Overview
The AD9867BCPZRL is a mixed-signal front-end (MxFE) integrated circuit designed by Analog Devices Inc. for transceiver applications. It is particularly suited for broadband modems, offering a comprehensive set of features that include both transmit (Tx) and receive (Rx) path functionalities. The device operates with data rates up to 75 MSPS and is known for its high Tx-to-Rx isolation, making it suitable for both half-duplex and full-duplex operations. The AD9867BCPZRL is available in a 64-lead LFCSP package and is specified over the commercial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Specification |
|---|---|
| Package Type | 64-lead LFCSP (9x9 mm) |
| Supply Voltage | 3.3 V |
| Temperature Range | −40°C to +85°C |
| DAC Resolution | 10-bit |
| DAC Update Rate | 250 MSPS |
| ADC Resolution | 10-bit |
| ADC Sample Rate | 5 MSPS to 75 MSPS |
| RxPGA Gain Range | −12 dB to +48 dB (in 1 dB steps) |
| Input Overload Attenuator | 6 dB (or more with external resistors) |
| LPF Cutoff Frequency | 22 MHz to 38 MHz (or bypassed) |
| Clock Multiplier | Internal PLL with two auxiliary programmable clock outputs |
Key Features
- Low cost, 3.3 V CMOS MxFE for broadband modems
- 10-bit digital-to-analog converter (DAC) with 2×/4× interpolation filter
- 10-bit, 75 MSPS analog-to-digital converter (ADC)
- Low noise RxPGA with programmable gain range of −12 dB to +48 dB
- Dual channel muxed input and 6 dB input overload attenuator
- Third-order programmable low-pass filter
- Flexible digital datapath interface
- Half-duplex and full-duplex operation capabilities
- Programmable delay and Tx driver disable signal
- Various power-down/reduction modes
- Internal clock multiplier (PLL) and two auxiliary programmable clock outputs
Applications
The AD9867BCPZRL is primarily used in broadband modem applications, including power-line networking. Its high integration and flexible interface make it suitable for a variety of transceiver applications requiring high data rates and low power consumption.
Q & A
- What is the primary application of the AD9867BCPZRL?
The AD9867BCPZRL is primarily used in broadband modem applications, including power-line networking. - What is the package type of the AD9867BCPZRL?
The AD9867BCPZRL is available in a 64-lead LFCSP package. - What is the operating temperature range of the AD9867BCPZRL?
The operating temperature range is −40°C to +85°C. - What is the resolution and update rate of the DAC in the AD9867BCPZRL?
The DAC has a 10-bit resolution and a 250 MSPS update rate. - What is the sample rate range of the ADC in the AD9867BCPZRL?
The ADC sample rate ranges from 5 MSPS to 75 MSPS. - What is the gain range of the RxPGA in the AD9867BCPZRL?
The RxPGA has a programmable gain range of −12 dB to +48 dB in 1 dB steps. - Does the AD9867BCPZRL support half-duplex and full-duplex operations?
Yes, it supports both half-duplex and full-duplex operations. - What power-saving features does the AD9867BCPZRL offer?
The device offers various power-down/reduction modes to reduce power consumption. - How does the AD9867BCPZRL manage clock signals?
The device includes an internal PLL clock multiplier and synthesizer, providing all required internal clocks and two external clocks from a single crystal or clock source. - What is the typical input referred noise of the RxPGA in the AD9867BCPZRL?
The input referred noise of the RxPGA is less than 3.6 nV/√Hz for gain settings beyond 36 dB.
