MSM7541 Description
The MSM7541 and MSM7542 are single-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion. Designed especially for a single-power supply and low-power applications, these devices are optimized for telephone terminals in digital wireless systems.
MSM7541 Key Features
- Single power supply: +3.0 V to +3.8 V
- Low power consumption Operating mode: 23 mW Typ. VDD = 3.3 V Power save mode: 1 mW Typ. VDD = 3.3 V Power down mode: 0.0
- ITU-T panding law MSM7541: m-law MSM7542: A-law
- Built-in PLL eliminates a master clock
- Serial data rate: 64/128/256/512/1024/2048 kHz 96/192/384/768/1536/1544/200 kHz
- Adjustable transmit gain
- Adjustable receive gain
- Built-in reference voltage supply
- Built-in analog loop back test mode
- Differential type analog output. Directly drives a piezoelectric type receiver equivalent to 1.2 kW + 55 nF
MSM7541 Applications
- Single power supply: +3.0 V to +3.8 V