2.4GHz 802.11b Zero-IF Transceivers The MAX2820ETM is a transceiver IC manufactured by Maxim Integrated. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX2820ETM
- **Type:** RF Transceiver
- **Frequency Range:** 2.4GHz to 2.5GHz
- **Modulation:** Supports IEEE 802.11b/g standards
- **Supply Voltage:** 2.7V to 3.6V
- **Current Consumption:**
- Receive Mode: 45mA (typical)
- Transmit Mode: 250mA (typical at +15dBm output)
- **Package:** 48-Pin TQFN (7mm x 7mm)
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
The MAX2820ETM is a fully integrated, single-chip RF transceiver designed for 2.4GHz ISM band applications, including IEEE 802.11b/g wireless LAN systems. It integrates a direct-conversion receiver, a direct-upconversion transmitter, a voltage-controlled oscillator (VCO), and a synthesizer, reducing external component count.
### **Features:**
- **Integrated RF Transceiver:** Combines receiver, transmitter, and synthesizer in a single chip.
- **Direct Conversion Architecture:** Eliminates IF stages for simplified design.
- **Low Noise Figure:** 4.5dB (typical) for improved receiver sensitivity.
- **Programmable Output Power:** Up to +15dBm in transmit mode.
- **On-Chip VCO and PLL:** Supports fast frequency settling.
- **I/Q Baseband Interface:** Compatible with baseband processors.
- **Low-Power Modes:** Supports power-saving operation.
- **48-Pin TQFN Package:** Compact footprint for space-constrained designs.
This information is based solely on the manufacturer's datasheet and technical documentation.
