit |
| Supply Voltage | 1.8 V |
| Total Power Consumption | 706 mW at 200 MSPS |
| Operating Temperature Range | -40°C to +85°C |
| RF Type | CDMA, CDMA2000, LTE, WiMAX |
| Input Clock Rate | Up to 625 MHz |
| Analog Input Range | 1.4 V p-p to 2.0 V p-p (1.75 V p-p nominal) |
| Output Interface | LVDS (ANSI-644 levels) |
Key Features
- Dual-channel IF receiver with 11-bit resolution and sample rates up to 250 MSPS.
- Compact 64-lead LFCSP_VQ package (9 mm × 9 mm × 0.85 mm) for space-efficient designs.
- Pin-selectable noise shaping requantizer (NSR) function to improve SNR within a reduced bandwidth.
- LVDS digital output interface compatible with low-cost FPGA families.
- Operation from a single 1.8 V supply voltage.
- Standard SPI-compatible serial interface for various control functions, including data formatting, NSR, power-down, test modes, and voltage reference mode.
- Internal ADC voltage reference and flexible analog input range.
- Differential analog inputs with 400 MHz bandwidth and 95 dB channel isolation/crosstalk.
- Energy-saving power-down modes).
Applications
- Communications systems, including diversity radio and smart antenna (MIMO) systems.
- Multimode digital receivers for 3G, WCDMA, LTE, CDMA2000, WiMAX, and TD-SCDMA).
- I/Q demodulation systems).
- General-purpose software radios).
Q & A
- What is the resolution and sample rate of the AD6643BCPZ-250?
The AD6643BCPZ-250 is an 11-bit, dual-channel IF receiver with sample rates up to 250 MSPS).
- What is the package type and size of the AD6643BCPZ-250?
The component is housed in a 64-lead LFCSP_VQ package, measuring 9 mm × 9 mm × 0.85 mm).
- What are the key features of the AD6643BCPZ-250's output interface?
The AD6643BCPZ-250 features an LVDS digital output interface configured for low-cost FPGA families).
- What is the supply voltage requirement for the AD6643BCPZ-250?
The component operates from a single 1.8 V supply voltage).
- What types of applications is the AD6643BCPZ-250 suited for?
The AD6643BCPZ-250 is suited for communications systems, including diversity radio and smart antenna systems, multimode digital receivers, I/Q demodulation systems, and general-purpose software radios).
- What is the operating temperature range of the AD6643BCPZ-250?
The operating temperature range is -40°C to +85°C).
- Does the AD6643BCPZ-250 support power-down modes?
Yes, the AD6643BCPZ-250 includes energy-saving power-down modes).
- What is the bandwidth of the differential analog inputs?
The differential analog inputs have a bandwidth of 400 MHz).
- What is the channel isolation/crosstalk of the AD6643BCPZ-250?
The channel isolation/crosstalk is 95 dB).
- How does the AD6643BCPZ-250 support system testing?
The component uses a 3-wire SPI-compatible serial interface with numerous modes to support board-level system testing).
