CMX994x RF Direct Conversion Receivers
CML Micro's receivers offer ultra-high IIP2 performance for use in zero-IF, near zero-IF, and low-IF systems
CML Micro's CMX994x direct conversion receivers feature PowerTrade™ which provides the ability to dynamically select power versus performance to suit different system requirements. The devices convert RF signals in a 100 MHz to 1,000 MHz range directly down to the I/Q baseband or low IF. The low power consumption makes the receivers an ideal choice for battery-operated and portable applications. The CMX994A receiver is the standard version with low-power modes and the CMX994E receiver is an enhanced version with improved inter-modulation performance modes.
The CMX994x devices offer exceptional blocking performance to reject strong off-channel signals with measured values greater than 100 dB. The devices include an LNA with gain control followed by a high dynamic range, high-linearity (IIP2 ~79 dBm) I/Q demodulator with baseband filtering and gain control.
- Frequency range: 50 MHz to 1.218 GHz
- I/Q bandwidth: up to 1.6 MHz
- Ultra-high mixer IIP2 for practical zero-IF receivers
- Programmable gain: up to 62 dB
- LNA with gain control
- DC offset correction
- Precise baseband filtering with 1:2:4 bandwidth select control
- SPI compatible C-BUS serial interface
- Low power: 33 mA to 74 mA at 3.3 V
- 40-pin 6 mm x 6 mm VQFN package
- PMR/LMR
- Public safety: TETRA and P25
- Software-defined radios (SDR)
- Avionics receivers
- Wireless data modems
- Marine radios
- Military/tactical


